Model Context Protocol (MCP) 1 · Testing and debugging
Call a tool with a raw request
The JSON-RPC message that calls a tool with arguments.
{"jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": {"name": "add", "arguments": {"a": 2, "b": 3}}}
Official Model Context Protocol (MCP) 1 documentation
More testing and debugging commands
- Inspect a Python server
- Inspect a Node.js server
- List tools with a raw request
- Read Claude Desktop's MCP logs (macOS)
All testing and debugging commands · Model Context Protocol (MCP) 1 cheatsheet