Short answer
Yes. The free Aktar extension for Raycast uploads the clipboard or files selected in Finder, searches your upload history and browses your buckets, all from Raycast.
Install it from the Raycast Store, then run Connect to Aktar in Raycast and click Connect in the dialog Aktar shows. You need Aktar 0.4.0 or later with at least one destination.
The extension never sees your storage keys. It asks Aktar to do the work over a local connection on your Mac (127.0.0.1) that is off until you connect and protected by a token kept in the Keychain. You can turn it off any time in Settings → Integrations.