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

# Uploadcare URL API Reference

> Complete reference documentation for the Uploadcare's URL API. Covers endpoints, requests, their parameters, and response examples.

Every uploaded file is immediately available on the Uploadcare CDN.
The CDN includes on-the-fly processing features and can work as a proxy.

You can add CDN operations by including directives in the CDN URL:
`https://:subdomain.ucarecd.net/:uuid/-/:operation/:params/:filename`

* `:subdomain` is your project's subdomain. Find it in [Delivery](https://app.uploadcare.com/projects/-/settings/#delivery).
* `:uuid` stands for the unique file identifier, UUID, assigned on upload.
* `/-/` is a mandatory parsing delimiter to divide operations and other path components.
* `:operation/:params/` is a CDN operation directive with parameters.
* `:filename` is an optional filename you can add after a trailing slash /.

You can stack two and more operations like this:
`-/:operation/:params/-/:operation/:params/`

You don't have to code most of the low-level API interactions. We have high-level [libraries](/docs/integrations/) for all popular platforms.

### API endpoints

Access files in Uploadcare CDN at `:subdomain.ucarecd.net` over HTTP/HTTPS.

**`Endpoints`**

```text title="Endpoints"
https://:subdomain.ucarecd.net/:uuid/
https://:subdomain.ucarecd.net/:uuid/-/:operation/:params/:filename
https://:subdomain.ucarecd.net/:uuid/-/preview/
https://:subdomain.ucarecd.net/:uuid/gif2video/
https://:subdomain.ucarecd.net/:uuid/videoframe/:timestamp/
...
```