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Info API

This API can be used to access basic information about the node.

Format

This API uses the json 2.0 RPC format. For more information on making JSON RPC calls, see here.

Endpoint

/ext/info

Methods

info.acps

Returns peer preferences for Avalanche Community Proposals (ACPs)

Signature:

info.acps() -> {
acps: map[uint32]{
supportWeight: uint64
supporters: set[string]
objectWeight: uint64
objectors: set[string]
abstainWeight: uint64
}
}

Example Call:

curl -sX POST --data '{
"jsonrpc":"2.0",
"id" :1,
"method" :"info.acps",
"params" :{}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/info

Example Response:

{
"jsonrpc": "2.0",
"result": {
"acps": {
"23": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"24": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"25": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"30": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"31": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"41": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
},
"62": {
"supportWeight": "0",
"supporters": [],
"objectWeight": "0",
"objectors": [],
"abstainWeight": "161147778098286584"
}
}
},
"id": 1
}

info.isBootstrapped

Check whether a given chain is done bootstrapping

Signature:

info.isBootstrapped({chain: string}) -> {isBootstrapped: bool}

chain is the ID or alias of a chain.

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"result": {
"isBootstrapped": true
},
"id": 1
}

info.getBlockchainID

Given a blockchain’s alias, get its ID. (See admin.aliasChain.)

Signature:

info.getBlockchainID({alias:string}) -> {blockchainID:string}

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"blockchainID": "sV6o671RtkGBcno1FiaDbVcFv2sG5aVXMZYzKdP4VQAWmJQnM"
}
}

info.getNetworkID

Get the ID of the network this node is participating in.

Signature:

info.getNetworkID() -> {networkID:int}

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"networkID": "2"
}
}

Network ID of 1 = Mainnet Network ID of 5 = Fuji (testnet)

info.getNetworkName

Get the name of the network this node is participating in.

Signature:

info.getNetworkName() -> {networkName:string}

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"networkName": "local"
}
}

info.getNodeID

Get the ID, the BLS key, and the proof of possession(BLS signature) of this node.

info

This endpoint set is for a specific node, it is unavailable on the public server.

Signature:

info.getNodeID() -> {
nodeID: string,
nodePOP: {
publicKey: string,
proofOfPossession: string
}
}
  • nodeID Node ID is the unique identifier of the node that you set to act as a validator on the Primary Network.
  • nodePOP is this node's BLS key and proof of possession. Nodes must register a BLS key to act as a validator on the Primary Network. Your node's POP is logged on startup and is accessible over this endpoint.
    • publicKey is the 48 byte hex representation of the BLS key.
    • proofOfPossession is the 96 byte hex representation of the BLS signature.

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"result": {
"nodeID": "NodeID-5mb46qkSBj81k9g9e4VFjGGSbaaSLFRzD",
"nodePOP": {
"publicKey": "0x8f95423f7142d00a48e1014a3de8d28907d420dc33b3052a6dee03a3f2941a393c2351e354704ca66a3fc29870282e15",
"proofOfPossession": "0x86a3ab4c45cfe31cae34c1d06f212434ac71b1be6cfe046c80c162e057614a94a5bc9f1ded1a7029deb0ba4ca7c9b71411e293438691be79c2dbf19d1ca7c3eadb9c756246fc5de5b7b89511c7d7302ae051d9e03d7991138299b5ed6a570a98"
}
},
"id": 1
}

info.getNodeIP

Get the IP of this node.

info

This endpoint set is for a specific node, it is unavailable on the public server.

Signature:

info.getNodeIP() -> {ip: string}

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"result": {
"ip": "192.168.1.1:9651"
},
"id": 1
}

info.getNodeVersion

Get the version of this node.

