`WebMCP.invokeTool`

Invokes a registered tool.

Domain: WebMCP experimental

Parameters

Name	Type	Description
`frameId`	`Page.FrameId`	Frame in which to invoke the tool.
`toolName`	`string`	Name of the tool to invoke.
`input`	`object`	Input parameters for the tool, matching the tool's inputSchema.

Returns

Name	Type	Description
`invocationId`	`string`	Unique identifier for this invocation. Response is sent before tool events.

Example Request

{
  "id": 1,
  "method": "WebMCP.invokeTool",
  "params": {
    "frameId": "ABC123DEF456",
    "toolName": "toolName-value",
    "input": {}
  }
}

Example Response

{
  "id": 1,
  "result": {
    "invocationId": "invocationId-value"
  }
}

Usage in Node.js

const result = await send('WebMCP.invokeTool', {"frameId": "ABC123DEF456", "toolName": "toolName-value", "input": {}});
console.log(result);
// {"invocationId": "invocationId-value"}