How to Troubleshoot Claude API 400? A Comparison of Four Parameter Interception Categories

This article addresses troubleshooting Claude API 400 invalid_request_error by dissecting four causes—sampling parameters, thinking signatures, compatibility layer default values, and tool invocation—and provides a hierarchical decision-making process for deletion, pass-through, and completion, along with a regression verification checklist.

How to Pass Thinking History in Multi-Turn Conversations with OpenAI SDK Compatibility? Tool Call Checklist

In OpenAI SDK-compatible mode, multi-turn conversations and tool calls must return the assistant message's content, reasoning_content, and tool_calls verbatim, with tool_call_id strictly paired with tool_calls[].id; omitting any of these can cause errors or abnormal behavior.

How to Change OpenAI base_url: Three Ways and Error Reference

This article explains how to configure OpenAI base_url in Python, Node, and curl, clarifying the /v1 suffix and priority, and uses an error comparison table to solve common issues like 404 and 401.

How to Troubleshoot AI API 429 Errors? A Guide to Classifying Four Causes and Retry Backoff

Learn how to diagnose AI API 429 errors by classifying four causes and implementing effective retry backoff strategies.