# Last.fm

**Canonical:** https://apis.io/providers/lastfm/  
**Website:** https://www.last.fm  
**APIs profiled:** 9

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 (recent tracks, top tracks/albums/artists, weekly charts), and the Scrobbling 2.0 write surface (track.scrobble, track.updateNowPlaying, track.love). 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.

## Kin Score — 63.7 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 63.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 67.2 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 76.2 |
| Commercial Clarity | 73.7 |
| Access Clarity | 73.7 |

## Agent readiness — 32.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (9)

- **Last.fm Album API** — Album metadata, tagging, and search.
- **Last.fm Artist API** — Artist metadata, similarity, tagging, top albums/tracks, and search.
- **Last.fm Auth API** — Token, session, and mobile session acquisition for authenticated calls.
- **Last.fm Chart API** — Global top artists, tags, and tracks.
- **Last.fm Geo API** — Country-level top artists and tracks.
- **Last.fm Library API** — A user's scrobbled artist library.
- **Last.fm Tag API** — Tag metadata, similar tags, top albums/artists/tracks, and chart history.
- **Last.fm Track API** — Track metadata, scrobbling, love/unlove, tagging, search.
- **Last.fm User API** — User profile, friends, listening history, top entities, and weekly charts.

## Agentic access (1)

- **Lastfm Agentic Access** — 59 operations · 12 acting

## Security (2)

- **Lastfm Authentication** — apiKey · 2 schemes
- **Lastfm Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Lastfm Plans Pricing**

## Use cases (6)

- **Music Player Scrobbling** — Record tracks played in music apps to Last.fm user profiles for history and recommendations
- **Music Metadata Enrichment** — Augment music catalogs with artist bios, album art, tags, and similar artist data
- **Personalized Charts** — Display weekly, monthly, or all-time listening charts for users in applications
- **Music Discovery Features** — Power recommendation engines with similar artist and track data from Last.fm
- **Social Listening** — Show what friends are listening to and compare music tastes between users
- **Geographic Music Trends** — Display top artists and tracks by country or region for localized music features

## Tags

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

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/lastfm/). Scores are computed from the provider's own public artifacts under a published rubric.