rpc_methods - JSON-RPC Method

Description#

Returns the list of RPC methods supported by the connected Enjin Matrix node. This is useful for capability detection and for confirming that chain-specific namespaces (e.g., fuelTanks_*, ismp_*, multitokens_*) are available.

Parameters#

This method does not require parameters.

Returns#

Field	Type	Description
`methods`	array	Array of method names (strings)

Request Example#

{
  "jsonrpc": "2.0",
  "method": "rpc_methods",
  "params": [],
  "id": 1
}

Response Example (excerpt)#

{
  "jsonrpc": "2.0",
  "result": {
    "methods": [
      "account_nextIndex",
      "author_pendingExtrinsics",
      "author_submitExtrinsic",
      "chain_getHeader",
      "chain_getFinalizedHead",
      "chain_subscribeNewHeads",
      "childstate_getStorage",
      "fuelTanks_selectFuelTank",
      "ismp_queryChallengePeriod",
      "multitokens_queryClaimableCollections",
      "offchain_localStorageGet",
      "payment_queryInfo",
      "rpc_methods",
      "state_call",
      "state_getMetadata",
      "state_traceBlock",
      "system_health",
      "transactionWatch_v1_submitAndWatch",
      "transaction_v1_broadcast",
      "unsubscribe_newHead"
    ]
  },
  "id": 1
}

Code Examples#

cURL
JavaScript

curl https://api-enjin-matrixchain.n.dwellir.com/YOUR_API_KEY \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "rpc_methods",
    "params": [],
    "id": 1
  }'

const { methods } = await fetch('https://api-enjin-matrixchain.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ jsonrpc: '2.0', method: 'rpc_methods', params: [], id: 1 })
}).then((res) => res.json()).then((body) => body.result);

console.log(methods.filter((m) => m.startsWith('fuelTanks_')));

Notes#

fuelTanks_*, multitokens_*, and ismp_* provide Matrix-specific functionality such as fee sponsorship, NFT claimables, and interoperability primitives.
Some experimental RPCs may require custom type registries (API/INIT: RPC methods not decorated warnings in Polkadot.js). Extend the API with type definitions if they are omitted.
Use this method during application startup to log the RPC surface area and detect configuration drift between nodes.