Platform Chain (P-Chain) API

This API allows clients to interact with the P-Chain, which maintains Metal's validator set and handles blockchain creation.

Endpoint

/ext/bc/P

Format

This API uses the json 2.0 RPC format.

Methods

platform.addDelegator

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Add a delegator to the Primary Network.

A delegator stakes METAL and specifies a validator (the delegatee) to validate on their behalf. The delegatee has an increased probability of being sampled by other validators (weight) in proportion to the stake delegated to them.

The delegatee charges a fee to the delegator; the former receives a percentage of the delegator’s validation reward (if any.) A transaction that delegates stake has no fee.

The delegation period must be a subset of the period that the delegatee validates the Primary Network.

info

Once you issue the transaction to add a node as a delegator, there is no way to change the parameters. You can’t remove a stake early or change the stake amount, node ID, or reward address. Please make sure you’re using the correct values.

Signature

platform.addDelegator(
    {
        nodeID: string,
        startTime: int,
        endTime: int,
        stakeAmount: int,
        rewardAddress: string,
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string
}

• nodeID is the ID of the node to delegate to.
• startTime is the Unix time when the delegator starts delegating.
• endTime is the Unix time when the delegator stops delegating (and staked METAL is returned).
• stakeAmount is the amount of nMETAL the delegator is staking.
• rewardAddress is the address the validator reward goes to, if there is one.
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user that pays the transaction fee.
• password is username‘s password.
• txID is the transaction ID

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.addDelegator",
    "params": {
        "nodeID":"NodeID-MFrZFVCXPv5iCn6M9K6XduxGTYp891xXZ",
        "rewardAddress":"P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
        "startTime":1594102400,
        "endTime":1604102400,
        "stakeAmount":100000,
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "6pB3MtHUNogeHapZqMUBmx6N38ii3LzytVDrXuMovwKQFTZLs",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  },
  "id": 1
}

platform.addValidator

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Add a validator to the Primary Network. You must stake METAL to do this. If the node is sufficiently correct and responsive while validating, you receive a reward when end of staking period is reached. The validator’s probability of being sampled by other validators during consensus is in proportion to the amount of METAL staked.

The validator charges a fee to delegators; the former receives a percentage of the delegator’s validation reward (if any.) The minimum delegation fee is 2%. A transaction that adds a validator has no fee.

The validation period must be between 2 weeks and 1 year for the Mainnet, and 24 hours and 1 year for Tahoe Testnet.

There is a maximum total weight imposed on validators. This means that no validator will ever have more METAL staked and delegated to it than this value. This value will initially be set to min(5 * amount staked, 3M METAL). The total value on a validator is 3 million METAL.

info

Note that once you issue the transaction to add a node as a validator, there is no way to change the parameters. You can’t remove stake early or change the stake amount, node ID, or reward address. Please make sure you’re using the correct values.

Signature

platform.addValidator(
    {
        nodeID: string,
        startTime: int,
        endTime: int,
        stakeAmount: int,
        rewardAddress: string,
        delegationFeeRate: float,
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string
}

• nodeID is the node ID of the validator being added.
• startTime is the Unix time when the validator starts validating the Primary Network.
• endTime is the Unix time when the validator stops validating the Primary Network (and staked METAL is returned).
• stakeAmount is the amount of nMETAL the validator is staking.
• rewardAddress is the address the validator reward will go to, if there is one.
• delegationFeeRate is the percent fee this validator charges when others delegate stake to them. Up to 4 decimal places allowed; additional decimal places are ignored. Must be between 0 and 100, inclusive. For example, if delegationFeeRate is 1.2345 and someone delegates to this validator, then when the delegation period is over, 1.2345% of the reward goes to the validator and the rest goes to the delegator.
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user that pays the transaction fee.
• password is username‘s password.
• txID is the transaction ID

Example Call

In this example, we use shell command date to compute Unix times 10 minutes and 2 days in the future. (Note: If you’re on a Mac, replace $(date with $(gdate. If you don’t have gdate installed, do brew install coreutils.)

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.addValidator",
    "params": {
        "nodeID":"NodeID-ARCLrphAHZ28xZEBfUL7SVAmzkTZNe1LK",
        "rewardAddress":"P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "startTime":'$(date --date="10 minutes" +%s)',
        "endTime":'$(date --date="2 days" +%s)',
        "stakeAmount":1000000,
        "delegationFeeRate":10,
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "6pb3mthunogehapzqmubmx6n38ii3lzytvdrxumovwkqftzls",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  },
  "id": 1
}

platform.addSubnetValidator

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Add a validator to a Subnet other than the Primary Network. The Validator must validate the Primary Network for the entire duration they validate this Subnet.

Signature

platform.addSubnetValidator(
    {
        nodeID: string,
        subnetID: string,
        startTime: int,
        endTime: int,
        weight: int,
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string,
}