Signature:

info.getNodeVersion() -> {
version: string,
databaseVersion: string,
gitCommit: string,
vmVersions: map[string]string,
rpcProtocolVersion: string,
}

where:

  • version is this node's version
  • databaseVersion is the version of the database this node is using
  • gitCommit is the Git commit that this node was built from
  • vmVersions is map where each key/value pair is the name of a VM, and the version of that VM this node runs
  • rpcProtocolVersion is the RPCChainVM protocol version

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"result": {
"version": "avalanche/1.9.1",
"databaseVersion": "v1.4.5",
"rpcProtocolVersion": "18",
"gitCommit": "79cd09ba728e1cecef40acd60702f0a2d41ea404",
"vmVersions": {
"avm": "v1.9.1",
"evm": "v0.11.1",
"platform": "v1.9.1"
}
},
"id": 1
}

info.getTxFee

Get the fees of the network.

Signature:

info.getTxFee() ->
{
txFee: uint64,
createAssetTxFee: uint64,
createSubnetTxFee: uint64,
transformSubnetTxFee: uint64,
createBlockchainTxFee: uint64,
addPrimaryNetworkValidatorFee: uint64,
addPrimaryNetworkDelegatorFee: uint64,
addSubnetValidatorFee: uint64,
addSubnetDelegatorFee: uint64
}
  • txFee is the default fee for making transactions.
  • createAssetTxFee is the fee for creating a new asset.
  • createSubnetTxFee is the fee for creating a new Subnet.
  • transformSubnetTxFee is the fee for converting a PoA Subnet into a PoS Subnet.
  • createBlockchainTxFee is the fee for creating a new blockchain.
  • addPrimaryNetworkValidatorFee is the fee for adding a new primary network validator.
  • addPrimaryNetworkDelegatorFee is the fee for adding a new primary network delegator.
  • addSubnetValidatorFee is the fee for adding a new Subnet validator.
  • addSubnetDelegatorFee is the fee for adding a new Subnet delegator.

All fees are denominated in nAVAX.

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"txFee": "1000000",
"createAssetTxFee": "10000000",
"createSubnetTxFee": "1000000000",
"transformSubnetTxFee": "10000000000",
"createBlockchainTxFee": "1000000000",
"addPrimaryNetworkValidatorFee": "0",
"addPrimaryNetworkDelegatorFee": "0",
"addSubnetValidatorFee": "1000000",
"addSubnetDelegatorFee": "1000000"
}
}

info.getVMs

Get the virtual machines installed on this node.

info

This endpoint set is for a specific node, it is unavailable on the public server.

Signature:

info.getVMs() -> {
vms: map[string][]string
}

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"result": {
"vms": {
"jvYyfQTxGMJLuGWa55kdP2p2zSUYsQ5Raupu4TW34ZAUBAbtq": ["avm"],
"mgj786NP7uDwBCcq6YwThhaN8FLyybkCa4zBWTQbNgmK6k9A6": ["evm"],
"qd2U4HDWUvMrVUeTcCHp6xH3Qpnn1XbU5MDdnBoiifFqvgXwT": ["nftfx"],
"rWhpuQPF1kb72esV2momhMuTYGkEb1oL29pt2EBXWmSy4kxnT": ["platform"],
"rXJsCSEYXg2TehWxCEEGj6JU2PWKTkd6cBdNLjoe2SpsKD9cy": ["propertyfx"],
"spdxUxVJQbX85MGxMHbKw1sHxMnSqJ3QBzDyDYEP3h6TLuxqQ": ["secp256k1fx"]
}
},
"id": 1
}

info.peers

Get a description of peer connections.

