ONonkernel
Browser WebMCP

Discover WebMCP tools across the browser

Changed on

Returns a snapshot of native and custom WebMCP tools available across every open tab and embedded frame in the browser. Each tool includes an opaque tool_ref for invoking that exact live registration, nested tool metadata, and source information. Custom tools include their generated ID, namespace, and CDP target_id in source. Tools disappear when their document closes or navigates away. Use exclude_custom to return only page-provided tools.

get/browsers/{id_or_name}/webmcp/tools

Request

  • Base URL
    https://api.onkernel.com
  • URL
    https://api.onkernel.com/browsers/{id_or_name}/webmcp/tools
  • Auth
    HTTP bearer

Path parameters

id_or_namestring required

Browser session ID or name

Query parameters

exclude_customboolean

Exclude custom tools when true.

Response

Current browser-wide WebMCP tool snapshot

Changes

  • 743e00322e20Revision changes
    • breaking

      removed the required property // from the response with the status

    • breaking

      removed the required property // from the response with the status

    • breaking

      removed the required property // from the response with the status

    • warning

      removed the optional property // from the response with the status

    • info

      added the new optional query request parameter exclude_custom

    • info

      added the optional property /// to the response with the status

    • info

      added the optional property /// to the response with the status

    • info

      added the required property // to the response with the status

  • 8a0b0be14e94Revision changes
    • info

      endpoint added