> For the complete documentation index, see [llms.txt](https://developers.share.inc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.share.inc/getting-started/authentication.md).

# Authentication

> **Placeholder page.** Full content will land alongside DEV-853.

The Share API authenticates with a header pair:

* `X-Access-Id` — public-ish partner identifier (`provider`)
* `X-Access-Secret` — JWT, treat as a password

Both headers must be present on every request. The pair is scoped to a single partner; all reads and writes are tenant-isolated by the `X-Access-Id`.

See [Your first request](/getting-started/first-request.md) for a worked example.