• nodeID is the node ID of the validator being added to the Subnet. This validator must validate the Primary Network for the entire duration that it validates this Subnet.
• subnetID is the ID of the Subnet we’re adding a validator to.
• startTime is the unix time when the validator starts validating the Subnet. It must be at or after the time that the validator starts validating the Primary Network
• endTime is the unix time when the validator stops validating the Subnet. It must be at or before the time that the validator stops validating the Primary Network.
• weight is the validator’s weight used for sampling. If the validator’s weight is 1 and the cumulative weight of all validators in the Subnet is 100, then this validator will be included in about 1 in every 100 samples during consensus. The cumulative weight of all validators in the Subnet must be at least snow-sample-size. For example, if there is only one validator in the Subnet, its weight must be at least snow-sample-size (default 20). Recall that a validator's weight can't be changed while it is validating, so take care to use an appropriate value.
• from are the fund addresses that the user wants to use to pay for this operation. If omitted, use any of user's addresses as needed.
• changeAddr is the address any change/left-over of the fund (specified by the from addresses) will be sent to. If omitted, change/left-over is sent to one of the addresses controlled by the user.
• username is the user that pays the transaction fee.
• password is username‘s password.
• txID is the transaction ID.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.addSubnetValidator",
    "params": {
        "nodeID":"NodeID-7xhw2mdxuds44j42tcb6u5579esbst3lg",
        "subnetID":"zbfoww1ffkpvrfywpj1cvqrfnyesepdfc61hmu2n9jnghduel",
        "startTime":1583524047,
        "endTime":1604102399,
        "weight":1,
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "txID": "2exafyvRNSE5ehwjhafBVt6CTntot7DFjsZNcZ54GSxBbVLcCm",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  }
}

platform.createAddress

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Create a new address controlled by the given user.

Signature

platform.createAddress({
    username: string,
    password: string
}) -> {address: string}

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.createAddress",
    "params": {
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"
  },
  "id": 1
}

platform.createBlockchain

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Create a new blockchain. Currently only supports the creation of new instances of the AVM and the Timestamp VM.

Signature

platform.createBlockchain(
    {
        subnetID: string,
        vmID: string,
        name: string,
        genesisData: string,
        encoding: string, // optional
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string
}

• subnetID is the ID of the Subnet that validates the new blockchain. The Subnet must exist and can’t be the Primary Network.
• vmID is the ID of the Virtual Machine the blockchain runs. Can also be an alias of the Virtual Machine.
• name is a human-readable name for the new blockchain. Not necessarily unique.
• genesisData is the byte representation of the genesis state of the new blockchain encoded in the format specified by the encoding parameter.
• encoding specifies the format to use for genesisData. Can only be hex when a value is provided. Virtual Machines should have a static API method named buildGenesis that can be used to generate genesisData
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user that pays the transaction fee. This user must have a sufficient number of the subnet’s control keys.
• password is username‘s password.
• txID is the transaction ID.

Example Call

In this example we’re creating a new instance of the Timestamp Virtual Machine. genesisData came from calling timestamp.buildGenesis.

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.createBlockchain",
    "params" : {
        "vmID":"timestamp",
        "subnetID":"2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r",
        "name":"My new timestamp",
        "genesisData": "0x07000000000000000000000000000000000000000000000000000000000000000016943a",
        "encoding": "hex",
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "2TBnyFmST7TirNm6Y6z4863zusRVpWi5Cj1sKS9bXTUmu8GfeU",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  },
  "id": 1
}

platform.createSubnet

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Create a new Subnet.

The Subnet’s ID is the same as this transaction’s ID.

Signature

platform.createSubnet(
    {
        controlKeys: []string,
        threshold: int,
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string
}

• In order to add a validator to this Subnet, threshold signatures are required from the addresses in controlKeys
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user that pays the transaction fee.
• password is username‘s password.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.createSubnet",
    "params": {
        "controlKeys":[
            "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
            "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"
        ],
        "threshold":2,
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "hJfC5xGhtjhCGBh1JWn3vZ51KJP696TZrsbadPHNbQG2Ve5yd"
  },
  "id": 1
}

platform.exportAVAX

Send METAL from an address on the P-Chain to an address on the X-Chain or C-Chain. After issuing this transaction, you must call the X-Chain's avm.import or C-Chain's avax.import with assetID METAL to complete the transfer.

Signature

platform.exportAVAX(
    {
        amount: int,
        from: []string, // optional
        to: string,
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    txID: string,
    changeAddr: string
}

• amount is the amount of nAVAX to send.
• to is the address on the X-Chain or C-Chain to send the METAL to.
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user sending the METAL and paying the transaction fee.
• password is username‘s password.
• txID is the ID of this transaction.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.exportAVAX",
    "params": {
        "to":"X-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
        "amount":1,
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "2Kz69TNBSeABuaVjKa6ZJCTLobbe5xo9c5eU8QwdUSvPo2dBk3",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  },
  "id": 1
}

platform.exportKey

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Get the private key that controls a given address. The returned private key can be added to a user with platform.importKey.

Signature

platform.exportKey({
    username: string,
    password: string,
    address: string
}) -> {privateKey: string}

• username is the user that controls address.
• password is username‘s password.
• privateKey is the string representation of the private key that controls address.

Example Call

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.exportKey",
    "params" :{
        "username" :"myUsername",
        "password": "myPassword",
        "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "privateKey": "PrivateKey-Lf49kAJw3CbaL783vmbeAJvhscJqC7vi5yBYLxw2XfbzNS5RS"
  }
}

platform.getBalance

Get the balance of METAL controlled by a given address.

Signature

platform.getBalance({
    address:string
}) -> {
    balance: string,
    unlocked: string,
    lockedStakeable: string,
    lockedNotStakeable: string,
    utxoIDs: []{
        txID: string,
        outputIndex: int
    }
}

• address is the address to get the balance of.
• balance is the total balance, in nMETAL.
• unlocked is the unlocked balance, in nMETAL.
• lockedStakeable is the locked stakeable balance, in nMETAL.
• lockedNotStakeable is the locked and not stakeable balance, in nMETAL.
• utxoIDs are the IDs of the UTXOs that reference address.

