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GuidesIntegrationsAPI ReferencesRelease notes
    • APIs overview
  • Upload API
    • Errors
  • REST API
    • Authentication
    • File Metadata
    • Add Ons
    • Changelog
    • Versioning
  • URL API
    • File Information
    • File Names
    • File groups
    • Image processing limitations
    • Image compression
    • Image resize and crop
    • Image rotation
    • Image overlays
    • Image colors
    • Image definition
    • Image recognition
    • Other image operations
    • Proxy
    • Signed URLs
    • CDN settings
    • Integrations
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Uploadcare URL API Reference

API endpoints

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

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/
...
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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.
  • :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 for all popular platforms.