OpenAI Adds WebMCP Support to ChatGPT Desktop App's Built-in Browser

OpenAI has officially announced WebMCP support for the built-in browser in the ChatGPT desktop app and ChatGPT Sites. This allows ChatGPT or Codex to directly discover and use tools exposed by compatible websites when visiting them, thereby completing user tasks. Previously, agents relied on reading webpages or navigating menus to interpret interfaces, which was slow and prone to errors; WebMCP addresses these issues by providing a structured list of actions.

Key Changes and Support

• Improved Speed and Accuracy: Agents directly invoke structured actions provided by websites, such as search, inventory checks, cart updates, bookings, and trial starts.
• Enhanced Co-browsing: The entity reaching a website expands to include humans, or humans and agents browsing together.
• Ecosystem Collaboration: Jointly advancing the WebMCP Challenge with participants including Google Chrome, Cloudflare, Shopify, Vercel, Render, and Netlify.

Website Operator Perspective

Exposing tools is merely the technical starting point; website teams must design, test, and understand the agent experience. On WebMCP.com, tools can be generated directly based on website scans or codebases, and the generated tools can be managed and refined within the AgentLane workspace.