Example Call

curl -X POST --data '{
  "jsonrpc":"2.0",
  "id"     : 1,
  "method" :"platform.getBalance",
  "params" :{
      "address":"P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"
  }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "balance": "20000000000000000",
    "unlocked": "10000000000000000",
    "lockedStakeable": "10000000000000000",
    "lockedNotStakeable": "0",
    "utxoIDs": [
      {
        "txID": "11111111111111111111111111111111LpoYY",
        "outputIndex": 1
      },
      {
        "txID": "11111111111111111111111111111111LpoYY",
        "outputIndex": 0
      }
    ]
  },
  "id": 1
}

platform.getBlock

Get a block by its ID.

Signature

platform.getBlock({
    blockID: string
    encoding: string // optional
}) -> {
    block: string,
    encoding: string
}

Request

• blockID is the block ID. It should be in cb58 format.
• encoding is the encoding format to use. Can be either hex or json. Defaults to hex.

Response

• block is the transaction encoded to encoding.
• encoding is the encoding.

Hex Example

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getBlock",
    "params": {
        "blockID": "d7WYmb8VeZNHsny3EJCwMm6QA37s1EHwMxw1Y71V3FqPZ5EFG",
        "encoding": "hex"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "block": "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",
    "encoding": "hex"
  },
  "id": 1
}

JSON Example

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getBlock",
    "params": {
        "blockID": "d7WYmb8VeZNHsny3EJCwMm6QA37s1EHwMxw1Y71V3FqPZ5EFG",
        "encoding": "json"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "block": {
      "parentID": "5615di9ytxujackzaXNrVuWQy5y8Yrt8chPCscMr5Ku9YxJ1S",
      "height": 1000001,
      "txs": [
        {
          "unsignedTx": {
            "inputs": {
              "networkID": 1,
              "blockchainID": "11111111111111111111111111111111LpoYY",
              "outputs": [],
              "inputs": [
                {
                  "txID": "DTqiagiMFdqbNQ62V2Gt1GddTVLkKUk2caGr4pyza9hTtsfta",
                  "outputIndex": 0,
                  "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
                  "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
                  "input": {
                    "amount": 13839124063,
                    "signatureIndices": [0]
                  }
                }
              ],
              "memo": "0x"
            },
            "destinationChain": "2q9e4r6Mu3U68nU1fYjgbR6JvwrRx36CohpAX5UQxse55x1Q5",
            "exportedOutputs": [
              {
                "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
                "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
                "output": {
                  "addresses": [
                    "P-metal1jkjyvlwclyu42n4yuegpczpfgwrf8r9lyj0d3c"
                  ],
                  "amount": 13838124063,
                  "locktime": 0,
                  "threshold": 1
                }
              }
            ]
          },
          "credentials": [
            {
              "signatures": [
                "0xc79711c4b48dcde205b63603efef7c61773a0eb47efb503fcebe40d21962b7c25ebd734057400a12cce9cf99aceec8462923d5d91fffe1cb908372281ed7385801"
              ]
            }
          ]
        }
      ]
    },
    "encoding": "json"
  },
  "id": 1
}

platform.getBlockchains

Get all the blockchains that exist (excluding the P-Chain).

Signature

platform.getBlockchains() ->
{
    blockchains: []{
        id: string,
        name:string,
        subnetID: string,
        vmID: string
    }
}

• blockchains is all of the blockchains that exists on the Metal network.
• name is the human-readable name of this blockchain.
• id is the blockchain’s ID.
• subnetID is the ID of the Subnet that validates this blockchain.
• vmID is the ID of the Virtual Machine the blockchain runs.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getBlockchains",
    "params": {},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "blockchains": [
      {
        "id": "2oYMBNV4eNHyqk2fjjV5nVQLDbtmNJzq5s3qs3Lo6ftnC6FByM",
        "name": "X-Chain",
        "subnetID": "11111111111111111111111111111111LpoYY",
        "vmID": "jvYyfQTxGMJLuGWa55kdP2p2zSUYsQ5Raupu4TW34ZAUBAbtq"
      },
      {
        "id": "2q9e4r6Mu3U68nU1fYjgbR6JvwrRx36CohpAX5UQxse55x1Q5",
        "name": "C-Chain",
        "subnetID": "11111111111111111111111111111111LpoYY",
        "vmID": "mgj786NP7uDwBCcq6YwThhaN8FLyybkCa4zBWTQbNgmK6k9A6"
      },
      {
        "id": "CqhF97NNugqYLiGaQJ2xckfmkEr8uNeGG5TQbyGcgnZ5ahQwa",
        "name": "Simple DAG Payments",
        "subnetID": "11111111111111111111111111111111LpoYY",
        "vmID": "sqjdyTKUSrQs1YmKDTUbdUhdstSdtRTGRbUn8sqK8B6pkZkz1"
      },
      {
        "id": "VcqKNBJsYanhVFxGyQE5CyNVYxL3ZFD7cnKptKWeVikJKQkjv",
        "name": "Simple Chain Payments",
        "subnetID": "11111111111111111111111111111111LpoYY",
        "vmID": "sqjchUjzDqDfBPGjfQq2tXW1UCwZTyvzAWHsNzF2cb1eVHt6w"
      },
      {
        "id": "2SMYrx4Dj6QqCEA3WjnUTYEFSnpqVTwyV3GPNgQqQZbBbFgoJX",
        "name": "Simple Timestamp Server",
        "subnetID": "11111111111111111111111111111111LpoYY",
        "vmID": "tGas3T58KzdjLHhBDMnH2TvrddhqTji5iZAMZ3RXs2NLpSnhH"
      },
      {
        "id": "KDYHHKjM4yTJTT8H8qPs5KXzE6gQH5TZrmP1qVr1P6qECj3XN",
        "name": "My new timestamp",
        "subnetID": "2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r",
        "vmID": "tGas3T58KzdjLHhBDMnH2TvrddhqTji5iZAMZ3RXs2NLpSnhH"
      },
      {
        "id": "2TtHFqEAAJ6b33dromYMqfgavGPF3iCpdG3hwNMiart2aB5QHi",
        "name": "My new AVM",
        "subnetID": "2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r",
        "vmID": "jvYyfQTxGMJLuGWa55kdP2p2zSUYsQ5Raupu4TW34ZAUBAbtq"
      }
    ]
  },
  "id": 1
}

platform.getBlockchainStatus

Get the status of a blockchain.

