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

# Authentication

> Bot tokens in the Authorization header.

Create an app and token in SigmaChat's developer settings. Send the
token on every request:

```bash theme={null}
curl https://sigmachat.org/api/v1/app \
  -H "Authorization: Bearer YOUR_TOKEN"
```

Tokens are shown once at creation. A leaked token can be revoked and
reissued in the same settings screen; revocation is immediate.