A Ruby SDK for integrating with the Solidgate payment gateway 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 RubyGem that interfaces with the Authorize.net payment gateway

Use the Tester Stripped API to manage business including payment. customer, product and inventory management.

This is currently a dummy until a public beta is over

A simple gem to calculate amortizing loan payments, as part of training at Samyukti

This gem can help you integrate Alipay Dual-function Payment.

Integration with Sadad API! All required resources are included to make your payment with Sadad

A Ruby Interface to Alipay Payment Gateway. Unofficial.

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

Base gateway for Unlock's payment gateway integrations

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

Ruby Client for Genesis Payment Processing Gateway

This gem make it easier to implement payment system with Paidy

OffsitePayments for Pay2go

This Ruby Gem is the official reference client for the Block.io payments API. To use this, you will need the Dogecoin, Bitcoin, or Litecoin API key(s) from Block.io. Go ahead, sign up :)

PayU.in Payment Gateway integration for ActiveMerchant

PayUMoney.com Payment Gateway integration for ActiveMerchant

This library generates credit card numbers using the Luhn algorithm, suitable for testing payment systems and form validations.