Signature

platform.getBlockchainStatus(
    {
        blockchainID: string
    }
) -> {status: string}

status is one of:

• Validating: The blockchain is being validated by this node.
• Created: The blockchain exists but isn’t being validated by this node.
• Preferred: The blockchain was proposed to be created and is likely to be created but the transaction isn’t yet accepted.
• Syncing: This node is participating in this blockchain as a non-validating node.
• Unknown: The blockchain either wasn’t proposed or the proposal to create it isn’t preferred. The proposal may be resubmitted.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getBlockchainStatus",
    "params":{
        "blockchainID":"2NbS4dwGaf2p1MaXb65PrkZdXRwmSX4ZzGnUu7jm3aykgThuZE"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "status": "Created"
  },
  "id": 1
}

platform.getCurrentSupply

Returns an upper bound on the number of METAL that exist. This is an upper bound because it does not account for burnt tokens, including transaction fees.

Signature

platform.getCurrentSupply() -> {supply: int}

• supply is an upper bound on the number of METAL that exist, denominated in nMETAL.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getCurrentSupply",
    "params": {},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "supply": "365865167637779183"
  },
  "id": 1
}

The response in this example indicates that METAL's supply is at most 365.865 million.

platform.getCurrentValidators

List the current validators of the given Subnet.

Signature

platform.getCurrentValidators({
    subnetID: string, // optional
    nodeIDs: string[], // optional
}) -> {
    validators: []{
        txID: string,
        startTime: string,
        endTime: string,
        stakeAmount: string,
        nodeID: string,
        weight: string,
        rewardOwner: {
            locktime: string,
            threshold: string,
            addresses: string[]
        },
        potentialReward: string,
        delegationFee: string,
        uptime: string,
        connected: bool,
        delegators: []{
            txID: string,
            startTime: string,
            endTime: string,
            stakeAmount: string,
            nodeID: string,
            rewardOwner: {
                locktime: string,
                threshold: string,
                addresses: string[]
            },
            potentialReward: string,
        }
    }
}

• subnetID is the Subnet whose current validators are returned. If omitted, returns the current validators of the Primary Network.
• nodeIDs is a list of the nodeIDs of current validators to request. If omitted, all current validators are returned. If a specified nodeID is not in the set of current validators, it will not be included in the response.
• validators:
  • txID is the validator transaction.
  • startTime is the Unix time when the validator starts validating the Subnet.
  • endTime is the Unix time when the validator stops validating the Subnet.
  • stakeAmount is the amount of nMETAL this validator staked. Omitted if subnetID is not the Primary Network.
  • nodeID is the validator’s node ID.
  • weight is the validator’s weight when sampling validators. Omitted if subnetID is the Primary Network.
  • rewardOwner is an OutputOwners output which includes locktime, threshold and array of addresses. Omitted if subnetID is not the Primary Network.
  • potentialReward is the potential reward earned from staking. Omitted if subnetID is not the Primary Network.
  • delegationFeeRate is the percent fee this validator charges when others delegate stake to them. Omitted if subnetID is not the Primary Network.
  • uptime is the % of time the queried node has reported the peer as online. Omitted if subnetID is not the Primary Network.
  • connected is if the node is connected and tracks the Subnet.
  • delegators is the list of delegators to this validator. Omitted if subnetID is not the Primary Network.
    • txID is the delegator transaction.
    • startTime is the Unix time when the delegator started.
    • endTime is the Unix time when the delegator stops.
    • stakeAmount is the amount of nMETAL this delegator staked.
    • nodeID is the validating node’s node ID.
    • rewardOwner is an OutputOwners output which includes locktime, threshold and array of addresses.
    • potentialReward is the potential reward earned from staking

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getCurrentValidators",
    "params": {},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "validators": [
      {
        "txID": "2NNkpYTGfTFLSGXJcHtVv6drwVU2cczhmjK2uhvwDyxwsjzZMm",
        "startTime": "1600368632",
        "endTime": "1602960455",
        "stakeAmount": "2000000000000",
        "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
        "rewardOwner": {
          "locktime": "0",
          "threshold": "1",
          "addresses": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
        },
        "potentialReward": "117431493426",
        "delegationFee": "10.0000",
        "uptime": "0.0000",
        "connected": false,
        "delegators": [
          {
            "txID": "Bbai8nzGVcyn2VmeYcbS74zfjJLjDacGNVuzuvAQkHn1uWfoV",
            "startTime": "1600368523",
            "endTime": "1602960342",
            "stakeAmount": "25000000000",
            "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
            "rewardOwner": {
              "locktime": "0",
              "threshold": "1",
              "addresses": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
            },
            "potentialReward": "11743144774"
          }
        ]
      }
    ]
  },
  "id": 1
}

platform.getHeight

Returns the height of the last accepted block.

Signature

platform.getHeight() ->
{
    height: int,
}

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getHeight",
    "params": {},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "height": "56"
  },
  "id": 1
}

platform.getMaxStakeAmount

Returns the maximum amount of nMETAL staking to the named node during a particular time period.

