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[Authentication & Authorization](/categories/authentication) 4. / 5. 2amigos/2fa-library ActiveLibrary[Authentication & Authorization](/categories/authentication) 2amigos/2fa-library =================== 2 Factor Authentication (2FA) library 3.0.0(2y ago)34367.1k↓20.1%10[3 PRs](https://github.com/2amigos/2fa-library/pulls)7BSD-3-ClausePHPPHP >=7.4 Since Aug 28Pushed 2y ago3 watchersCompare [ Source](https://github.com/2amigos/2fa-library)[ Packagist](https://packagist.org/packages/2amigos/2fa-library)[ Docs](http://www.2amigos.us/open-source/details/twofa-library)[ RSS](/packages/2amigos-2fa-library/feed)WikiDiscussions master Synced 1mo ago READMEChangelog (2)Dependencies (8)Versions (10)Used By (7) 2fa library =========== [](#2fa-library) [![tests](https://github.com/2amigos/2fa-library/actions/workflows/ci.yml/badge.svg)](https://github.com/2amigos/2fa-library/actions/workflows/ci.yml)[![Latest Version](https://camo.githubusercontent.com/e389f150528410e7348f7b2db68e889ac08eb2c7edce3b38f09b17c1aea8605c/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f7461672f32616d69676f732f3266612d6c6962726172792e7376673f7374796c653d666c61742d737175617265266c6162656c3d72656c65617365)](https://github.com/2amigos/2fa-library/tags)[![Software License](https://camo.githubusercontent.com/b60331a2084501dc07cf6d6964c0da58dd005d89c45cf3b28b4b22b60f5ec00f/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4253442d627269676874677265656e2e7376673f7374796c653d666c61742d737175617265)](LICENSE.md) This library allows developers to implement Time Based One Time Passwords (TOTP) for the PHP implementation of the 2factor Authentication (2FA), supporting both the HMAC-based one-time password (HOTP) and the time-based one-time passwords (TOTP). Documentation ------------- [](#documentation) You can read the latest docs on Contributing ------------ [](#contributing) Please see [CONTRIBUTING](CONTRIBUTING.md) for details. Credits ------- [](#credits) - [Antonio Ribeiro Google 2FA](https://github.com/antonioribeiro/google2fa) - [Antonio Ramirez](https://github.com/tonydspaniard) - [All Contributors](../../contributors) License ------- [](#license) The BSD License (BSD). Please see [License File](LICENSE.md) for more information. > [![2amigOS!](https://camo.githubusercontent.com/9fd8f1de41dc23003bb2a54034cb6658dde5be97092e195a62d629d0d7fa7f6c/687474703a2f2f7777772e67726176617461722e636f6d2f6176617461722f35353336333339346437323934356666376564333132353536656330343165302e706e67)](http://www.2amigos.us) *Web development has never been so fun!* [www.2amigos.us](http://www.2amigos.us) ### Health Score 43 — FairBetter than 91% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity48 Moderate usage in the ecosystem Community21 Small or concentrated contributor base Maturity69 Established project with proven stability Bus Factor1 Top contributor holds 66.7% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~292 days Recently: every ~578 days Total 9 Last Release 849d ago Major Versions 1.0.3 → 2.0.02020-01-31 2.0.2 → 3.0.02024-01-20 PHP version history (3 changes)1.0.0-betaPHP >=5.6 2.0.0PHP >=7.3 3.0.0PHP >=7.4 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/566016?v=4)[Antonio Ramirez](/maintainers/tonydspaniard)[@tonydspaniard](https://github.com/tonydspaniard) --- Top Contributors [![2amjsouza](https://avatars.githubusercontent.com/u/142612126?v=4)](https://github.com/2amjsouza "2amjsouza (10 commits)")[![tonydspaniard](https://avatars.githubusercontent.com/u/566016?v=4)](https://github.com/tonydspaniard "tonydspaniard (5 commits)") --- Tags 2amigos2faauthenticationlibraryphptwo-factorphphotptotplibrary2faextensionauthenticator2amigos ### Code Quality TestsPHPUnit Code StylePHP CS Fixer ### Embed Badge ![Health badge](/badges/2amigos-2fa-library/health.svg) ``` [![Health](https://phpackages.com/badges/2amigos-2fa-library/health.svg)](https://phpackages.com/packages/2amigos-2fa-library) ``` ### Alternatives [chillerlan/php-authenticator A generator for counter- and time based 2-factor authentication codes (Google Authenticator). PHP 8.2+ 58119.1k2](/packages/chillerlan-php-authenticator)[paragonie/multi-factor Vendor-agnostic two-factor authentication library 142195.5k2](/packages/paragonie-multi-factor)[jiripudil/otp Library that generates and verifies one-time passwords. 2825.4k1](/packages/jiripudil-otp)[kelunik/two-factor Two factor authentication. 371.9k1](/packages/kelunik-two-factor) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)