Echo Nest API Overview


The Echo Nest API allows you to call methods that respond in JSON or XML. Individual methods are detailed in the menu on the left. You can call a method by using an HTTP GET to retrieve[type]/[method] along with method specific arguments.


You must have your own API key to make use of The Echo Nest API. To obtain a key, register for an account.

The example method calls in this set of documentation use a guest API key that is for demonstration purposes only and should not be used for any other application.

Ground Rules

We want to be as flexible as possible with our API and data feeds; if you have an interesting use of our platform, we want to help. Here are some basic ground rules that all developers should abide by when using the API and data feeds.

  • Use common sense. If you're unsure, ask us. - Our terms of service allow for most reasonable non-commercial uses. If you're doing something you think might be a problem or if you have any questions, just contact us at
  • Read the Terms of Service. - Before you start developing anything using the Echo Nest API, you need to read and abide by the full Terms of Service.
  • Do not use the API or feeds for commercial use without talking to us. - The Echo Nest's API is free for non-commercial purposes. To use them commercially, talk to us and we will go over the licensing options. In either case, we request that you give us proper branding and attribution when using our data. If you are a lone developer selling advertising that is barely covering your running costs, we consider that non-commercial. If you are a company writing paychecks, making plenty of money or driving a venture-capital-purchased MacBook Pro, you're probably commercial. For commercial use, we have standard terms & conditions that we can share with you. We want to be flexible and support many uses of the platform, so just contact us at if you have any questions about whether your use is commercial.
  • Credit. - Please give us due credit when using the Echo Nest API and feeds. Display an Echo Nest logo available on the logos page along with a link to when displaying content provided by the API or feeds.
  • Don't do anything illegal. - Don't use the API or feeds in connection with anything that promotes or takes part in any products, services, or materials that we would consider malicious, hateful, or illegal.
  • Don't pretend the data is yours. - You may not sell, lease, share, transfer, or sublicense the API or feeds or access to the API/feeds to any other party than the API key holder. You can cache our data to lighten bandwidth and improve latency, but don't crawl/spider our API or data feeds and make a copy of our data to steal our mojo.
  • Help us manage server and bandwidth costs. - Don't use the API or feeds in a manner that exceeds reasonable request volume, or constitutes excessive or abusive usage as determined by The Echo Nest. Don't register for multiple API keys in an attempt to cirumvent rate limits.
  • Respect the Terms of Service of our Partners. - Some of the data returned by the Echo Nest API may be subject to 3rd party terms of service. Make sure you understand and abide by these terms:


Use UTF-8 encoding when sending arguments to API methods.

Rate Limits

API methods are subject to rate limits. In general, non-commercial users of our API can expect a rate limit of around 120 calls per minute. This may vary depending upon overall system activity. If we are under a light load we may increase the limit associated with your API key and conversely, if we are under heavy load we may reduce that limit. If you need a guaranteed API limit, contact us at You can discover what your current rate limit and activity is by inspecting the response header that is returned with each API method call. There are three fields in the header associated with rate limits:

  • X-RateLimit-Limit - the current rate limit for this API key
  • X-RateLimit-Used - the number of method calls used on this API key this minute
  • X-RateLimit-Remaining - the estimated number of remaining calls allowed by this API key this minute

You can inspect the response header with the -i option to curl like so:

curl -i ''

This returns a response header with content like so:

HTTP/1.1 200 OK
Content-Length: 135
X-RateLimit-Limit: 120
X-RateLimit-Remaining: 62
X-RateLimit-Used: 58

This indicates that the current rate limit is 120 calls per minute. In the current minute 58 calls have been made and we estimate that you will have 62 calls remaining for the current minute.

If you exceed the rate limit during a period, API methods will fail with an HTTP response status code of 429.


Many calls take ID of items (artists, songs, tracks, etc). IDs can be full formed Echo Nest IDs like music:// or can in abbreviated form such as ARC51DL1187B9A9FED. We also support other ID spaces through Project Rosetta stone.