Signature

platform.getMaxStakeAmount(
    {
        subnetID: string,
        nodeID: string,
        startTime: int,
        endTime: int
    }
) ->
{
    amount: uint64
}

• subnetID is a Buffer or cb58 string representing Subnet
• nodeID is a string representing ID of the node whose stake amount is required during the given duration
• startTime is a big number denoting start time of the duration during which stake amount of the node is required.
• endTime is a big number denoting end time of the duration during which stake amount of the node is required.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getMaxStakeAmount",
    "params": {
        "subnetID":"11111111111111111111111111111111LpoYY",
        "nodeID":"NodeID-7Xhw2mDxuDS44j42TCB6U5579esbSt3Lg",
        "startTime": 1644240334,
        "endTime": 1644240634
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "amount": "2000000000000000"
  },
  "id": 1
}

platform.getMinStake

Get the minimum amount of METAL required to validate the Primary Network and the minimum amount of METAL that can be delegated.

Signature

platform.getMinStake() ->
{
    minValidatorStake : uint64,
    minDelegatorStake : uint64
}

Example Call

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getMinStake"
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "minValidatorStake": "2000000000000",
    "minDelegatorStake": "25000000000"
  },
  "id": 1
}

platform.getPendingValidators

List the validators in the pending validator set of the specified Subnet. Each validator is not currently validating the Subnet but will in the future.

Signature

platform.getPendingValidators({
    subnetID: string, // optional
    nodeIDs: string[], // optional
}) -> {
    validators: []{
        txID: string,
        startTime: string,
        endTime: string,
        stakeAmount: string,
        nodeID: string,
        delegationFee: string,
        connected: bool,
        weight: string,
    },
    delegators: []{
        txID: string,
        startTime: string,
        endTime: string,
        stakeAmount: string,
        nodeID: string
    }
}

• subnetID is the Subnet whose current validators are returned. If omitted, returns the current validators of the Primary Network.
• nodeIDs is a list of the nodeIDs of pending validators to request. If omitted, all pending validators are returned. If a specified nodeID is not in the set of pending validators, it will not be included in the response.
• validators:
  • txID is the validator transaction.
  • startTime is the Unix time when the validator starts validating the Subnet.
  • endTime is the Unix time when the validator stops validating the Subnet.
  • stakeAmount is the amount of nMETAL this validator staked. Omitted if subnetID is not the Primary Network.
  • nodeID is the validator’s node ID.
  • connected if the node is connected and tracks the Subnet.
  • weight is the validator’s weight when sampling validators. Omitted if subnetID is the Primary Network.
• delegators:
  • txID is the delegator transaction.
  • startTime is the Unix time when the delegator starts.
  • endTime is the Unix time when the delegator stops.
  • stakeAmount is the amount of nMETAL this delegator staked. Omitted if subnetID is not the Primary Network.
  • nodeID is the validating node’s node ID.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getPendingValidators",
    "params": {},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "validators": [
      {
        "txID": "2NNkpYTGfTFLSGXJcHtVv6drwVU2cczhmjK2uhvwDyxwsjzZMm",
        "startTime": "1600368632",
        "endTime": "1602960455",
        "stakeAmount": "200000000000",
        "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
        "delegationFee": "10.0000",
        "connected": false
      }
    ],
    "delegators": [
      {
        "txID": "Bbai8nzGVcyn2VmeYcbS74zfjJLjDacGNVuzuvAQkHn1uWfoV",
        "startTime": "1600368523",
        "endTime": "1602960342",
        "stakeAmount": "20000000000",
        "nodeID": "NodeID-7Xhw2mDxuDS44j42TCB6U5579esbSt3Lg"
      }
    ]
  },
  "id": 1
}

platform.getRewardUTXOs

Returns the UTXOs that were rewarded after the provided transaction's staking or delegation period ended.

Signature

platform.getRewardUTXOs({
    txID: string,
    encoding: string // optional
}) -> {
    numFetched: integer,
    utxos: []string,
    encoding: string
}

• txID is the ID of the staking or delegating transaction
• numFetched is the number of returned UTXOs
• utxos is an array of encoded reward UTXOs
• encoding specifies the format for the returned UTXOs. Can only be hex when a value is provided.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getRewardUTXOs",
    "params": {
        "txID": "2nmH8LithVbdjaXsxVQCQfXtzN9hBbmebrsaEYnLM9T32Uy2Y5"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "numFetched": "2",
    "utxos": [
      "0x0000a195046108a85e60f7a864bb567745a37f50c6af282103e47cc62f036cee404700000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216c1f01765",
      "0x0000ae8b1b94444eed8de9a81b1222f00f1b4133330add23d8ac288bffa98b85271100000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216473d042a"
    ],
    "encoding": "hex"
  },
  "id": 1
}

platform.getStakingAssetID

Retrieve an assetID for a subnet’s staking asset. Currently, this only returns the Primary Network’s staking assetID.

Signature

platform.getStakingAssetID({
    subnetID: string // optional
}) -> {
    assetID: string
}

• subnetID is the Subnet whose assetID is requested.
• assetID is the assetID for a subnet’s staking asset.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getStakingAssetID",
    "params": {
        "subnetID": "11111111111111111111111111111111LpoYY"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "assetID": "2fombhL7aGPwj3KH4bfrmJwW6PVnMobf9Y2fn9GwxiAAJyFDbe"
  },
  "id": 1
}

platform.getSubnets

Get info about the Subnets.

Signature

platform.getSubnets(
    {ids: []string}
) ->
{
    subnets: []{
        id: string,
        controlKeys: []string,
        threshold: string
    }
}

• ids are the IDs of the Subnets to get information about. If omitted, gets information about all Subnets.
• id is the Subnet’s ID.
• threshold signatures from addresses in controlKeys are needed to add a validator to the Subnet.

