| Name | Allows CORS | Authentication Method | Authentication Required |
|---|---|---|---|
| Spotify Web API | yes | oauth | yes/no |
| reddit API | yes | auth | yes |
| Youtube API | yes | API key | yes/no |
| yes | API key | yes | |
| Soundcloud | yes | API key | yes |
| Wikipedia | yes | n/a | n/a |
| Rotten Tomatoes | yes | API key | yes |
| flickr | yes | oauth | yes |
| Pinterest API | yes | oauth | yes |
| Google Custom Search API | yes | API key | yes |
| Tumblr API | yes | outh | yes |
| Marvel API | yes | API key | yes |
| GeoNames API | yes | username | yes |
| OMDB | yes | n/a | n/a |
| Zillow | no | ID | yes |
| Open Street Maps | yes | n/a | no |
| GovTrack.us | yes | n/a | no |
| Sqoot | yes | API key | yes |
| Google Maps | yes | API key | yes |
| Giphy | yes | API key | yes |
| JSFiddle | yes | n/a | n/a |
| Bitcoin Charts | yes | n/a | n/a |
| StackExchange API | yes | oauth | yes |
| ProPublica NonProfit API | Yes? | n/a | no |
| U.S. City & County Web Data API | Yes | n/a | no |
| UN Data API | Yes | API key | yes |
| Face++ API | Yes | API Key | Yes |
| MusiXMatch | Yes | API Key | Yes |
| Words API | Yes | Token | No |
https://news.ycombinator.com/item?id=7546040
http://www.programmableweb.com/apis/directory
Get access to a REST console for all different API's: https://apigee.com/console/linkedin?u=0&apig_cc=1
reddit example:
Run and open the console.
http://jsfiddle.net/danielvassallo87/6k2j5yqL/
http://speckyboy.com/2014/01/22/building-simple-reddit-api-webapp-using-jquery/
Wikipedia example:
http://jsfiddle.net/gautamadude/hmjjg/1/
Tumblr api example
http://jsfiddle.net/danielvassallo87/42ozoqwf/
GeoNames api example
https://jsfiddle.net/adifah/ma2xb/
OMDB api example
http://jsfiddle.net/potherca/765kzyx1/
GovTrack.us
https://www.govtrack.us/api/v2/role?current=true
Sqoot
http://docs.sqoot.com/v2/overview.html
Google Maps example
http://jsfiddle.net/salman/4mtyu/
Giphy
https://github.com/Giphy/GiphyAPI
ProPublica Nonprofit Explorer (API)
https://projects.propublica.org/nonprofits/api
Face++ API
https://market.mashape.com/faceplusplus/faceplusplus-face-detection
MusicXMatch API
https://market.mashape.com/musixmatch-com/musixmatch
UN Data API (Unofficial, but much easier to use)
https://www.undata-api.org/docs
JSFiddle
http://jsfiddle.net/zalun/sthmj/embedded/result/
Bitcoin Charts
https://bitcoincharts.com/about/markets-api/
StackOverflow