What you get#
Onekey exposes Last.fm as 9 endpoints behind one API key: 3 endpoints return one record (data is an object) and 6 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Last.fm also works for the rest of the music & audio category.
Endpoints#
| Endpoint | What it does | Parameters | Credits | Status |
|---|---|---|---|---|
album_info | Album info and stats (Last.fm). | artist*, album* | 1 | beta |
artist_info | Artist info and stats (Last.fm). | artist* | 1 | beta |
artist_search | Search artists (Last.fm). | q* | 5 | beta |
artist_similar | Artists similar to an artist (Last.fm). | artist* | 5 | beta |
chart_top_artists | Global top artists chart (Last.fm). | - | 5 | beta |
chart_top_tracks | Global top tracks chart (Last.fm). | - | 5 | beta |
tag_top_artists | Top artists for a tag/genre (Last.fm). | tag* | 5 | beta |
track_info | Track info and stats (Last.fm). | artist*, track* | 1 | beta |
track_search | Search tracks (Last.fm). | q* | 5 | beta |
A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.
Make a request#
This calls lastfm.album_info (1 credit, beta). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.
curl "https://api.onekey.dev/v1/lastfm/album_info?artist=Radiohead&album=OK%20Computer" \
-H "x-api-key: YOUR_API_KEY"Fields you get back#
These unified fields come back from Last.fm, with the same names as on every other platform. The count is how many of its 9 mapped endpoints return the field; a field the source lacks is null, never missing. 3 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.
| Field | Type | Endpoints |
|---|---|---|
author.displayName | string | 9 |
engagement.views | integer | 8 |
author.url | URL | 5 |
author.followers | integer | 4 |
content.title | string | 3 |
content.url | URL | 3 |
author.bio | string | 1 |
entity.name | string | 1 |
entity.url | URL | 1 |
The full schema is in Unified schema.
Pricing#
Last.fm calls cost 1 to 5 credits, flat per endpoint. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.