This is the simple REST client for Payments Reseller Subscription API V1. Simple REST clients are Ruby client libraries that provide access to Google services via their HTTP REST API endpoints. These libraries are generated and updated automatically based on the discovery documents published by the service, and they handle most concerns such as authentication, pagination, retry, timeouts, and logging. You can use this client to access the Payments Reseller Subscription API, but note that some services may provide a separate modern client that is easier to use.

A comprehensive Ruby gem for generating loan amortization schedules with advanced features including grace periods, interest-only payments, federal bank holidays, and multiple interest calculation methods

trade, payment

PaddleRails is a production-ready Rails engine that drops a complete subscription management portal into your application in minutes. It's not just an API wrapper—it's a full-stack billing solution that handles the hard parts of SaaS payments: webhooks, plan upgrades, prorations, cancellation flows, and payment method updates. Fully compliant with Paddle Billing (v2), handling global tax/VAT and localized pricing automatically. Features: - Mountable billing dashboard ready in minutes - Built for Paddle Billing V2 - Two-way sync via webhooks - Beautiful UI built with Tailwind CSS - Uses GlobalID for bulletproof user mapping (no email mismatch issues) - Supports subscriptions on Users, Teams, Organizations, or Tenants - Payment history with invoice viewing and download - Plan upgrades/downgrades with proration - Payment method management No need to build billing UI from scratch. Just mount the engine and focus on your product.

Mountable rails engine which loads assets (svg files of payment icons) and provides a frozen_record model called PaymentIcon to access these through groups, names of icons, etc.

A comprehensive Ruby gem for integrating with Airwallex's global payment infrastructure, including payment acceptance, payouts, foreign exchange (FX rates, quotes, conversions), and multi-currency balance management. Features automatic authentication, idempotency guarantees, webhook verification, and unified pagination across all resources.

A comprehensive payment processing and business management API that enables seamless integration of cryptocurrency and traditional payment methods.

Server-side Ruby implementation of the x402 protocol providing Rack middleware to require payments and a facilitator client for verify/settle flows. Supports the 'exact' scheme across EVM and Solana networks.

Official AWS Ruby gem for Payment Cryptography Control Plane. This gem is part of the AWS SDK for Ruby.

Official AWS Ruby gem for Payment Cryptography Data Plane. This gem is part of the AWS SDK for Ruby.

A lightweight Ruby wrapper for the NOWPayments API that handles cryptocurrency payments, invoices, and webhooks

Our APIs allow easy and secure access to bank account data and payment initiation. The account data accessible are account holder's personal information, account balances, transaction history and much more. The available payment methods depend on the banks implementation but typically are domestic transfers, SEPA credit transfer, instant SEPA credit transfer, fast payment scheme, and SWIFT international payments.

A Ruby gem for integrating with RMA Payment Gateway API, including Payment Authorization, Debit payment request, and Payment OTP confirmation.

A Ruby gem for integrating with Zai payment platform APIs.

A Ruby gem for integrating with Digital Kidu Payment Gateway API, supporting pull payments, intra-bank transactions, QR generation, and transaction status verification.

Ruby gem for generating signed payment headers and links using the x402 protocol. Supports USDC payments on Base and other EVM networks with EIP-712 signing.

Official Adyen API Library for Ruby. Simplifies integrating with the Adyen API,\ including Checkout, Marketpay, payments, recurring, and payouts. For support please reach out to \ support@adyen.com. If you would like to contribute please submit \ a comment or pull request at https://github.com/Adyen/adyen-ruby-api-library.

A Ruby gem that provides a unified interface for integrating with KAMONEY (PIX payments) and NOWPAYMENTS (cryptocurrency payments) APIs

A ruby gem for integration of your backend with the payment services provided by Efí Pay

This gem provides methods to calculate EMI, total interest, and total payment amount for a given loan principal, interest rate, and tenure.