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  "title": "MCP Error Code -32600 Invalid Request Troubleshooting Guide",
  "summary": "Detailed guide on MCP JSON-RPC -32600 invalid request error, including JSON format validation, request structure checks, and common error scenarios.",
  "content": "# MCP-JSONRPC-32600 Invalid Request Troubleshooting Guide\n\n## Overview\n\n**MCP-JSONRPC-32600** indicates the JSON-RPC request sent is not a valid Request object [^1]. This is a protocol-level error that typically occurs when the request format doesn't conform to the specification.\n\n## Error Response Format\n\n```json\n{\n  \"jsonrpc\": \"2.0\",\n  \"id\": null,\n  \"error\": {\n    \"code\": -32600,\n    \"message\": \"Invalid Request\",\n    \"data\": {\n      \"reason\": \"missing jsonrpc field\"\n    }\n  }\n}\n```\n\n## Common Causes and Solutions\n\n### Cause 1: Missing jsonrpc Field\n\n**Solution:** Ensure the request includes `\"jsonrpc\": \"2.0\"` field [^2].\n\n### Cause 2: Missing method Field\n\n**Solution:** Ensure the request includes a valid `method` field.\n\n### Cause 3: id Field Format Error\n\n**Solution:** The `id` field should be a string or number, preferably a string [^3].\n\n### Cause 4: Invalid JSON Format\n\n**Solution:** Validate JSON syntax, check quotes and brackets.\n\n## Request Structure Validation\n\nA valid JSON-RPC 2.0 request must include:\n- `jsonrpc`: \"2.0\"\n- `method`: string\n- `id`: string or number (optional, for requests requiring response)\n\n## Reference Sources\n\n[^1]: [JSON-RPC 2.0 Specification](https://www.jsonrpc.org/specification) - Official protocol specification defining -32600 error code\n[^2]: [MCP Error Codes](https://www.mcpevals.io/blog/mcp-error-codes) - MCP error codes detailed guide\n[^3]: [Stack Overflow - Json RPC error 32600](https://stackoverflow.com/questions/9988733/json-rpc-error-32600) - Community discussion suggesting string format for id",
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      "question": "What is the difference between -32600 and -32700?",
      "answer": "-32700 is JSON parse error (syntax error), -32600 is valid JSON but doesn't conform to JSON-RPC request structure."
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      "id": "qa_002",
      "question": "How to validate JSON-RPC request format?",
      "answer": "Use JSON Schema validation or manually check required fields: jsonrpc, method, id."
    },
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      "id": "qa_003",
      "question": "Can the id field be omitted?",
      "answer": "Yes, omitting id indicates a notification, server won't return a response."
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