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API Troubleshooting
#DeepSeek API#429#API errors

DeepSeek API Error Guide: Fix 401, 402, 429 and 5xx Responses

A practical diagnostic guide to DeepSeek API errors: distinguish 401 authentication problems, 402 balance issues, 429 rate limits, and 5xx upstream failures, with safe retry patterns and observability tips.

DeepSeek-V4.io Editorial Team
12 min read

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About the Author

DeepSeek-V4.io Editorial Team publishes independent setup guides and product research for DeepSeek-V4.io. DeepSeek-V4.io is not affiliated with DeepSeek or the publishers of the tools covered in this article.