Signature:

info.peers({
nodeIDs: string[] // optional
}) ->
{
numPeers: int,
peers:[]{
ip: string,
publicIP: string,
nodeID: string,
version: string,
lastSent: string,
lastReceived: string,
benched: string[],
observedUptime: int,
observedSubnetUptime: map[string]int,
}
}
  • nodeIDs is an optional parameter to specify what NodeID's descriptions should be returned. If this parameter is left empty, descriptions for all active connections will be returned. If the node is not connected to a specified NodeID, it will be omitted from the response.
  • ip is the remote IP of the peer.
  • publicIP is the public IP of the peer.
  • nodeID is the prefixed Node ID of the peer.
  • version shows which version the peer runs on.
  • lastSent is the timestamp of last message sent to the peer.
  • lastReceived is the timestamp of last message received from the peer.
  • benched shows chain IDs that the peer is being benched.
  • observedUptime is this node's primary network uptime, observed by the peer.
  • observedSubnetUptime is a map of Subnet IDs to this node's Subnet uptimes, observed by the peer.

Example Call:

curl -X POST --data '{
"jsonrpc":"2.0",
"id" :1,
"method" :"info.peers",
"params": {
"nodeIDs": []
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/info

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"numPeers": 3,
"peers": [
{
"ip": "206.189.137.87:9651",
"publicIP": "206.189.137.87:9651",
"nodeID": "NodeID-8PYXX47kqLDe2wD4oPbvRRchcnSzMA4J4",
"version": "avalanche/1.9.4",
"lastSent": "2020-06-01T15:23:02Z",
"lastReceived": "2020-06-01T15:22:57Z",
"benched": [],
"observedUptime": "99",
"observedSubnetUptimes": {},
"trackedSubnets": [],
"benched": []
},
{
"ip": "158.255.67.151:9651",
"publicIP": "158.255.67.151:9651",
"nodeID": "NodeID-C14fr1n8EYNKyDfYixJ3rxSAVqTY3a8BP",
"version": "avalanche/1.9.4",
"lastSent": "2020-06-01T15:23:02Z",
"lastReceived": "2020-06-01T15:22:34Z",
"benched": [],
"observedUptime": "75",
"observedSubnetUptimes": {
"29uVeLPJB1eQJkzRemU8g8wZDw5uJRqpab5U2mX9euieVwiEbL": "100"
},
"trackedSubnets": [
"29uVeLPJB1eQJkzRemU8g8wZDw5uJRqpab5U2mX9euieVwiEbL"
],
"benched": []
},
{
"ip": "83.42.13.44:9651",
"publicIP": "83.42.13.44:9651",
"nodeID": "NodeID-LPbcSMGJ4yocxYxvS2kBJ6umWeeFbctYZ",
"version": "avalanche/1.9.3",
"lastSent": "2020-06-01T15:23:02Z",
"lastReceived": "2020-06-01T15:22:55Z",
"benched": [],
"observedUptime": "95",
"observedSubnetUptimes": {},
"trackedSubnets": [],
"benched": []
}
]
}
}

info.uptime

Returns the network's observed uptime of this node. This is the only reliable source of data for your node's uptime. Other sources may be using data gathered with incomplete (limited) information.

Signature:

info.uptime({
subnetID: string // optional
}) ->
{
rewardingStakePercentage: float64,
weightedAveragePercentage: float64
}
  • subnetID is the Subnet to get the uptime of. If not provided, returns the uptime of the node on the primary network.

  • rewardingStakePercentage is the percent of stake which thinks this node is above the uptime requirement.

  • weightedAveragePercentage is the stake-weighted average of all observed uptimes for this node.

Example Call:

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

Example Response:

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"rewardingStakePercentage": "100.0000",
"weightedAveragePercentage": "99.0000"
}
}

Example Subnet Call

curl -X POST --data '{
"jsonrpc":"2.0",
"id" :1,
"method" :"info.uptime",
"params" :{
"subnetID":"29uVeLPJB1eQJkzRemU8g8wZDw5uJRqpab5U2mX9euieVwiEbL"
}
}' -H 'content-type:application/json;' 127.0.0.1:9650/ext/info

Example Subnet Response

{
"jsonrpc": "2.0",
"id": 1,
"result": {
"rewardingStakePercentage": "74.0741",
"weightedAveragePercentage": "72.4074"
}
}

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