Last.fm (lastfm)

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Full detail: Where this data comes from

Last.fm is the long-running music recommendation, scrobbling, and music-data service operated by CBS Interactive. Its Web Services 2.0 API (the AudioScrobbler API at ws.audioscrobbler.com/2.0/) exposes catalog data (artists, albums, tracks, tags), charts, geo-listening data, user listening history, and the Scrobbling 2.0 write surface.

Every operation is dispatched through a single endpoint via the method parameter (e.g. method=user.getRecentTracks). Authentication uses an API key for reads and a signed (api_sig) session-key flow for writes. The API is free for non-commercial use; commercial use requires a separate agreement via partners@last.fm.

APIs.yml: apis.yml

Type

• x-type: company
• x-tier: 3 (bulk-registered from public-apis, then enriched)
• source: public-apis/public-apis — category: Music

APIs

Last.fm Web Services 2.0

• Documentation: https://www.last.fm/api
• Base URL: https://ws.audioscrobbler.com/2.0
• Auth: api_key (reads) + sk session key + api_sig MD5 signature (writes)
• Formats: XML (default), JSON (format=json)
• Packages: Album, Artist, Auth, Chart, Geo, Library, Tag, Track, User
• OpenAPI: openapi/lastfm-openapi-original.yml

Artifacts

Type	Path
OpenAPI	openapi/lastfm-openapi-original.yml
Spectral Rules	rules/lastfm-rules.yml
JSON Schemas	json-schema/ (album, artist, track, tag, user)
JSON Structure	json-structure/ (album, artist, track)
JSON-LD Context	json-ld/lastfm-context.jsonld
Vocabulary	vocabulary/lastfm-vocabulary.yml
Examples	examples/ (album, artist, track, chart, recent tracks, scrobble)
Plans / Pricing	plans/lastfm-plans-pricing.yml
Rate Limits	rate-limits/lastfm-rate-limits.yml

Naftiko Capabilities

Per-package capabilities (one per Last.fm method package):

• capabilities/lastfm-album.yaml
• capabilities/lastfm-artist.yaml
• capabilities/lastfm-auth.yaml
• capabilities/lastfm-chart.yaml
• capabilities/lastfm-geo.yaml
• capabilities/lastfm-library.yaml
• capabilities/lastfm-tag.yaml
• capabilities/lastfm-track.yaml
• capabilities/lastfm-user.yaml

Cross-package workflow capabilities:

• capabilities/music-discovery.yaml — search → similar artists → top tags → tag-pivot → geo lens
• capabilities/music-scrobbling.yaml — mobile session → now playing → scrobble → love

Community SDKs

A vibrant community library ecosystem covers Last.fm in JavaScript, TypeScript, Python, PHP, Ruby, .NET (Inflatable.Lastfm), Dart, Elixir, Haskell, Common Lisp, and Java/Spring Social. See common SDK entries in apis.yml.

MCP Servers

• ScrobblerContext — Swift Last.fm MCP server with search/library/scrobble tools
• lastfm-mcp — Cloudflare Workers Last.fm MCP server with OAuth 2.0

Notes

• Single dispatch endpoint pattern — all methods are package.methodName selected via the method parameter
• Free non-commercial tier; commercial use requires an agreement (partners@last.fm)
• Documented rate guidance: ~5 req/sec per originating IP; scrobble batches capped at 50/request
• Reasonable Usage Cap: 100 MB stored Last.fm Data per integration
• "powered by AudioScrobbler" attribution required on consuming surfaces

Tags

Music, Audio, Scrobbling, Recommendations, Charts, Public APIs, AudioScrobbler

Timestamps

• Created: 2026-05-28
• Modified: 2026-05-29

Maintainers

• Kin Lane — kin@apievangelist.com