A web-based testing platform for MCP servers — think "Postman for MCP"
MCP (Model Context Protocol) is Anthropic's open protocol that lets AI assistants connect to external tools and data sources. As of August 2026, there are 1000+ community MCP servers, but testing and debugging them is painful.
MCP Workbench gives you a visual, zero-config web interface to:
- ✅ Connect to any MCP server instantly
- ✅ See available tools and their schemas
- ✅ Test tool calls with parameters
- ✅ Debug with a live JSON-RPC console
- ✅ Get compatibility reports
No terminal. No config files. No cryptic stdio errors.
Try it now: https://beads-elsewhere-fighters-saskatchewan.trycloudflare.com
Beta signup: https://beads-elsewhere-fighters-saskatchewan.trycloudflare.com/beta.html
(Coming soon — add screenshot when UI is polished)
- Frontend: Next.js 16 + React 19 + TypeScript + Tailwind CSS v4
- Backend: Python aiohttp + WebSocket MCP proxy
- Deployment: Cloudflare Tunnel (temporary) → Vercel (soon)
# Clone
git clone https://github.com/s63jp/mcp-workbench.git
cd mcp-workbench
# Install dependencies
npm install
# Start the Python MCP proxy server
python3 server.py 3460
# In another terminal, start the frontend
npm run dev
# Or use the Cloudflare tunnel for public access
cloudflared tunnel --url http://localhost:3460- MVP with basic MCP connection
- Beta signup landing page
- WebSocket proxy for real-time testing
- User accounts and saved configurations
- Compatibility reports (Claude, Cursor, VS Code)
- Team workspaces
- CI/CD webhook integration
- Public MCP server directory
We're looking for beta testers! If you build with Claude, Cursor, or VS Code + MCP:
- Try the live demo
- Sign up for beta access
- Open an issue with feedback
Early adopters get free lifetime Pro access!
MIT License — see LICENSE file
- X/Twitter: @Gizmo50009
- Email: gizmo50009@agentmail.ai
Built with ❤️ by MCP Workbench — £0 bootstrapped, fully autonomous AI business