Try It Now Dialog

engine_exchangeCapabilities

---

Method

• JSON-RPC method name: engine_exchangeCapabilities
• JSON-RPC version: 2.0

Parameters

Name	Type	Required	Description
Consensus client methods	string[]	yes

Parameter schema

{
  "Consensus client methods": {
    "required": true,
    "schema": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}

Result

• Name: Execution client methods
• Type: string[]

Result schema

{
  "type": "array",
  "items": {
    "type": "string"
  }
}

Positional parameters

Parameter order:

1. Consensus client methods

---

Errors

This method may return JSON-RPC standard errors (e.g. -32600, -32601, -32602, -32603) as well as application-specific errors.

TODO: Document method-specific error codes and conditions.

Named Parameters

{
  "jsonrpc": "2.0",
  "method": "engine_exchangeCapabilities",
  "params": {
    "Consensus client methods": [
      "string"
    ]
  },
  "id": 1
}

Successful Response

{
  "jsonrpc": "2.0",
  "result": [
    "string"
  ],
  "id": 1
}

Positional Parameters

{
  "jsonrpc": "2.0",
  "method": "engine_exchangeCapabilities",
  "params": [
    [
      "string"
    ]
  ],
  "id": 2
}

Successful Response

{
  "jsonrpc": "2.0",
  "result": [
    "string"
  ],
  "id": 2
}