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P-Chain

P-Chain API

This page is an overview of the P-Chain API associated with AvalancheGo.

The P-Chain API allows clients to interact with the P-Chain, which maintains Avalanche’s validator set and handles blockchain creation.

Endpoint

/ext/bc/P

Format

This API uses the json 2.0 RPC format.

Methods

platform.getBalance

Caution

Deprecated as of v1.9.12.

Get the balance of AVAX controlled by a given address.

Signature:

platform.getBalance({
    addresses: []string
}) -> {
    balances: string -> int,
    unlockeds: string -> int,
    lockedStakeables: string -> int,
    lockedNotStakeables: string -> int,
    utxoIDs: []{
        txID: string,
        outputIndex: int
    }
}
  • addresses are the addresses to get the balance of.
  • balances is a map from assetID to the total balance.
  • unlockeds is a map from assetID to the unlocked balance.
  • lockedStakeables is a map from assetID to the locked stakeable balance.
  • lockedNotStakeables is a map from assetID to the locked and not stakeable balance.
  • 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" :{
      "addresses":["P-custom18jma8ppw3nhx5r4ap8clazz0dps7rv5u9xde7p"]
  }
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "balance": "30000000000000000",
    "unlocked": "20000000000000000",
    "lockedStakeable": "10000000000000000",
    "lockedNotStakeable": "0",
    "balances": {
      "BUuypiq2wyuLMvyhzFXcPyxPMCgSp7eeDohhQRqTChoBjKziC": "30000000000000000"
    },
    "unlockeds": {
      "BUuypiq2wyuLMvyhzFXcPyxPMCgSp7eeDohhQRqTChoBjKziC": "20000000000000000"
    },
    "lockedStakeables": {
      "BUuypiq2wyuLMvyhzFXcPyxPMCgSp7eeDohhQRqTChoBjKziC": "10000000000000000"
    },
    "lockedNotStakeables": {},
    "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 block 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-avax1jkjyvlwclyu42n4yuegpczpfgwrf8r9lyj0d3c"
                  ],
                  "amount": 13838124063,
                  "locktime": 0,
                  "threshold": 1
                }
              }
            ]
          },
          "credentials": [
            {
              "signatures": [
                "0xc79711c4b48dcde205b63603efef7c61773a0eb47efb503fcebe40d21962b7c25ebd734057400a12cce9cf99aceec8462923d5d91fffe1cb908372281ed7385801"
              ]
            }
          ]
        }
      ]
    },
    "encoding": "json"
  },
  "id": 1
}

platform.getBlockByHeight

Get a block by its height.

Signature:

platform.getBlockByHeight({
    height: int
    encoding: string // optional
}) -> {
    block: string,
    encoding: string
}

Request:

  • height is the block height.
  • encoding is the encoding format to use. Can be either hex or json. Defaults to hex.

Response:

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

Hex Example

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getBlockByHeight",
    "params": {
        "height": 1000001,
        "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.getBlockByHeight",
    "params": {
        "height": 1000001,
        "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-avax1jkjyvlwclyu42n4yuegpczpfgwrf8r9lyj0d3c"
                  ],
                  "amount": 13838124063,
                  "locktime": 0,
                  "threshold": 1
                }
              }
            ]
          },
          "credentials": [
            {
              "signatures": [
                "0xc79711c4b48dcde205b63603efef7c61773a0eb47efb503fcebe40d21962b7c25ebd734057400a12cce9cf99aceec8462923d5d91fffe1cb908372281ed7385801"
              ]
            }
          ]
        }
      ]
    },
    "encoding": "json"
  },
  "id": 1
}

platform.getBlockchains

Caution

Deprecated as of v1.9.12.

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 Avalanche 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 amount of tokens that exist that can stake the requested Subnet. This is an upper bound because it does not account for burnt tokens, including transaction fees.

Signature:

platform.getCurrentSupply ({
  subnetID: string // optional
}) -> { supply: int }
  • supply is an upper bound on the number of tokens that exist.

