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

Ruby gem for generating signed payment headers and links using the x402 protocol with Solana and EVM chains. (supports x402 v2)

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

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.

REST API for electronic invoicing in France: Factur-X (CII), UBL 2.1, AFNOR PDP/PA, electronic signatures. ## 🎯 Main Features ### 📄 Invoice Generation - **Formats**: CII XML, UBL 2.1 XML, or Factur-X PDF/A-3 - **Profiles** (CII/PDF): MINIMUM, BASIC, EN16931, EXTENDED - **UBL**: Always EN16931 ...

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,...

A Ruby SDK for integrating with the Solidgate payment gateway API

A Ruby library for Frame Payments API that provides a convenient interface for making requests and handling responses.

Official Ruby client for billing.io -- non-custodial crypto payments with stablecoin settlement. Manage customers, checkouts, subscriptions, payouts, revenue tracking, entitlements, webhooks, and more.

A Ruby implementation for securely decrypting Google Pay PaymentMethodTokens using ECv2 protocol. Supports key rotation and multiple merchant configurations.

Convenient Ruby wrapper around YooKassa API v3. Supports payments, refunds, receipts, payouts, deals, webhooks, and more.

Use the PayQuicker API to manage payments, transfers, bank accounts, prepaid cards, users, and webhook events for payroll and payout workflows.

Implement Redsys HMAC SHA256 signature and payment parameters handling.

Ruby SDK for Multicard.uz — payment gateway supporting Uzcard, Humo, and 9 wallet apps (Payme, Click, Uzum, etc.). Invoices, card payments, splits, holds, payouts, card binding, and webhook verification.

Sample SDK for Stax Payments APIs

Rails engine for QPay V2 payment API with view helpers and webhook support

Ruby SDK for QPay V2 payment gateway API with auto token management.

The Boku Direct Payments API is a payment gateway API that enables merchants to accept payments through local payment methods such as digital wallets and carrier/mobile billing. It acts as a bridge between merchants and payment issuers (wallets, mobile carriers, etc.).