| 1 | 607 | 443 | json-jwt | JSON Web Token and its family (JSON Web Signature, JSON Web Encryption and JSON Web Key... |
| 2 | 736 | 537 | rack-oauth2 | OAuth 2.0 Server & Client Library. Both Bearer token type are supported. |
| 3 | 742 | 516 | attr_required | attr_required and attr_optional |
| 4 | 780 | 547 | openid_connect | OpenID Connect Server & Client Library |
| 5 | 829 | 549 | swd | SWD (Simple Web Discovery) Client Library |
| 6 | 832 | 553 | webfinger | Ruby WebFinger client library |
| 7 | 3,283 | 2,332 | apple_id | Sign-in with Apple backend library in Ruby. |
| 8 | 3,296 | 2,570 | omniauth-apple | OmniAuth strategy for Sign In with Apple |
| 9 | 3,736 | 6,892 | fb_graph2 | Facebook Graph API v2.x Wrapper in Ruby |
| 10 | 3,917 | 23,828 | fb_graph | A full-stack Facebook Graph API wrapper in Ruby. |
| 11 | 5,071 | 13,047 | paypal-express | PayPal Express Checkout API Client for Instance, Recurring and Digital Goods Payment. |
| 12 | 9,115 | 47,536 | restclient_with_cert | RestClient with embedded cert |
| 13 | 12,902 | 89,538 | itunes-receipt | Handle iTunes In App Purchase Receipt Verification |
| 14 | 19,515 | 58,808 | fb_graph-mock | FB Graph API mocking |
| 15 | 19,903 | 58,808 | jsonbuilder | Builder::XmlMarkup like JsonBuilder |
| 16 | 23,089 | 19,942 | square | Square API client |
| 17 | 33,191 | 35,144 | activitystreams | A RubyGem for ActivityStreams Publishers |
| 18 | 34,901 | 58,808 | iknow | A rubygem for iKnow! APIs |
| 19 | 37,604 | 14,164 | web_authn | W3C Web Authentication API (a.k.a. WebAuthN / FIDO 2.0) RP library in Ruby |
| 20 | 42,841 | 19,942 | twitter_oauth2 | Twitter OAuth 2.0 Client Library in Ruby. |
| 21 | 46,993 | 89,538 | smartfm | A rubygem for smart.fm APIs |
| 22 | 56,698 | 47,536 | rack-locale_memorable | Remember locale in rack layer |
| 23 | 68,462 | 23,828 | cose-key | COSE Key (RSA & EC) in Ruby |
| 24 | 101,056 | 89,538 | octokit-enterprise | Octokit for GitHub Enterprise |
| 25 | 102,688 | 89,538 | safie | Safie API Client in Ruby. |
| 26 | 109,431 | 89,538 | faraday-jwt | Faraday Middleware for JWT Request & Response |
| 27 | 110,483 | 58,808 | connect | Yet Another OpenID Connect Gem... might be |
| 28 | 116,684 | 47,536 | apple_pay | Apple Pay Merchant Backend |
| 29 | 125,159 | 58,808 | nov-rack-openid | Provides a more HTTPish API around the ruby-openid library |
| 30 | 125,198 | 58,808 | nov-ruby-openid | A library for consuming and serving OpenID identities. |
| 31 | 129,014 | 89,538 | nov-oauth2 | A Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OA... |
| 32 | 130,523 | 89,538 | motion-oauth2 | OAuth2 client library for RubyMotion apps, you need APIs right? |
| 33 | 142,554 | 89,538 | nov-stylus | Bridge library to compile .styl stylesheets from ruby code. |
| 34 | 147,499 | 47,536 | nov-omniauth-yahoojp | Fork of Official OmniAuth strategy for Yahoo! JAPAN. |
| 35 | 158,809 | 89,538 | nov-test-gem | just a demo for Qiita article |
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