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getCurrentSupply",
    "params": {
        "subnetID": "11111111111111111111111111111111LpoYY"
    },
    "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 AVAX’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,
        nodeID: string,
        weight: string,
        validationID: string,
        publicKey: string,
        remainingBalanceOwner: {
            locktime: string,
            threshold: string,
            addresses: string[]
        },
        deactivationOwner: {
            locktime: string,
            threshold: string,
            addresses: string[]
        },
        minNonce: string,
        balance: string,
        validationRewardOwner: {
            locktime: string,
            threshold: string,
            addresses: string[]
        },
        delegationRewardOwner: {
            locktime: string,
            threshold: string,
            addresses: string[]
        },
        potentialReward: string,
        delegationFee: string,
        uptime: string,
        connected: bool,
        signer: {
            publicKey: string,
            proofOfPosession: string
        },
        delegatorCount: string,
        delegatorWeight: string,
        delegators: []{
            txID: string,
            startTime: string,
            endTime: string,
            weight: 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 can include different fields based on the subnet type (L1, PoA Subnets, the Primary Network):
    • 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. Ommitted if subnetID is a L1 Subnet.
    • nodeID is the validator’s node ID.
    • weight is the validator’s weight (stake) when sampling validators.
    • validationID is the ID for L1 subnet validator registration transaction. Omitted if subnetID is not an L1 Subnet.
    • publicKey is the compressed BLS public key of the validator. Omitted if subnetID is not an L1 Subnet.
    • remainingBalanceOwner is an OutputOwners which includes a locktime, threshold, and an array of addresses. It specifies the owner that will receive any withdrawn balance. Omitted if subnetID is not an L1 Subnet.
    • deactivationOwner is an OutputOwners which includes a locktime, threshold, and an array of addresses. It specifies the owner that can withdraw the balance. Omitted if subnetID is not an L1 Subnet.
    • minNonce is minimum nonce that must be included in a SetL1ValidatorWeightTx for the transaction to be valid. Omitted if subnetID is not an L1 Subnet.
    • balance is current remaining balance that can be used to pay for the validators continuous fee. Omitted if subnetID is not an L1 Subnet.
    • validationRewardOwner is an OutputOwners output which includes locktime, threshold and array of addresses. Specifies the owner of the potential reward earned from staking. Omitted if subnetID is not the Primary Network.
    • delegationRewardOwner is an OutputOwners output which includes locktime, threshold and array of addresses. Specifies the owner of the potential reward earned from delegations. 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 and validating the Subnet. Omitted if subnetID is not the Primary Network.
    • connected is if the node is connected and tracks the Subnet. Omitted if subnetID is not the Primary Network.
    • signer is the node's BLS public key and proof of possession. Omitted if the validator doesn't have a BLS public key. Omitted if subnetID is not the Primary Network.
    • delegatorCount is the number of delegators on this validator. Omitted if subnetID is not the Primary Network.
    • delegatorWeight is total weight of delegators on this validator. Omitted if subnetID is not the Primary Network.
    • delegators is the list of delegators to this validator. Omitted if subnetID is not the Primary Network. Omitted unless nodeIDs specifies a single NodeID.
      • txID is the delegator transaction.
      • startTime is the Unix time when the delegator started.
      • endTime is the Unix time when the delegator stops.
      • weight is the amount of nAVAX 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

Note: An L1 Subnet can include both initial legacy PoA validators (before L1 conversion) and L1 validators. The response will include both types of validators.

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getCurrentValidators",
    "params": {
      "nodeIDs": ["NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD"]
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response (Primary Network):

{
  "jsonrpc": "2.0",
  "result": {
    "validators": [
      {
        "txID": "2NNkpYTGfTFLSGXJcHtVv6drwVU2cczhmjK2uhvwDyxwsjzZMm",
        "startTime": "1600368632",
        "endTime": "1602960455",
        "weight": "2000000000000",
        "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
        "validationRewardOwner": {
          "locktime": "0",
          "threshold": "1",
          "addresses": ["P-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
        },
        "delegationRewardOwner": {
          "locktime": "0",
          "threshold": "1",
          "addresses": ["P-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
        },
        "potentialReward": "117431493426",
        "delegationFee": "10.0000",
        "uptime": "0.0000",
        "connected": false,
        "delegatorCount": "1",
        "delegatorWeight": "25000000000",
        "delegators": [
          {
            "txID": "Bbai8nzGVcyn2VmeYcbS74zfjJLjDacGNVuzuvAQkHn1uWfoV",
            "startTime": "1600368523",
            "endTime": "1602960342",
            "weight": "25000000000",
            "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
            "rewardOwner": {
              "locktime": "0",
              "threshold": "1",
              "addresses": ["P-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"]
            },
            "potentialReward": "11743144774"
          }
        ]
      }
    ]
  },
  "id": 1
}

Example Response (L1):

