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[Payment Processing](/categories/payments) 4. / 5. protonlabs/paypal-merchant-sdk-php ActiveLibrary[Payment Processing](/categories/payments) protonlabs/paypal-merchant-sdk-php ================================== PayPal Merchant SDK for PHP v3.13.0(5y ago)4157.0k↓15.7%Apache-2.0PHP >=5.4.0 Since Feb 25Compare [ Source](https://github.com/ProtonMail/paypal-merchant-sdk)[ Packagist](https://packagist.org/packages/protonlabs/paypal-merchant-sdk-php)[ Docs](https://developer.paypal.com)[ RSS](/packages/protonlabs-paypal-merchant-sdk-php/feed)WikiDiscussions Synced 1mo ago READMEChangelogDependencies (1)Versions (27)Used By (0) ### README not available The README for this package hasn't been synced yet. View it on [GitHub](https://github.com/ProtonMail/paypal-merchant-sdk). ### Health Score 39 — LowBetter than 86% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity36 Limited adoption so far Community19 Small or concentrated contributor base Maturity68 Established project with proven stability Bus Factor2 2 contributors hold 50%+ of commits 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 ~127 days Recently: every ~447 days Total 23 Last Release 2023d ago Major Versions v2.3.101 → v3.4.1022013-05-28 v2.4.103 → v3.5.1032013-06-11 v2.5.106 → v3.6.1062013-08-22 v2.11.117 → v3.8.1062014-10-16 v2.11.118 → v3.8.1072014-11-10 PHP version history (3 changes)v2.2.98PHP >=5.2.0 v3.4.102PHP >=5.3.0 v3.13.0PHP >=5.4.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/837170204c2dc6beffb28cfca8ff9036709ac38d5f5f16ab2b8b8a7cb025c089?d=identicon)[BafS](/maintainers/BafS) ![](https://www.gravatar.com/avatar/07337314fa7f579e749eb6f2565747bf75075974867e44153b8382999fc83a42?d=identicon)[bartbutler](/maintainers/bartbutler) --- Top Contributors [![ganeshx](https://avatars.githubusercontent.com/u/644158?v=4)](https://github.com/ganeshx "ganeshx (121 commits)")[![aydiv](https://avatars.githubusercontent.com/u/531806?v=4)](https://github.com/aydiv "aydiv (31 commits)")[![tkanta](https://avatars.githubusercontent.com/u/654936?v=4)](https://github.com/tkanta "tkanta (31 commits)")[![lvairamani](https://avatars.githubusercontent.com/u/1984252?v=4)](https://github.com/lvairamani "lvairamani (23 commits)")[![TomK](https://avatars.githubusercontent.com/u/299656?v=4)](https://github.com/TomK "TomK (11 commits)")[![jaypatel512](https://avatars.githubusercontent.com/u/1309895?v=4)](https://github.com/jaypatel512 "jaypatel512 (11 commits)")[![lathavairamani](https://avatars.githubusercontent.com/u/644422?v=4)](https://github.com/lathavairamani "lathavairamani (10 commits)")[![kumaravel-jayakumar](https://avatars.githubusercontent.com/u/1195567?v=4)](https://github.com/kumaravel-jayakumar "kumaravel-jayakumar (5 commits)")[![avidas](https://avatars.githubusercontent.com/u/873597?v=4)](https://github.com/avidas "avidas (4 commits)")[![diemuzi](https://avatars.githubusercontent.com/u/1476204?v=4)](https://github.com/diemuzi "diemuzi (4 commits)")[![BafS](https://avatars.githubusercontent.com/u/588205?v=4)](https://github.com/BafS "BafS (3 commits)")[![prannamalai](https://avatars.githubusercontent.com/u/1575082?v=4)](https://github.com/prannamalai "prannamalai (3 commits)")[![siddick](https://avatars.githubusercontent.com/u/159859?v=4)](https://github.com/siddick "siddick (3 commits)")[![braebot](https://avatars.githubusercontent.com/u/3358986?v=4)](https://github.com/braebot "braebot (2 commits)")[![YanivD](https://avatars.githubusercontent.com/u/5182244?v=4)](https://github.com/YanivD "YanivD (1 commits)")[![carsongregory](https://avatars.githubusercontent.com/u/1385764?v=4)](https://github.com/carsongregory "carsongregory (1 commits)")[![DrHazemAli](https://avatars.githubusercontent.com/u/24309945?v=4)](https://github.com/DrHazemAli "DrHazemAli (1 commits)")[![johnj](https://avatars.githubusercontent.com/u/42193?v=4)](https://github.com/johnj "johnj (1 commits)")[![jyggen](https://avatars.githubusercontent.com/u/264300?v=4)](https://github.com/jyggen "jyggen (1 commits)")[![KoichiWada](https://avatars.githubusercontent.com/u/1043491?v=4)](https://github.com/KoichiWada "KoichiWada (1 commits)") --- Tags phpsdkpaypal ### Embed Badge ![Health badge](/badges/protonlabs-paypal-merchant-sdk-php/health.svg) ``` [![Health](https://phpackages.com/badges/protonlabs-paypal-merchant-sdk-php/health.svg)](https://phpackages.com/packages/protonlabs-paypal-merchant-sdk-php) ``` ### Alternatives [cryptonator/merchant-php-sdk Cryptonator.com Merchant API SDK for PHP 2713.7k](/packages/cryptonator-merchant-php-sdk) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)