See here for information on adding a validator to a Subnet.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getSubnets",
    "params": {"ids":["hW8Ma7dLMA7o4xmJf3AXBbo17bXzE7xnThUd3ypM4VAWo1sNJ"]},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "subnets": [
      {
        "id": "hW8Ma7dLMA7o4xmJf3AXBbo17bXzE7xnThUd3ypM4VAWo1sNJ",
        "controlKeys": [
          "KNjXsaA1sZsaKCD1cd85YXauDuxshTes2",
          "Aiz4eEt5xv9t4NCnAWaQJFNz5ABqLtJkR"
        ],
        "threshold": "2"
      }
    ]
  },
  "id": 1
}

platform.getStake

Get the amount of nMETAL staked by a set of addresses. The amount returned does not include staking rewards.

Signature

platform.getStake(
    {addresses: []string}
) ->
{
    staked: int,
    stakedOutputs:  []string,
    encoding: string
}

• addresses are the addresses to get information about.
• staked is the amount of nMETAL staked by addresses provided.
• stakedOutputs are the string representation of staked outputs.
• encoding specifies the format for the returned outputs.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getStake",
    "params": {
        "addresses": [
            "P-metal1pmgmagjcljjzuz2ve339dx82khm7q8getlegte"
        ]
    },
    "id": 1
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "staked": "26870333254",
    "stakedOutputs": [
      "0x000021e67317cbc4be2aeb00677ad6462778a8f52274b9d605df2591b23027a87dff00000007000000064198bf46000000000000000000000001000000010ed1bea258fca42e094ccc625698eab5f7e01d190f0f332d"
    ],
    "encoding": "hex"
  },
  "id": 1
}

platform.getTimestamp

Get the current P-Chain timestamp.

Signature

platform.getTimestamp() -> {time: string}

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTimestamp",
    "params": {},
    "id": 1
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "timestamp": "2021-09-07T00:00:00-04:00"
  },
  "id": 1
}

platform.getTotalStake

Get the total amount of nMETAL staked on the Primary Network.

Signature

platform.getTotalStake(subnetID: string) -> {stake: int}

Primary Network Example

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTotalStake",
    "params": {},
    "id": 1
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "stake": "279825917679866811"
  },
  "id": 1
}

Subnet Example

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTotalStake",
    "params": {
        "subnetID": "2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r",
    },
    "id": 1
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "weight": "100000"
  },
  "id": 1
}

platform.getTx

Gets a transaction by its ID.

Optional encoding parameter to specify the format for the returned transaction. Can be either "hex" or "json". Defaults to "hex".

Signature

platform.getTx({
    txID: string,
    encoding: string // optional
}) -> {
    tx: string,
    encoding: string,
}

JSON Example

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTx",
    "params": {
        "txID":"2Eug3Y6j1yD745y5bQ9bFCf5nvU2qT1eB53GSpD15EkGUfu8xh",
        "encoding": "json"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "tx": {
      "unsignedTx": {
        "inputs": {
          "networkID": 5,
          "blockchainID": "11111111111111111111111111111111LpoYY",
          "outputs": [],
          "inputs": [
            {
              "txID": "2QYG5yR6YW55ixmBvR4zXLCZKV9we9bmSWHHiGppF4Ko17bTPn",
              "outputIndex": 0,
              "assetID": "U8iRqJoiJm8xZHAacmvYyZVwqQx6uDNtQeP3CQ6fcgQk3JqnK",
              "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
              "input": {
                "amount": 1998000000,
                "signatureIndices": [0]
              }
            }
          ],
          "memo": "0x"
        },
        "destinationChain": "yH8D7ThNJkxmtkuv2jgBa4P1Rn3Qpr4pPr7QYNfcdoS6k6HWp",
        "exportedOutputs": [
          {
            "assetID": "U8iRqJoiJm8xZHAacmvYyZVwqQx6uDNtQeP3CQ6fcgQk3JqnK",
            "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
            "output": {
              "addresses": ["P-tahoe1yhem6kev6gkfsyse3m5z09e6qsuxujz0arpw8v"],
              "amount": 1997000000,
              "locktime": 0,
              "threshold": 1
            }
          }
        ]
      },
      "credentials": [
        {
          "signatures": [
            "0xdbc03ebd7d06927baacf7aea85cdebd7e0b95cf5b57715a09981fd5a75dac2cb610636bf3657ba4ca47dad4beed2e7f0ec692e7f12f1bbc9f3c34fc5c18ae35d01"
          ]
        }
      ]
    },
    "encoding": "json"
  },
  "id": 1
}

platform.getTxStatus

Gets a transaction’s status by its ID. If the transaction was dropped, response will include a reason field with more information why the transaction was dropped.

Signature

platform.getTxStatus({
    txID: string
}) -> {status: string}

status is one of:

• Committed: The transaction is (or will be) accepted by every node
• Processing: The transaction is being voted on by this node
• Dropped: The transaction will never be accepted by any node in the network, check reason field for more information
• Unknown: The transaction hasn’t been seen by this node

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTxStatus",
    "params": {
        "txID":"TAG9Ns1sa723mZy1GSoGqWipK6Mvpaj7CAswVJGM6MkVJDF9Q"
   },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "status": "Committed"
  },
  "id": 1
}

platform.getUTXOs

Gets the UTXOs that reference a given set of addresses.