{
  "jsonrpc": "2.0",
  "result": {
    "validators": [
      {
        "validationID": "2wTscvX3JUsMbZHFRd9t8Ywz2q9j2BmETg8cTvgUHgawjbSvZX",
        "nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
        "publicKey": "0x91951771ff32b1a985a4936592bce8512a986353c4c2eb5a0f12dbb76bda3a0a0c975e26413ff44c0ee9d8d689eff8ed",
        "remainingBalanceOwner": {
          "locktime": "0",
          "threshold": "1",
          "addresses": [
            "P-fuji1ywzvrftfqexh5g6qa9zyrytj6pqdfetza2hqln"
          ]
        },
        "deactivationOwner": {
          "locktime": "0",
          "threshold": "1",
          "addresses": [
            "P-fuji1ywzvrftfqexh5g6qa9zyrytj6pqdfetza2hqln"
          ]
        },
        "startTime": "1734034648",
        "weight": "20",
        "minNonce": "0",
        "balance": "8780477952"
      }
    ]
  },
  "id": 1
}

platform.getFeeConfig

Returns the dynamic fee configuration of the P-chain.

Signature:

platform.getFeeConfig() -> {
  weights: []uint64,
  maxCapacity: uint64,
  maxPerSecond: uint64,
  targetPerSecond: uint64,
  minPrice: uint64,
  excessConversionConstant: uint64
}
  • weights to merge fee dimensions into a single gas value
  • maxCapacity is the amount of gas the chain is allowed to store for future use
  • maxPerSecond is the amount of gas the chain is allowed to consume per second
  • targetPerSecond is the target amount of gas the chain should consume per second to keep fees stable
  • minPrice is the minimum price per unit of gas
  • excessConversionConstant is used to convert excess gas to a gas price

Example Call:

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

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "weights": [1, 1000, 1000, 4],
    "maxCapacity": 1000000,
    "maxPerSecond": 100000,
    "targetPerSecond": 50000,
    "minPrice": 1,
    "excessConversionConstant": 2164043
  },
  "id": 1
}

platform.getFeeState

Returns the current fee state of the P-chain.

Signature:

platform.getFeeState() -> {
  capacity: uint64,
  excess: uint64,
  price: uint64,
  timestamp: string
}

Example Call:

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

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "capacity": 973044,
    "excess": 26956,
    "price": 1,
    "timestamp": "2024-12-16T17:19:07Z"
  },
  "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.getL1Validator

Returns a current L1 validator.

Signature:

platform.getL1Validator({
    validationID: string,
}) -> {
    validationID: string,
    subnetID: string,
    nodeID: string,
    publicKey: string,
    remainingBalanceOwner: {
      locktime: string,
      threshold: string,
      addresses: string[]
    },
    deactivationOwner: {
      locktime: string,
      threshold: string,
      addresses: string[]
    },
    startTime: string,
    weight: string,
    minNonce: string,
    balance: string,
    height: string
}
  • validationID is the ID for L1 subnet validator registration transaction.
  • subnetID is the L1 this validator is validating.
  • nodeID is the node ID of the validator.
  • publicKey is the compressed BLS public key of the validator.
  • remainingBalanceOwner is an OutputOwners which includes a locktime, threshold, and an array of addresses. It specifies the owner that will receive any withdrawn balance.
  • deactivationOwner is an OutputOwners which includes a locktime, threshold, and an array of addresses. It specifies the owner that can withdraw the balance.
  • startTime is the unix timestamp, in seconds, of when this validator was added to the validator set.
  • weight is weight of this validator used for consensus voting and ICM.
  • minNonce is minimum nonce that must be included in a SetL1ValidatorWeightTx for the transaction to be valid.
  • balance is current remaining balance that can be used to pay for the validators continuous fee.
  • height is height of the last accepted block.

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getL1Validator",
    "params": {
      "validationID": ["9FAftNgNBrzHUMMApsSyV6RcFiL9UmCbvsCu28xdLV2mQ7CMo"]
    },
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "subnetID": "2DeHa7Qb6sufPkmQcFWG2uCd4pBPv9WB6dkzroiMQhd1NSRtof",
    "nodeID": "NodeID-7Xhw2mDxuDS44j42TCB6U5579esbSt3Lg",
    "validationID": "9FAftNgNBrzHUMMApsSyV6RcFiL9UmCbvsCu28xdLV2mQ7CMo",
    "publicKey": "0x900c9b119b5c82d781d4b49be78c3fc7ae65f2b435b7ed9e3a8b9a03e475edff86d8a64827fec8db23a6f236afbf127d",
    "remainingBalanceOwner": {
      "locktime": "0",
      "threshold": "0",
      "addresses": []
    },
    "deactivationOwner": {
      "locktime": "0",
      "threshold": "0",
      "addresses": []
    },
    "startTime": "1731445206",
    "weight": "49463",
    "minNonce": "0",
    "balance": "1000000000",
    "height": "3"
  },
  "id": 1
}

platform.getProposedHeight

Returns this node's current proposer VM height

Signature:

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

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getProposedHeight",
    "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.getMinStake

Get the minimum amount of tokens required to validate the requested Subnet and the minimum amount of tokens that can be delegated.

