> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://fastpix.com/docs/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://fastpix.com/docs/_mcp/server.

# thirdPartyId parameter for media correlation

> Attach your own identifier to any uploaded media using the new thirdPartyId parameter, echoed back in API responses and webhook payloads.

FastPix has introduced `thirdPartyId` as a new parameter in VOD, so you can attach your own identifier to any uploaded media. The value is opaque to FastPix and is echoed back on the get-media response and in every webhook payload tied to the media — making it straightforward to correlate FastPix media back to the corresponding row in your own MAM, CMS, e-commerce database, or other upstream system.

If you previously stored the FastPix media ID in your own database as the bridge between systems, you can keep doing that — `thirdPartyId` is purely additive.