> For the complete documentation index, see [llms.txt](https://docs.anchored.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.anchored.finance/trading-api/authentication.md).

# Authentication

- [Headers & Permissions](https://docs.anchored.finance/trading-api/authentication/headers-and-permissions.md)
- [HMAC Authentication](https://docs.anchored.finance/trading-api/authentication/signature.md)
- [Examples](https://docs.anchored.finance/trading-api/authentication/examples.md)