Signature

platform.getUTXOs(
    {
        addresses: []string,
        limit: int, // optional
        startIndex: { // optional
            address: string,
            utxo: string
        },
        sourceChain: string, // optional
        encoding: string, // optional
    },
) ->
{
    numFetched: int,
    utxos: []string,
    endIndex: {
        address: string,
        utxo: string
    },
    encoding: string,
}

• utxos is a list of UTXOs such that each UTXO references at least one address in addresses.
• At most limit UTXOs are returned. If limit is omitted or greater than 1024, it is set to 1024.
• This method supports pagination. endIndex denotes the last UTXO returned. To get the next set of UTXOs, use the value of endIndex as startIndex in the next call.
• If startIndex is omitted, will fetch all UTXOs up to limit.
• When using pagination (ie when startIndex is provided), UTXOs are not guaranteed to be unique across multiple calls. That is, a UTXO may appear in the result of the first call, and then again in the second call.
• When using pagination, consistency is not guaranteed across multiple calls. That is, the UTXO set of the addresses may have changed between calls.
• encoding specifies the format for the returned UTXOs. Can only be hex when a value is provided.

Example

Suppose we want all UTXOs that reference at least one of P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5 and P-metal1d09qn852zcy03sfc9hay2llmn9hsgnw4tp3dv6.

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getUTXOs",
    "params" :{
        "addresses":["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5", "P-metal1d09qn852zcy03sfc9hay2llmn9hsgnw4tp3dv6"],
        "limit":5,
        "encoding": "hex"
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

This gives response:

{
  "jsonrpc": "2.0",
  "result": {
    "numFetched": "5",
    "utxos": [
      "0x0000a195046108a85e60f7a864bb567745a37f50c6af282103e47cc62f036cee404700000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216c1f01765",
      "0x0000ae8b1b94444eed8de9a81b1222f00f1b4133330add23d8ac288bffa98b85271100000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216473d042a",
      "0x0000731ce04b1feefa9f4291d869adc30a33463f315491e164d89be7d6d2d7890cfc00000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f21600dd3047",
      "0x0000b462030cc4734f24c0bc224cf0d16ee452ea6b67615517caffead123ab4fbf1500000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216c71b387e",
      "0x000054f6826c39bc957c0c6d44b70f961a994898999179cc32d21eb09c1908d7167b00000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f2166290e79d"
    ],
    "endIndex": {
      "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "utxo": "kbUThAUfmBXUmRgTpgD6r3nLj7rJUGho6xyht5nouNNypH45j"
    },
    "encoding": "hex"
  },
  "id": 1
}

Since numFetched is the same as limit, we can tell that there may be more UTXOs that were not fetched. We call the method again, this time with startIndex:

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getUTXOs",
    "params" :{
        "addresses":["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "limit":5,
        "startIndex": {
            "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
            "utxo": "0x62fc816bb209857923770c286192ab1f9e3f11e4a7d4ba0943111c3bbfeb9e4a5ea72fae"
        },
        "encoding": "hex"
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

This gives response:

{
  "jsonrpc": "2.0",
  "result": {
    "numFetched": "4",
    "utxos": [
      "0x000020e182dd51ee4dcd31909fddd75bb3438d9431f8e4efce86a88a684f5c7fa09300000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f21662861d59",
      "0x0000a71ba36c475c18eb65dc90f6e85c4fd4a462d51c5de3ac2cbddf47db4d99284e00000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f21665f6f83f",
      "0x0000925424f61cb13e0fbdecc66e1270de68de9667b85baa3fdc84741d048daa69fa00000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216afecf76a",
      "0x000082f30327514f819da6009fad92b5dba24d27db01e29ad7541aa8e6b6b554615c00000000345aa98e8a990f4101e2268fab4c4e1f731c8dfbcffa3a77978686e6390d624f000000070000000000000001000000000000000000000001000000018ba98dabaebcd83056799841cfbc567d8b10f216779c2d59"
    ],
    "endIndex": {
      "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "utxo": "21jG2RfqyHUUgkTLe2tUp6ETGLriSDTW3th8JXFbPRNiSZ11jK"
    },
    "encoding": "hex"
  },
  "id": 1
}

Since numFetched is less than limit, we know that we are done fetching UTXOs and don’t need to call this method again.

Suppose we want to fetch the UTXOs exported from the X Chain to the P Chain in order to build an ImportTx. Then we need to call GetUTXOs with the sourceChain argument in order to retrieve the atomic UTXOs:

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getUTXOs",
    "params" :{
        "addresses":["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "sourceChain": "X",
        "encoding": "hex"
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

This gives response:

{
  "jsonrpc": "2.0",
  "result": {
    "numFetched": "1",
    "utxos": [
      "0x00001f989ffaf18a18a59bdfbf209342aa61c6a62a67e8639d02bb3c8ddab315c6fa0000000139c33a499ce4c33a3b09cdd2cfa01ae70dbf2d18b2d7d168524440e55d55008800000007000000746a528800000000000000000000000001000000013cb7d3842e8cee6a0ebd09f1fe884f6861e1b29cd704fe76"
    ],
    "endIndex": {
      "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "utxo": "S5UKgWoVpoGFyxfisebmmRf8WqC7ZwcmYwS7XaDVZqoaFcCwK"
    },
    "encoding": "hex"
  },
  "id": 1
}

platform.getValidatorsAt

Get the validators and their weights of a Subnet or the Primary Network at a given P-Chain height.

Signature

platform.getValidatorsAt(
    {
        height: int,
        subnetID: string, // optional
    }
)

• height is the P-Chain height to get the validator set at.
• subnetID is the Subnet ID to get the validator set of. If not given, gets validator set of the Primary Network.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getValidatorsAt",
    "params": {
        "height":1
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "validators": {
      "NodeID-7Xhw2mDxuDS44j42TCB6U5579esbSt3Lg": 2000000000000000,
      "NodeID-GWPcbFJZFfZreETSoWjPimr846mXEKCtu": 2000000000000000,
      "NodeID-MFrZFVCXPv5iCn6M9K6XduxGTYp891xXZ": 2000000000000000,
      "NodeID-NFBbbJ4qCmNaCzeW7sxErhvWqvEQMnYcN": 2000000000000000,
      "NodeID-P7oB2McjBGgW2NXXWVYjV8JEDFoW9xDE5": 2000000000000000
    }
  },
  "id": 1
}

platform.importAVAX

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Complete a transfer of METAL from the X-Chain, or C-Chain to the P-Chain.

