Aider + Claude Max Ban: How to Keep Aider Working in 2026

If you use Aider for AI-assisted coding and your Claude Max subscription was your model source, January 2026 broke your setup. This is the fix. What happened In January 2026, Anthropic enforced their Claude Max terms of service. Automated tool access — AI coding assistants that call Claude through subscription auth tokens — is not permitted on consumer plans. Aider, like Cline and Roo Code, can connect to Claude through your subscription credentials. That path stopped working. The Anthropic API was never restricted. Only the subscription OAuth path was. Why Aider is actually in a better position than most tools Aider was built API-first from day one. Unlike VS Code extensions that were patched to support custom providers, Aider has native OpenAI-compatible provider support baked into its config system. This means the fix is genuinely one line. The fix: switch to API auth Aider uses environment variables or a config file for model configuration. You need to: Get an API key from any Open