Built on the official MCP SDK · Open Source
Test any remote MCP server. Right in your browser.
The interactive playground for Model Context Protocol. Paste a server URL, inspect tools, and run them live — no installation needed. Bring your own API key for authenticated servers.
Works with any Streamable HTTP, SSE, or WebSocket endpoint. Browse 801+ servers in the registry →
mcpplayground.tech/playground?url=https://demo.example.com/mcp
demo-mcp-serverv1.0.0Streamable HTTP4 tools · 2 resources · 1 prompt
TOOLS · 4
greet
add
get_weather
batch_process
HISTORY
✓greet
✓add
get_weather
Fetches real-time weather for a location
location.city*string
San Francisco
unitsenum
Run get_weather
801+
Servers in Registry
19
Lint Rules
0
Installation Required
AGPL v3
Open Source License
How it works
From URL to running tools in under 30 seconds
STEP 01
Paste a URL
Enter any remote MCP server endpoint. Supports Streamable HTTP, SSE, and WebSocket transports.
STEP 02
Explore Tools
Instantly see every tool, resource, and prompt the server exposes — with full JSON Schema.
STEP 03
Run Live
Auto-generated forms from JSON Schema. Fill in parameters and execute tools in real-time.
Everything you need to test MCP servers
A full-featured toolkit for the MCP ecosystem — inspect, lint, execute, and share.
Inspect & Execute
Connect to any remote MCP server. Browse tools, resources, and prompts — then run them live with auto-generated forms.
Schema Linter
Grade any MCP server A–F. 15+ lint rules check tool descriptions, JSON Schema completeness, and token cost estimates.
Quality Dashboard
Try it right now — no account needed
These servers are publicly accessible. Click one to inspect its tools and run them live.
For Server Authors
Add a "Try it" badge to your README
Let your users test your MCP server without any setup. One click from your docs to a live interactive playground.
← looks like thisAdd to your README.md:
[](https://mcpplayground.tech/playground?url=YOUR_SERVER_URL)
For Developers
Lint MCP servers in CI
@samsec/mcpx brings the MCP Playground linter to your terminal and CI pipelines. Enforce grade thresholds, catch token bloat, and fail deployments when schema quality drops — just like ESLint for your MCP server.
# one-off, no install
npx @samsec/mcpx lint https://your-server.com/mcp
# gate CI on grade
mcpx lint https://your-server.com/mcp --min-grade B
# catch regressions on every PR
mcpx diff
Ready to explore the MCP ecosystem?
Connect your first MCP server, check the quality leaderboard, or explore the registry.