rpc_methods

Description#

Returns a list of supported RPC methods and the highest available version for each namespace. Call this after runtime upgrades to detect new custom APIs (e.g., SALP or Hyperbridge helpers).

Parameters#

This method does not take parameters.

Returns#

Field	Type	Description
`methods`	array	Array of method names
`version`	number	API version

Request Example#

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

Response Example#

{
  "jsonrpc": "2.0",
  "result": {
    "methods": [
      "system_chain",
      "system_health",
      "author_submitExtrinsic",
      "chain_getHeader",
      "state_getRuntimeVersion",
      "grandpa_roundState",
      "state_getStorage",
      "state_call"
    ],
    "version": 1
  },
  "id": 1
}

Code Examples#

Python
JavaScript

resp = requests.post(
    "https://api-bifrost-polkadot.n.dwellir.com/YOUR_API_KEY",
    headers={"Content-Type": "application/json"},
    data=json.dumps({
        "jsonrpc": "2.0",
        "method": "rpc_methods",
        "params": [],
        "id": 1
    })
)
print(resp.json()["result"]["methods"][:5])

const methods = await api.rpc.rpc.methods();
console.log(methods.toHuman());

Tips#

Filter the methods array to detect custom namespaces (those prefixed with bifrost, salp, hyperbridge, etc.).
Pair with state_getMetadata to fetch type definitions for custom runtime APIs.