Signature:

platform.getMinStake({
  subnetID: string // optional
}) ->
{
  minValidatorStake : uint64,
  minDelegatorStake : uint64
}

Example Call:

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getMinStake",
    "params": {
        "subnetID":"11111111111111111111111111111111LpoYY"
    },
}' -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.getRewardUTXOs

Caution

Deprecated as of v1.9.12.

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.getStake

Caution

Deprecated as of v1.9.12.

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

Signature:

platform.getStake({
    addresses: []string,
    validatorsOnly: true or false
}) ->
{
    stakeds: string -> int,
    stakedOutputs:  []string,
    encoding: string
}
  • addresses are the addresses to get information about.
  • validatorsOnly can be either true or false. If true, will skip checking delegators for stake.
  • stakeds is a map from assetID to the amount 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-avax1pmgmagjcljjzuz2ve339dx82khm7q8getlegte"
          ],
        "validatorsOnly": true
    },
    "id": 1
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "staked": "6500000000000",
    "stakeds": {
      "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z": "6500000000000"
    },
    "stakedOutputs": [
      "0x000021e67317cbc4be2aeb00677ad6462778a8f52274b9d605df2591b23027a87dff00000007000005e96630e800000000000000000000000001000000011f1c933f38da6ba0ba46f8c1b0a7040a9a991a80dd338ed1"
    ],
    "encoding": "hex"
  },
  "id": 1
}

platform.getStakingAssetID

Retrieve an assetID for a Subnet’s staking asset.

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
}

Note

The AssetID for AVAX differs depending on the network you are on.

Mainnet: FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z

Testnet: U8iRqJoiJm8xZHAacmvYyZVwqQx6uDNtQeP3CQ6fcgQk3JqnK

platform.getSubnet

Get owners and info about the Subnet or L1.

Signature:

platform.getSubnet({
    subnetID: string
}) ->
{
    isPermissioned: bool,
    controlKeys: []string,
    threshold: string,
    locktime: string,
    subnetTransformationTxID: string,
    conversionID: string,
    managerChainID: string,
    managerAddress: string
}
  • subnetID is the ID of the Subnet to get information about. If omitted, fails.
  • threshold signatures from addresses in controlKeys are needed to make changes to a permissioned subnet. If the Subnet is not a PoA Subnet, then threshold will be 0 and controlKeys will be empty.
  • changes can not be made into the subnet until locktime is in the past.
  • subnetTransformationTxID is the ID of the transaction that changed the subnet into an elastic one, if it exists.
  • conversionID is the ID of the conversion from a permissioned Subnet into an L1, if it exists.
  • managerChainID is the ChainID that has the ability to modify this L1s validator set, if it exists.
  • managerAddress is the address that has the ability to modify this L1s validator set, if it exists.

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getSubnet",
    "params": {"subnetID":"Vz2ArUpigHt7fyE79uF3gAXvTPLJi2LGgZoMpgNPHowUZJxBb"},
    "id": 1
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/bc/P

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "isPermissioned": true,
    "controlKeys": [
      "P-fuji1ztvstx6naeg6aarfd047fzppdt8v4gsah88e0c",
      "P-fuji193kvt4grqewv6ce2x59wnhydr88xwdgfcedyr3"
    ],
    "threshold": "1",
    "locktime": "0",
    "subnetTransformationTxID": "11111111111111111111111111111111LpoYY",
    "conversionID": "11111111111111111111111111111111LpoYY",
    "managerChainID": "11111111111111111111111111111111LpoYY",
    "managerAddress": null
  },
  "id": 1
}

platform.getSubnets

Caution

Deprecated as of v1.9.12.

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. If the Subnet is not a PoA Subnet, then threshold will be 0 and controlKeys will be empty.

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.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 tokens staked on the requested Subnet.

