Resources
Free tools and plain explanations for the paperwork around a release — the identifiers, metadata and delivery details that decide whether you get paid for a recording.
Tools
ToolKey & BPM finderUpload a track and get its tempo, key, Camelot code, energy, loudness and mix profile — analyzed by the same engine that tags every track on Postal.ToolISRC validatorCheck the structure of one ISRC or a whole catalogue, catch duplicates before they reach a distributor, and look up the code behind any released track.
Guides and reading
GuideLearnShort walkthroughs for organising a library, tagging metadata, sharing work and reading listening insights.GuideStorefront setupEverything needed to open a storefront: payouts, pricing, licences and the checks that have to pass before you sell.GuideAI taggingHow Postal tags your tracks, every tag it can use, and how reviewing, adding and removing tags trains the model.ReferenceNewsWriting from the Postal team on music workflow, metadata and the business around releasing music.ReferenceRelease notesEvery release in the product, newest first — what shipped, and what it changes.ReferenceDevelopersThe REST API and MCP server: what you can reach, what people build with them, and where the full reference lives.ReferenceTrust & securityHow unreleased music is stored, encrypted and access-controlled on Postal.
One place for the music and the metadata
Postal keeps tracks, versions, stems and the metadata that travels with them together — so what you deliver is what you meant to deliver.
Start for free↗Free to try. No credit card required.