Postal Music

Postal is the cloud library for people who make and pitch music: artists, producers, songwriters, labels and publishers. It holds your audio, versions and stems together with everything known about them: tags, BPM, key, credits, composers, playlists, briefs and play analytics. The Postal connector gives Claude a controlled view of that library so you can work it by asking, in the words you already use.

Search by feel, not filename. Describe what you need the way a music supervisor would (“dark cinematic trap for a chase scene, instrumental, under 100 BPM”) and Claude searches by mood, tempo, key, instrumentation and genre, returns ranked results with a reason for each pick, and narrows in the same thread: shorter, darker, no vocal.

Build the playlist in the same breath. Turn what you just found into a named playlist in one message, reorder it, add to it as the conversation continues. It lands in Postal live, ready to send as a public link.

Tag and audit in bulk. Auto-tag a week of uploads for genre, mood, instruments and vocals, review the suggestions Claude is least sure about before anything is applied, and write corrections back so the model learns your catalog. Catch duplicate audio hiding under different filenames and find tracks missing a BPM, a key or a title.

Manage the catalog itself. Upload tracks by URL, add and activate versions, set track status, update details and artwork, and keep credits and composer records in step. Check which tracks were submitted to which briefs, and pull your dashboard, top tracks and play stats for any period.

Claude only sees what you ask about, your key never leaves Postal, and you can disconnect at any time. The hosted server speaks Streamable HTTP and authenticates with OAuth 2.1 or an API key from your Postal settings. 45 tools, documented at docs.postal.music/mcp.

Try: “Find five warm, mid-tempo instrumentals for a coffee ad and make me a playlist link.” “Tag everything I uploaded this week and show me what you’re l