> ## Documentation Index
> Fetch the complete documentation index at: https://docs.protoface.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API Reference

> Authentication, conventions, and endpoints for the Protoface REST API.

Base URL:

```text theme={null}
https://api.protoface.com/v1
```

Authenticate with a Protoface API key:

```http theme={null}
Authorization: Bearer sk_live_...
```

Create and manage keys in [app.protoface.com](https://app.protoface.com).

## Conventions

* IDs are prefixed strings such as `sess_...` and `av_...`.
* Timestamps are ISO-8601 UTC strings.
* List endpoints use cursor pagination with `limit` and `starting_after`.
* Error responses use the envelope described in [Errors](/reference/errors).
* `POST /v1/sessions` accepts `Idempotency-Key` for safe retries.