Before this method is called, you must call the X-Chain’s avm.export or C-Chain’s avax.export method with assetID METAL to initiate the transfer.

Signature

platform.importAVAX(
    {
        to: string,
        sourceChain: string,
        from: []string, // optional
        changeAddr: string, // optional
        username: string,
        password: string
    }
) ->
{
    tx: string,
    changeAddr: string
}

• to is the ID of the address the METAL is imported to. This must be the same as the to argument in the corresponding call to the X-Chain’s or C-Chain's export.
• sourceChain is the chain the funds are coming from. Must be either "X" or "C".
• from are the addresses that you want to use for this operation. If omitted, uses any of your addresses as needed.
• changeAddr is the address any change will be sent to. If omitted, change is sent to one of the addresses controlled by the user.
• username is the user that controls from and change addresses.
• password is username‘s password.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.importAVAX",
    "params": {
        "to": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
        "from": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u",
        "username": "myUsername",
        "password": "myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "P63NjowXaQJXt5cmspqdoD3VcuQdXUPM5eoZE2Vcg63aVEx8R",
    "changeAddr": "P-metal103y30cxeulkjfe3kwfnpt432ylmnxux8r73r8u"
  },
  "id": 1
}

platform.importKey

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

Give a user control over an address by providing the private key that controls the address.

Signature

platform.importKey({
    username: string,
    password: string,
    privateKey:string
}) -> {address: string}

• Add privateKey to username‘s set of private keys. address is the address username now controls with the private key.

Example Call

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.importKey",
    "params" :{
        "username": "myUsername",
        "password": "myPassword",
        "privateKey": "PrivateKey-2w4XiXxPfQK4TypYqnohRL8DRNTz9cGiGmwQ1zmgEqD9c9KWLq"
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "address": "P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"
  }
}

platform.issueTx

Issue a transaction to the Platform Chain.

Signature

platform.issueTx({
    tx: string,
    encoding: string, // optional
}) -> {txID: string}

• tx is the byte representation of a transaction.
• encoding specifies the encoding format for the transaction bytes. Can only be hex when a value is provided.
• txID is the transaction’s ID.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.issueTx",
    "params": {
        "tx":"0x00000009de31b4d8b22991d51aa6aa1fc733f23a851a8c9400000000000186a0000000005f041280000000005f9ca900000030390000000000000001fceda8f90fcb5d30614b99d79fc4baa29307762668f16eb0259a57c2d3b78c875c86ec2045792d4df2d926c40f829196e0bb97ee697af71f5b0a966dabff749634c8b729855e937715b0e44303fd1014daedc752006011b730",
        "encoding": "hex"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "txID": "G3BuH6ytQ2averrLxJJugjWZHTRubzCrUZEXoheG5JMqL5ccY"
  },
  "id": 1
}

platform.listAddresses

danger

Not recommended for use on Mainnet. See warning notice in Keystore API.

List addresses controlled by the given user.

Signature

platform.listAddresses({
    username: string,
    password: string
}) -> {addresses: []string}

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.listAddresses",
    "params": {
        "username":"myUsername",
        "password":"myPassword"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "addresses": ["P-metal18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
  },
  "id": 1
}

platform.sampleValidators

Sample validators from the specified Subnet.

Signature

platform.sampleValidators(
    {
        size: int,
        subnetID: string, // optional
    }
) ->
{
    validators: []string
}

• size is the number of validators to sample.
• subnetID is the Subnet to sampled from. If omitted, defaults to the Primary Network.
• Each element of validators is the ID of a validator.

Example Call

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.sampleValidators",
    "params" :{
        "size":2
    }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "validators": [
      "NodeID-MFrZFVCXPv5iCn6M9K6XduxGTYp891xXZ",
      "NodeID-NFBbbJ4qCmNaCzeW7sxErhvWqvEQMnYcN"
    ]
  }
}

platform.validatedBy

Get the Subnet that validates a given blockchain.

Signature

platform.validatedBy(
    {
        blockchainID: string
    }
) -> {subnetID: string}

• blockchainID is the blockchain’s ID.
• subnetID is the ID of the Subnet that validates the blockchain.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.validatedBy",
    "params": {
        "blockchainID": "KDYHHKjM4yTJTT8H8qPs5KXzE6gQH5TZrmP1qVr1P6qECj3XN"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "subnetID": "2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r"
  },
  "id": 1
}

platform.validates

Get the IDs of the blockchains a Subnet validates.

Signature

platform.validates(
    {
        subnetID: string
    }
) -> {blockchainIDs: []string}

• subnetID is the Subnet’s ID.
• Each element of blockchainIDs is the ID of a blockchain the Subnet validates.

Example Call

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.validates",
    "params": {
        "subnetID":"2bRCr6B4MiEfSjidDwxDpdCyviwnfUVqB2HGwhm947w9YYqb7r"
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response

{
  "jsonrpc": "2.0",
  "result": {
    "blockchainIDs": [
      "KDYHHKjM4yTJTT8H8qPs5KXzE6gQH5TZrmP1qVr1P6qECj3XN",
      "2TtHFqEAAJ6b33dromYMqfgavGPF3iCpdG3hwNMiart2aB5QHi"
    ]
  },
  "id": 1
}