Developer docs
Tutujin API documentation
Tutujin API speaks the OpenAI API format: point base_url at the address below, use an sk- key from the console, and you can call 724 models. Claude's native Messages API and Gemini's native generateContent work as well.
OpenAI-compatible base URL
https://open.tutujin.com/v1For the native Claude and Gemini SDKs, use the site root https://open.tutujin.com as the base URL
- Models
- 724
- Groups
- 18
- Endpoint families
- 10
Prices updated Nov 12, 2026, 8:17 PM
Your first request in three steps
- 1Sign up, add credit, create an API key in the console and pick a group for it.
- 2Set your SDK's base_url to the address above and api_key to the new key.
- 3Use a model name from the model hub and send the request; every charge shows up under Usage in the console.
Get started
Start here: authentication, groups, billing and handling errors.
API reference
Headers, parameters, request and response examples for every endpoint.
Integration guides
Configure Tutujin API in the official SDKs and common frameworks and platforms.
API reference
| Endpoint | Method and path | Status | Models |
|---|---|---|---|
| Chat Completions | POST/v1/chat/completions | Verified | 681 |
| Responses | POST/v1/responses | Relayed as-is | 5 |
| Claude Messages | POST/v1/messages | Verified | 49 |
| Gemini generateContent | POST/v1beta/models/{model}:generateContent | Verified | 63 |
| Image generation | POST/v1/images/generations | Relayed as-is | 54 |
| Image editing | POST/v1/images/edits | Relayed as-is | 31 |
| Embeddings | POST/v1/embeddings | Verified | 18 |
| Rerank | POST/v1/rerank | Relayed as-is | 6 |
| Text to speech | POST/v1/audio/speech | Relayed as-is | 8 |
| Speech to text | POST/v1/audio/transcriptions | Relayed as-is | 1 |
"Verified" means we have made real calls and checked billing on this site. "Relayed as-is" means requests are forwarded in their original format; parameters follow the model's official documentation. Model counts are the models in the current catalog that support the endpoint.