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

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

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

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.).

Wallets, payments, smart contracts, compliance, and more. Build stablecoin infrastructure with the Stablecoin Platform API.

Go/No-Go crypto trading signals, alert subscriptions, x402 payments, webhook HMAC verification, and MCP JSON-RPC 2.0 — zero runtime deps.

Rails engine providing Stripe payment API for SPAs

A Ruby gem for simulating Point of Sale operations against the Epos Now API. Generates realistic orders, payments, and transaction data for testing.

Generates realistic POS data (tickets, payments, menu items) in Heartland HRPOS sandbox for testing

Ruby gem for integrating with the PushPay payment processing API. Supports payments, recurring payments, anticipated payments, funds, merchants, organizations, settlements, batches, and webhooks.

A lightweight, framework-agnostic Ruby SDK for integrating PeyemAPI payments. Works with Rails, Sinatra, Hanami, and plain Ruby.

Builds CMI payment form parameters and SHA-512 hash; parses server callbacks.