generated: '2026-07-21' method: searched source: https://worldline.com/en-in/home/top-navigation/developers notes: >- TechProcess Payment Services is the Indian payment-gateway business now operating as Worldline India / ePayments India, whose merchant checkout product is Paynimo. The first-party client libraries below are published on the Worldline India ePayments GitHub organizations and on pub.dev, and are the official integration SDKs for the TechProcess / Paynimo payment gateway. packages: - language: dart registry: pub.dev name: weipl_checkout_flutter url: https://pub.dev/packages/weipl_checkout_flutter install: flutter pub add weipl_checkout_flutter official: true notes: Official Worldline India (WEIPL) Paynimo Checkout Flutter plugin. - language: javascript registry: github name: PHP-CHECKOUTJS url: https://github.com/Worldline-Ind/PHP-CHECKOUTJS official: true notes: PHP server-side Checkout.js integration sample. - language: java registry: github name: Worldline-Ind/JAVA url: https://github.com/Worldline-Ind/JAVA official: true notes: Java server-side Paynimo checkout integration. - language: csharp registry: github name: Worldline-Ind/DOT-NET url: https://github.com/Worldline-Ind/DOT-NET official: true notes: .NET server-side Paynimo checkout integration. - language: php registry: github name: Worldline-Ind/PHP-CHECKOUTJS url: https://github.com/Worldline-Ind/PHP-CHECKOUTJS official: true notes: PHP server-side Paynimo checkout integration. - language: ruby registry: github name: Worldline-Ind/ROR url: https://github.com/Worldline-Ind/ROR official: true notes: Ruby on Rails server-side Paynimo checkout integration. - language: python registry: github name: PYTHON-CHECKOUTJS url: https://github.com/Worldline-Ind/PYTHON-CHECKOUTJS official: true notes: Python server-side Paynimo checkout integration. - language: dart registry: github name: weipl-checkout-cordova url: https://github.com/Worldline-ePayments-India/weipl-checkout-cordova official: true notes: Cordova / Ionic / PhoneGap Paynimo Checkout plugin.