Unverified50% confidenceFactExact time
Among JSON-RPC standard error codes, -32700 indicates a parse error, -32601 indicates method not found, and -32602 indicates invalid params.
1
Sources
50%
Confidence
Long-term
Relevance
10/28/2026
First Seen
Sources
Building an MCP Server from Scratch: Let AI Apps Call Your Agent Tools
youtubeResearch Treats10/28/2026
Related Entities
Related Claims
UnverifiedA protocol error means the request itself is malformed (e.g., calling a non-existent tool name) and is returned as a standard JSON-RPC error.74% similarUnverifiedDevelopers should by default encapsulate business-logic-level errors (invalid parameters, non-existent resources, insufficient permissions, etc.) as tool errors; only genuine protocol violations should trigger a JSON-RPC error response.67% similarUnverifiedFor LLM APIs, retryable errors include 429, 5xx and timeouts, while non-retryable errors include 400 parameter errors and 401 authentication failures.65% similarUnverifiedv3.22.1 fixes an issue where error messages were missing upon authentication failure (PR #3993, related issue #3962).65% similarUnverified使用无效的测试API Key会返回401鉴权失败错误61% similar
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