| 1 | 607 | 404 | json-jwt | JSON Web Token and its family (JSON Web Signature, JSON Web Encryption and JSON Web Key... |
| 2 | 736 | 468 | rack-oauth2 | OAuth 2.0 Server & Client Library. Both Bearer token type are supported. |
| 3 | 741 | 462 | attr_required | attr_required and attr_optional |
| 4 | 780 | 488 | openid_connect | OpenID Connect Server & Client Library |
| 5 | 829 | 489 | swd | SWD (Simple Web Discovery) Client Library |
| 6 | 832 | 487 | webfinger | Ruby WebFinger client library |
| 7 | 3,284 | 2,336 | apple_id | Sign-in with Apple backend library in Ruby. |
| 8 | 3,296 | 1,908 | omniauth-apple | OmniAuth strategy for Sign In with Apple |
| 9 | 3,736 | 5,193 | fb_graph2 | Facebook Graph API v2.x Wrapper in Ruby |
| 10 | 3,916 | 7,435 | fb_graph | A full-stack Facebook Graph API wrapper in Ruby. |
| 11 | 5,071 | 10,399 | paypal-express | PayPal Express Checkout API Client for Instance, Recurring and Digital Goods Payment. |
| 12 | 9,114 | 27,037 | restclient_with_cert | RestClient with embedded cert |
| 13 | 12,896 | 26,137 | itunes-receipt | Handle iTunes In App Purchase Receipt Verification |
| 14 | 19,510 | 25,045 | fb_graph-mock | FB Graph API mocking |
| 15 | 19,902 | 26,137 | jsonbuilder | Builder::XmlMarkup like JsonBuilder |
| 16 | 23,088 | 16,537 | square | Square API client |
| 17 | 33,190 | 41,508 | activitystreams | A RubyGem for ActivityStreams Publishers |
| 18 | 34,894 | 41,508 | iknow | A rubygem for iKnow! APIs |
| 19 | 37,621 | 146,834 | web_authn | W3C Web Authentication API (a.k.a. WebAuthN / FIDO 2.0) RP library in Ruby |
| 20 | 42,855 | 18,371 | twitter_oauth2 | Twitter OAuth 2.0 Client Library in Ruby. |
| 21 | 46,979 | 29,467 | smartfm | A rubygem for smart.fm APIs |
| 22 | 56,689 | 16,537 | rack-locale_memorable | Remember locale in rack layer |
| 23 | 68,476 | 177,849 | cose-key | COSE Key (RSA & EC) in Ruby |
| 24 | 101,042 | 88,619 | octokit-enterprise | Octokit for GitHub Enterprise |
| 25 | 102,681 | 62,515 | safie | Safie API Client in Ruby. |
| 26 | 109,422 | 25,045 | faraday-jwt | Faraday Middleware for JWT Request & Response |
| 27 | 110,481 | 177,849 | connect | Yet Another OpenID Connect Gem... might be |
| 28 | 116,694 | 88,619 | apple_pay | Apple Pay Merchant Backend |
| 29 | 125,158 | 88,619 | nov-rack-openid | Provides a more HTTPish API around the ruby-openid library |
| 30 | 125,201 | 112,317 | nov-ruby-openid | A library for consuming and serving OpenID identities. |
| 31 | 129,008 | 88,619 | nov-oauth2 | A Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OA... |
| 32 | 130,506 | 112,317 | motion-oauth2 | OAuth2 client library for RubyMotion apps, you need APIs right? |
| 33 | 142,541 | 88,619 | nov-stylus | Bridge library to compile .styl stylesheets from ruby code. |
| 34 | 147,544 | 14,516 | nov-omniauth-yahoojp | Fork of Official OmniAuth strategy for Yahoo! JAPAN. |
| 35 | 158,795 | 112,317 | nov-test-gem | just a demo for Qiita article |
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