> For the complete documentation index, see [llms.txt](https://beosinofficials-organization.gitbook.io/beosin-api-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://beosinofficials-organization.gitbook.io/beosin-api-documentation/getting-started/verification.md).

# Verification

Beosin API uses a unique API token to authorize calls.

You will pass this unique token header:

| Key        | Value        | Description                           |
| ---------- | ------------ | ------------------------------------- |
| APPID      | {APPID}      | Your unique application identifier.   |
| APP-SECRET | {APP-SECRET} | A secure key used for authentication. |