Project Rosetta Stone

The Echo Nest API supports multiple ID spaces. You can use an ID from a supported ID space in place of an Echo Nest ID in any call that takes an Echo Nest ID. For example, you can get news for Radiohead using a MusicBrainz ID like so:

Or using a 7Digital ID like so:

Similarly you can use a personal catalog foreign_id like so:

Methods that return Echo Nest IDs can also be used to retrieve IDs in a foreign ID space. For example, the following artist similarity call will return musicbrainz artist IDs:

Certain methods can be constrained to only return items that are members of the given ID space. For example, by setting the limit parameter to true, the following artist/similar call will limit results to those that fall in the 7Digital catalog:

Similarly, methods can be constrained to only return items that are members of a personal catalog. For example, the following call will limit similar artists to only those that are contained in the catalog CAABOUD13216257FC7:

Some Rosetta spaces are associated with specific locales. The format for a locale-specific Rosetta ID space is name-XX where XX is the country code for the supported locale. For example, 7digital-US:track:6372821 is a 7Digital ID space for the US locale. The special locale 'WW' indicates a catalog that is a superset of a number of supported locales.

Currently supported ID spaces are:

  • 7Digital artists - Example: 7digital-US:artist:142111 - Supported locales are US, UK and AU
  • 7Digital tracks - Example: 7digital-US:track:6372821 - Supported locales are US, UK and AU
  • Deezer artists - Example: deezer:artist:399
  • Deezer tracks - Example: deezer:track:20592361
  • Discogs artists - Example: discogs:artist:125776
  • Eventful artists - Example: eventful:artist:P0-001-000083341-6
  • Facebook artists - Example: facebook:artist:6979332244
  • Free Music Archive artists - Example: fma:artist:3243
  • Free Music Archive tracks - Example: fma:track:11764
  • JamBase artists - Example: jambase:artist:8317
  • LyricFind US songs - Example: lyricfind-US:song:3d294a4831babc7d57169ecda7117a16
  • OpenAura artists - Example: openaura:artist:528ff583e4b037311cddd0bf
  • Musicbrainz artists - Example: musicbrainz:artist:a74b1b7f-71a5-4011-9441-d0b5e4122711
  • MusixMatch songs - Example: musixmatch-WW:song:3310380
  • Playme artists - Example: playme:artist:1234
  • Playme tracks - Example: playme:track:554928
  • SeatGeek artists - Example: seatgeek:artist:35
  • Seatwave artists - Example: seatwave:artist:1000
  • Songkick artists - Example: songkick:artist:3084961
  • SongMeanings artists - Example: songmeaningsg:artist:200
  • SongMeanings songs - Example: songmeanings:song:471679
  • Spotify artists - Example: spotify:artist:4Z8W4fKeB5YxbusRsdQVPb or spotify-XX:artist:4Z8W4fKeB5YxbusRsdQVPb where XX is the locale. Supported locales are AD AR AT AU BE BG BO BR CA CH CL CO CR CY CZ DE DK DO EC EE ES FI FR GB GR GT HK HN HR HU IE IS IT LI LT LU LV MC MT MX MY NI NL NO NZ PA PE PH PL PT PY RO SE SG SI SK SV TR TW US UY ZZ
  • Spotify tracks - Example: spotify:track:3L7BcXHCG8uT92viO6Tikl or spotify-XX:track:3L7BcXHCG8uT92viO6Tikl where XX is the locale. Supported locales are AD AR AT AU BE BG BO BR CA CH CL CO CR CY CZ DE DK DO EC EE ES FI FR GB GR GT HK HN HR HU IE IS IT LI LT LU LV MC MT MX MY NI NL NO NZ PA PE PH PL PT PY RO SE SG SI SK SV TR TW US UY ZZ
  • Twitter artists - Example: twitter:artist:justinbieber
  • WhoSampled artists - Example: whosampled:artist:3309
  • WhoSampled tracks - Example: whosampled:track:8482

Standard Parameters

These parameters are valid for all methods in the API

Parameter Required? Multiple? Values Description
api_key yes no YOUR_API_KEY the developer API key
format no no json, jsonp, xml the format of the response
callback Required if format is jsonp no MyJSFunc the callback function for JSONP requests

Response Codes

Code Value
-1 Unknown Error
0 Success
1 Missing/ Invalid API Key
2 This API key is not allowed to call this method
3 Rate Limit Exceeded
4 Missing Parameter
5 Invalid Parameter

HTTP Response Codes

The HTTP Status response status code can be used to determine the status of an API request:

  • 200 - Success
  • 304 - Not Modified - indicates that the resource has not been modified since the version specified by the request headers If-Modified-Since or If-Match.
  • 400 - Bad Request - the request is not valid
  • 403 - Forbidden - you are not authorized to access that resource
  • 404 - Not Found - The requested resource could not be found
  • 429 - Too Many Requests - You have exceeded the rate limit associated with your API key
  • 5XX - Server Error - The Echo Nest is having an internal issue and cannot serve your request


Visit our downloads for links to existing Echo Nest API-related code.


