# OpenAI Chat Completions (HTTP)

Clawdbot’s Gateway can serve a small OpenAI-compatible Chat Completions endpoint.

This endpoint is **disabled by default**. Enable it in config first.

- `POST /v1/chat/completions`
- Same port as the Gateway (WS + HTTP multiplex): `http://\<gateway-host\>:\<port\>/v1/chat/completions`

Under the hood, requests are executed as a normal Gateway agent run (same codepath as `clawdbot agent`), so routing/permissions/config match your Gateway.

## Authentication

Uses the Gateway auth configuration. Send a bearer token:

- `Authorization: Bearer \<token\>`

Notes:
- When `gateway.auth.mode="token"`, use `gateway.auth.token` (or `OPENCLAW_GATEWAY_TOKEN`).
- When `gateway.auth.mode="password"`, use `gateway.auth.password` (or `OPENCLAW_GATEWAY_PASSWORD`).

## Choosing an agent

No custom headers required: encode the agent id in the OpenAI `model` field:

- `model: "clawdbot:\<agentId\>"` (example: `"clawdbot:main"`, `"clawdbot:beta"`)
- `model: "agent:\<agentId\>"` (alias)

Or target a specific Clawdbot agent by header:

- `x-clawdbot-agent-id: \<agentId\>` (default: `main`)

Advanced:
- `x-clawdbot-session-key: \<sessionKey\>` to fully control session routing.

## Enabling the endpoint

Set `gateway.http.endpoints.chatCompletions.enabled` to `true`:

```json5
{
  gateway: {
    http: {
      endpoints: {
        chatCompletions: { enabled: true }
      }
    }
  }
}
```

## Disabling the endpoint

Set `gateway.http.endpoints.chatCompletions.enabled` to `false`:

```json5
{
  gateway: {
    http: {
      endpoints: {
        chatCompletions: { enabled: false }
      }
    }
  }
}
```

## Session behavior

By default the endpoint is **stateless per request** (a new session key is generated each call).

If the request includes an OpenAI `user` string, the Gateway derives a stable session key from it, so repeated calls can share an agent session.

## Streaming (SSE)

Set `stream: true` to receive Server-Sent Events (SSE):

- `Content-Type: text/event-stream`
- Each event line is `data: \<json\>`
- Stream ends with `data: [DONE]`

## Examples

Non-streaming:
```bash
curl -sS http://127.0.0.1:18789/v1/chat/completions \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -H 'x-clawdbot-agent-id: main' \
  -d '{
    "model": "clawdbot",
    "messages": [{"role":"user","content":"hi"}]
  }'
```

Streaming:
```bash
curl -N http://127.0.0.1:18789/v1/chat/completions \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -H 'x-clawdbot-agent-id: main' \
  -d '{
    "model": "clawdbot",
    "stream": true,
    "messages": [{"role":"user","content":"hi"}]
  }'
```