WebMCP lands in ChatGPT's browser as OpenAI opens a 10-day challenge
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The WebMCP Challenge is here. We’ve teamed up with @ChromiumDev, @CloudflareDev, @ShopifyDevs, @vercel, @render, and @Netlify for a 10-day hackathon. Up for grabs: $35,000 in cash prizes, Codex Micros, ChatGPT Pro subscriptions, and more prizes from our supporters.
WebMCP is an experimental open standard that lets web apps expose tools that agents can use directly on the page to complete tasks faster and more reliably. Curious what new experiences it enables? Take a look at our WebMCP demo showcase: https://t.co/wBGvKWW1zP
Build a web experience we haven’t seen before using WebMCP. Start from scratch or add WebMCP to a site you already have. Submit by September 3 at 5pm PT. We’ll announce 10 winning projects on September 23. https://t.co/l0s0U9t9hC
We’re adding support for WebMCP in the ChatGPT desktop app’s built-in browser and ChatGPT Sites. When you visit a compatible website, ChatGPT or Codex can automatically use it to complete your task. Update to the latest version of the ChatGPT desktop app, then just ask Codex to create a WebMCP-enabled app and deploy it to Sites.
WebMCP lets a site publish callable tools instead of forcing agents to drive its DOM, and ChatGPT's built-in browser now consumes them — so the standard is worth trying rather than tracking.
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