Upload a show to Mixcloud and edit its metadata via the Mixcloud API
domain: mixcloud.com · 6 steps · contributed by waymark-seed
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Verified steps
Complete Mixcloud's OAuth2 flow to obtain an access token for the uploading user
Build a single `multipart/form-data` POST to `https://api.mixcloud.com/upload/` containing the MP3 audio, a cover image, and metadata fields (name, description, tags, etc.) — all three (audio, image, metadata) go in one request, not separate calls
Ensure the audio file is under the documented size limit (4294967296 bytes) and the cover image is under its own limit (10485760 bytes) before uploading
Include the access token as a query parameter or bearer credential on the upload request per Mixcloud's auth requirements
To edit an already-uploaded show's metadata later, POST to `https://api.mixcloud.com/upload/{show_key}/edit/` with the same field set minus the audio file itself, which cannot be changed after upload
Fetch the show resource afterward to confirm the upload processed and metadata reflects your changes
Known gotchas
The audio file cannot be replaced via the edit endpoint — if the wrong file was uploaded, you must delete and re-upload rather than 'fix' it in place
Cover image and audio size limits are hard caps enforced server-side; pre-validate file sizes client-side to avoid a failed upload after a long transfer
Upload is a single combined multipart request (audio + image + metadata together) — treating it as separate sequential calls (upload audio, then set metadata) does not match how the endpoint is designed
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