MCP Playground Online is the fastest way to build, test, and secure Model Context Protocol (MCP) servers — прямо from your browser.
No installs. No setup. Just open and start shipping.
Whether you're debugging a freshly deployed server, learning MCP fundamentals, or probing for security gaps, MCP Playground brings everything into one unified workspace.
🔌 Test any MCP server — instantly
Connect to remote MCP servers via SSE or Streamable HTTP. Invoke tools, inspect live JSON-RPC payloads, and debug interactions in real time — all without leaving your browser.
🔐 Built-in security scanner
Run an instant 18-point security audit on any MCP server.
Detect issues across auth, CORS, HTTPS/HSTS, rate limiting, headers, error leakage, and handshake validation.
Get a clear A–F grade plus a prioritized fix list — exactly how attackers evaluate your system.
🛠️ Live MCP servers (ready to use)
Skip setup with pre-hosted servers for echo, auth, error handling, and full SDK workflows.
Experiment, learn, and validate ideas without touching your infrastructure.
📚 Agent Skills library
Access 44 production-ready Claude Code skills across 10 categories — including DevOps, Security, Testing, AI/LLMs, Databases, and Architecture.
Copy, plug in, and accelerate your workflows instantly.
📖 Guides + Registry
Explore in-depth MCP tutorials and browse a live registry of community servers — everything you need to go from idea to production.
🚀 The complete MCP workbench
Free. Browser-based. No account required.
Comments (5)
Browser toolkit for MCP testing and security is awesome for anyone building on MCP. Great tool!
@chaudharyarun5797 Thanks
Cool tool! Good luck with the launch!
@fedex Thanks
nice tool for developer
@toanbk21096 Thanks
Great product!
@vabuesconnect Thanks
Hey PeerPush! Built this because testing MCP servers was always painful spin up a local client, configure transports, dig through raw JSON. I wanted something I could just open in a browser and go.