# OtterArk API Notes For Agents

- [OpenAPI](https://otterark.com/openapi.json)
- [Markdown API summary](https://otterark.com/api.md)
- [OpenAPI markdown fallback](https://otterark.com/openapi.json.md)

Use `/v1/chat/completions`, `/v1/responses`, or `/v1/messages` based on the source client format. OtterArk performs compatible routing and conversion through configured channels.