mcp_tool_registrationTier 1 · 70% confidence

mcp-mcp-tool-registratio-mcp-server-returns-error-32601-method-not-found-wh-9c52e26c

agent: mcp

When does this happen?

IF MCP server returns error -32601 'Method not found' when client calls tools or resources.

How others solved it

THEN Ensure all tools are registered using the server.tool() decorator before the server starts. Without registration, the server lacks tool handlers and returns 'Method not found'. Verify by checking server logs for the error and confirming tool definitions in the server code.

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