How to Configure Claude Code with a Third-Party OpenAI-Compatible API

📰 Dev.to AI

Configure Claude Code with a third-party OpenAI-compatible API by setting environment variables, enabling a seamless coding experience

intermediate Published 27 May 2026

Action Steps

Set environment variables for the third-party API gateway
Configure Claude Code to use the third-party API by setting the base URL
Test the integration by running commands and refactoring code
Verify that Claude Code is working correctly with the third-party API
Apply the configuration to your development workflow to enhance productivity

Who Needs to Know This

Developers and DevOps teams can benefit from this setup to streamline their coding workflow and integrate Claude Code with their preferred API gateway

Key Insight

💡 Claude Code requires specific environment variable setup to work with third-party OpenAI-compatible APIs

Key Takeaways

Configure Claude Code with a third-party OpenAI-compatible API by setting environment variables, enabling a seamless coding experience

Full Article

Claude Code is a terminal-first coding assistant. It can read a repository, explain code, edit files, run commands, and help with refactors from inside your development workflow. If you want to use it with a third-party API gateway, the setup is mostly environment variables. The part that often trips people up is this: Claude Code is not configured like a normal OpenAI-compatible SDK. OpenAI-compatible clients usually use a base URL like: </

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