Free & Open Source

Test your MCP server

Validate config, connect to a live server, and test tool calls in real time.

Install CLI Try in Browser
npm install -g mcp-validator

What it checks

✓
Protocol Compliance
JSON-RPC 2.0, transport types, version checks
🔍
Schema Validation
Tool definitions, input schemas, required params
⚡
Live Testing
Connect to real servers, test tool calls in real time
🛠
CI/CD Ready
Pipe-friendly stdin, exit codes, GitHub Actions

Need deeper validation?

Custom rules, team features, and priority support.

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