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Practical guides, tutorials, and tips for using Claude API, GPT API, and other AI models affordably. Learn how to save up to 90% on AI API costs with derouter.ai.
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How to Use Claude API in Restricted Countries: Complete Guide 2026
Access Claude API from China and other restricted regions using derouter.ai - up to 77% cheaper with worldwide availability and no VPN required.
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Claude Code Setup Guide: Use Your Own API Key
Learn how to configure Claude Code with your own API key for 77% cheaper access to Claude models via derouter.ai