Launching today
WebMCP Toolbench
See and test what AI agents can do on your site
1 follower
See and test what AI agents can do on your site
1 follower
A free Chrome side panel for developers building WebMCP tools. Inspect every tool on a page, lint its schema and description, run it by hand, and watch a real AI agent use it with your own key or a local model. No account, no analytics.
Launch Team
Render Sandboxes: a computer for every agentIsolated compute, persistent state and a real filesystem
Promoted
Hey Product Hunt! I'm Shubham, the maker of WebMCP Toolbench.
Websites are starting to expose "tools" to AI agents through WebMCP, a new web standard now in Chrome. Instead of an agent clicking around your UI, your site tells it exactly what it can do: search the menu, add to cart, book a table.
But building those tools blind is hard. Toolbench is the debugger I wanted:
🔍 See every tool on a page, including inside iframes
✅ Lint schemas and descriptions before an agent trips over them
▶️ Run tools by hand, or let a real model use them (bring your own key, or a local model)
✏️ Try a different description or schema without redeploying
It's free, with no account and no tracking. Your keys never leave your browser.
To try it: Chrome 155+, turn on chrome://flags/#enable-webmcp-testing, then open the demo café: https://webmcp-toolbench.solvemybizz.org/demo/
I'd love your feedback: what would make this part of your workflow?