API overview
An OpenAI-compatible API at api.tessen.ai, used by OpenCode and callable from your own code.
The Project Zero API is the endpoint OpenCode calls. It is OpenAI-compatible: any client that speaks chat completions can use it by pointing at the base URL below and selecting the project-zero model.
| Base URL | Authentication | Model |
|---|---|---|
| https://api.tessen.ai/v1 | Authorization: Bearer tes_… | project-zero |
Endpoints
| Method | Path | Purpose |
|---|---|---|
| POST | /v1/chat/completions | OpenAI-compatible chat completions. Project Zero is selected by the project-zero model. |
| GET | /v1/zero/status | Your Project Zero access, whether it can serve right now, and today's reset. |
OpenCode through the Tessen CLI is the certified client for the Developer Alpha. Direct requests reach the same endpoint with the same credential and the same rules.