Cline: OpenAI Compatible provider

These steps follow Cline's provider docs.

Replace YOUR-ENDPOINT with the endpoint shown on your API Key page after you sign up, and YOUR-KEY with your key. One key works for every model on 666 AI — Claude, GPT, Gemini, DeepSeek, Qwen and 200+ more.

Steps

  1. Open Cline's settings (⚙️).
  2. API Provider: OpenAI Compatible.
  3. Base URL: https://YOUR-ENDPOINT/v1.
  4. API Key: YOUR-KEY.
  5. Model ID: e.g. anthropic/claude-sonnet-5.5.
  6. Optional — Model Configuration: set Max Output Tokens and Context Window to the model's real values (see its model page).

Prefer the Anthropic format?

Choose API Provider Anthropic, enter your key, tick Use custom base URL and enter https://YOUR-ENDPOINT (no /v1).

FAQ

Model Not Found?

The model ID must exactly match the ID on our model page.

Invalid API Key?

Copy the key again from the API Key page and make sure there are no spaces.

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