Implement WebMCP

Expose site tools to AI agents via the browser using the WebMCP API (Chrome blog).

Requirements

  • Call navigator.modelContext.registerTool() for each tool you want to expose
  • Each tool needs name, description, inputSchema (JSON Schema), and an execute callback
  • Tools should expose your site's key actions (search, navigation, data retrieval)
  • Use an AbortController signal to unregister tools when no longer needed
  • The API is detected by loading the page in a browser — ensure the script runs on page load

Validate

POST https://isitagentready.com/api/scan
Content-Type: application/json

{"url": "https://YOUR-SITE.com"}

Check that checks.discovery.webMcp.status is "pass".