| 1 | 515 | 417 | json-jwt | JSON Web Token and its family (JSON Web Signature, JSON Web Encryption and JSON Web Key... |
| 2 | 714 | 506 | attr_required | attr_required and attr_optional |
| 3 | 715 | 523 | rack-oauth2 | OAuth 2.0 Server & Client Library. Both Bearer token type are supported. |
| 4 | 768 | 539 | openid_connect | OpenID Connect Server & Client Library |
| 5 | 793 | 546 | swd | SWD (Simple Web Discovery) Client Library |
| 6 | 796 | 545 | webfinger | Ruby WebFinger client library |
| 7 | 3,084 | 2,931 | omniauth-apple | OmniAuth strategy for Sign In with Apple |
| 8 | 3,221 | 2,455 | apple_id | Sign-in with Apple backend library in Ruby. |
| 9 | 3,910 | 4,691 | fb_graph2 | Facebook Graph API v2.x Wrapper in Ruby |
| 10 | 4,150 | 15,549 | fb_graph | A full-stack Facebook Graph API wrapper in Ruby. |
| 11 | 5,363 | 8,886 | paypal-express | PayPal Express Checkout API Client for Instance, Recurring and Digital Goods Payment. |
| 12 | 9,614 | 33,893 | restclient_with_cert | RestClient with embedded cert |
| 13 | 13,484 | 61,367 | itunes-receipt | Handle iTunes In App Purchase Receipt Verification |
| 14 | 20,081 | 41,086 | fb_graph-mock | FB Graph API mocking |
| 15 | 20,562 | 61,367 | jsonbuilder | Builder::XmlMarkup like JsonBuilder |
| 16 | 22,450 | 61,367 | square | Square API client |
| 17 | 29,702 | 14,600 | twitter_oauth2 | Twitter OAuth 2.0 Client Library in Ruby. |
| 18 | 34,326 | 61,367 | activitystreams | A RubyGem for ActivityStreams Publishers |
| 19 | 35,790 | 61,367 | iknow | A rubygem for iKnow! APIs |
| 20 | 37,236 | 33,893 | web_authn | W3C Web Authentication API (a.k.a. WebAuthN / FIDO 2.0) RP library in Ruby |
| 21 | 48,016 | 61,367 | smartfm | A rubygem for smart.fm APIs |
| 22 | 49,632 | 61,367 | rack-locale_memorable | Remember locale in rack layer |
| 23 | 67,902 | 61,367 | cose-key | COSE Key (RSA & EC) in Ruby |
| 24 | 78,852 | 20,275 | nov-omniauth-yahoojp | Fork of Official OmniAuth strategy for Yahoo! JAPAN. |
| 25 | 82,747 | 41,086 | faraday-jwt | Faraday Middleware for JWT Request & Response |
| 26 | 102,359 | 33,893 | octokit-enterprise | Octokit for GitHub Enterprise |
| 27 | 102,659 | 61,367 | safie | Safie API Client in Ruby. |
| 28 | 112,425 | 61,367 | connect | Yet Another OpenID Connect Gem... might be |
| 29 | 117,071 | 61,367 | apple_pay | Apple Pay Merchant Backend |
| 30 | 126,632 | 41,086 | nov-rack-openid | Provides a more HTTPish API around the ruby-openid library |
| 31 | 126,701 | 41,086 | nov-ruby-openid | A library for consuming and serving OpenID identities. |
| 32 | 130,702 | 41,086 | nov-oauth2 | A Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OA... |
| 33 | 132,155 | 41,086 | motion-oauth2 | OAuth2 client library for RubyMotion apps, you need APIs right? |
| 34 | 141,859 | 33,893 | nov-stylus | Bridge library to compile .styl stylesheets from ruby code. |
| 35 | 160,084 | 41,086 | nov-test-gem | just a demo for Qiita article |
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