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

JavaScript

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

Python

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])

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.