Getting Started
Claude API basics and setup
Claude Code Domestic Access Tutorial (2026 latest)
5 minutes in the domestic network directly connected to the use of Claude Code: no need for overseas credit cards and scientific Internet access, support Alipay / WeChat recharge. Includes installation, configuration, model switching, common error troubleshooting tutorials.
How to Verify If Your Claude API Is Real: A Complete Guide to Model Fingerprint Detection
When using a third-party proxy or wrapper service, how can you confirm the underlying model is actually Claude? This article introduces 5 systematic detection methods to help you verify model authenticity and identify wrapping layers.
Claude API Error Handbook (2026): How to Fix 401, 429, 529, and Other Common Failures
The 6 most common Claude API errors — with real response bodies and step-by-step fixes for Python, curl, Cherry Studio, and Cursor.