Signature:

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

Primary Network Example

Example Call:

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

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "stake": "279825917679866811",
    "weight": "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,
}

Example Call:

curl -X POST --data '{
    "jsonrpc": "2.0",
    "method": "platform.getTx",
    "params": {
        "txID":"28KVjSw5h3XKGuNpJXWY74EdnGq4TUWvCgEtJPymgQTvudiugb",
        "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": {
        "networkID": 1,
        "blockchainID": "11111111111111111111111111111111LpoYY",
        "outputs": [],
        "inputs": [
          {
            "txID": "NXNJHKeaJyjjWVSq341t6LGQP5UNz796o1crpHPByv1TKp9ZP",
            "outputIndex": 0,
            "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
            "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
            "input": {
              "amount": 20824279595,
              "signatureIndices": [0]
            }
          },
          {
            "txID": "2ahK5SzD8iqi5KBqpKfxrnWtrEoVwQCqJsMoB9kvChCaHgAQC9",
            "outputIndex": 1,
            "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
            "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
            "input": {
              "amount": 28119890783,
              "signatureIndices": [0]
            }
          }
        ],
        "memo": "0x",
        "validator": {
          "nodeID": "NodeID-VT3YhgFaWEzy4Ap937qMeNEDscCammzG",
          "start": 1682945406,
          "end": 1684155006,
          "weight": 48944170378
        },
        "stake": [
          {
            "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
            "fxID": "spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ",
            "output": {
              "addresses": ["P-avax1tnuesf6cqwnjw7fxjyk7lhch0vhf0v95wj5jvy"],
              "amount": 48944170378,
              "locktime": 0,
              "threshold": 1
            }
          }
        ],
        "rewardsOwner": {
          "addresses": ["P-avax19zfygxaf59stehzedhxjesads0p5jdvfeedal0"],
          "locktime": 0,
          "threshold": 1
        }
      },
      "credentials": [
        {
          "signatures": [
            "0x6954e90b98437646fde0c1d54c12190fc23ae5e319c4d95dda56b53b4a23e43825251289cdc3728f1f1e0d48eac20e5c8f097baa9b49ea8a3cb6a41bb272d16601"
          ]
        },
        {
          "signatures": [
            "0x6954e90b98437646fde0c1d54c12190fc23ae5e319c4d95dda56b53b4a23e43825251289cdc3728f1f1e0d48eac20e5c8f097baa9b49ea8a3cb6a41bb272d16601"
          ]
        }
      ],
      "id": "28KVjSw5h3XKGuNpJXWY74EdnGq4TUWvCgEtJPymgQTvudiugb"
    },
    "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 (that is 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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5 and P-avax1d09qn852zcy03sfc9hay2llmn9hsgnw4tp3dv6.

curl -X POST --data '{
    "jsonrpc":"2.0",
    "id"     :1,
    "method" :"platform.getUTXOs",
    "params" :{
        "addresses":["P-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5", "P-avax1d09qn852zcy03sfc9hay2llmn9hsgnw4tp3dv6"],
        "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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "limit":5,
        "startIndex": {
            "address": "P-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
            "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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5"],
        "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-avax18jma8ppw3nhx5r4ap8clazz0dps7rv5ukulre5",
      "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|string],
        subnetID: string, // optional
    }
)
  • height is the P-Chain height to get the validator set at, or the string literal "proposed" to return the validator set at this node's ProposerVM height.
  • 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.getValidatorFeeConfig

Returns the validator fee configuration of the P-Chain.

Signature:

platform.getValidatorFeeConfig() -> {
  capacity: uint64,
  target: uint64,
  minPrice: uint64,
  excessConversionConstant: uint64
}
  • capacity is the maximum number of L1 validators the chain is allowed to have at any given time
  • target is the target number of L1 validators the chain should have to keep fees stable
  • minPrice is the minimum price per L1 validator
  • excessConversionConstant is used to convert excess L1 validators to a gas price

Example Call:

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

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "capacity": 20000,
    "target": 10000,
    "targetPerSecond": 50000,
    "minPrice": 512,
    "excessConversionConstant": 1246488515
  },
  "id": 1
}

platform.getValidatorFeeState

Returns the current validator fee state of the P-Chain.

Signature:

platform.getValidatorFeeState() -> {
  excess: uint64,
  price: uint64,
  timestamp: string
}

Example Call:

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

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "excess": 26956,
    "price": 512,
    "timestamp": "2024-12-16T17:19:07Z"
  },
  "id": 1
}

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.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
}
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