Join our forums to provide feedback and discuss development with other developers.

Release History

  • March 3, 2015 - Documented Spotify locales
  • January 9, 2015 - Removed song/identify call
  • November 26, 2014 - Deprecated song/identify call
  • August 11, 2014 - Eliminated tasteprofile/similar call
  • June 16, 2014 - Changed name of Spotify-WW ID space to 'spotify'
  • May 16, 2014 - Added Rosetta id support for OpenAura
  • January 15, 2014 - moved taste_profile/predict api to the alpha endpoint
  • January 9, 2014 - added Rosetta id support for Eventful
  • January 8, 2014 - added support and documentation for the genre APIs
  • November 22, 2013 - added *_rank buckets for artist and song methods, removed beta indicators for artist_location and years_active plus minor wording cleanup for many methods
  • October 31, 2013 - catalog methods renamed to tasteprofile. Item ID is now optional for tasteprofile updates. Added target_xxx parameters to premium static and dynamic playlisting
  • September 17, 2013 - added support for reserved catalog attributes, support multiple genre seeds in genre-radio, partitioned playisting documentation into basic, standard and premium.
  • August 1, 2013 - 'styleb' is default style when dmca=true, HTTP Response code 429 returned when rate limit is exceeded.
  • June 20, 2013 - Added acousticness audio attribute and the acoustic and electric song_types
  • May 2, 2013 - Added Rosetta id support for SeatGeek
  • April 29, 2013 - Some playlist/dynamic API usability improvements
  • March 20, 2013 - Added support and documentation for 'speechiness' and 'liveness' in song and playlist methods.
  • January 31, 2013 - Added support and documentation for 'artist_location' in artist methods.
  • December 17, 2012 - Added support and documentation for 'genre' in artist and playlisting methods.
  • December 14, 2012 - Added support and documentation for 'general' taste profiles.
  • December 11, 2012 - Added Rosetta id support for WhoSampled artists and tracks. Details in this blog post: WhoSampled Joins Rosetta Stone, Opening Music App Possibilities
  • November 21, 2012 - Added support for the 'live' and 'studio' song type. Details in the blog post: We are doing it live!
  • November 16, 2012 - Added support for the 'christmas' song type. Details in the blog post: Christmas comes early to The Echo Nest
  • November 15, 2012 - Added Rosetta id support for Rhapsody artists and tracks. Details in the blog post: The Echo Nest Partners with Rhapsody
  • November 5, 2012 - Added Rosetta id support for Deezer artists and tracks. Details in the blog post: The Echo Nest Partners with Deezer
  • October 9, 2012 - Added support for Taste Profile Attributes Details in the blog post: Taste Profile Attributes Go Public
  • July 12, 2012 - Added support for Taste Profile similarity. Details in the blog post: The Echo Nest’s Taste Profile Similarity Will Bring People Together
  • June 8, 2012 - Added support for 19 new Rdio territories. Details in the blog post: New Rdio Rosetta catalogs
  • May 22, 2012 - Added Rosetta support for Discogs. Details in the blog post: Combining the Discogs and The Echo Nest APIs
  • April 23, 2012 - Added support Rosetta support for Songkick. Details in the blog post: Songkick Joins Rosetta Stone for Concert Listings in Music Apps
  • April 12, 2012 - Added Rosetta support for Jambase and SongMeanings. Details in the blog post: JamBase and SongMeanings Bring Concert Listings and Lyric Interpretations to Rosetta Stone
  • March 30, 2012 - Added Rosetta support for Musixmatch. Details in the blog post: Expand your Echo Nest app with MusixMatch lyrics
  • March 29, 2012 - Added Rosetta support for Spotify. Details in the blog post: Spotify + The Echo Nest API… Spotify Apps Just Got Smarter