Nordea::Siirto implements requests according to Nordea Siirto protocol, which enables real time payments for select Finnish bank accounts

Gives minimally intrusive access to Global Collect's payment processing API. Currently implements a very small segment of the full API but is built with extensibility in mind.

Ruby client to process mobile payment with Orange Money webpay API.

Integration with TNS Payments Gateway

The Bleumi Pay SDK helps you integrate Algo, Algorand Standard Asset, Ethereum, ERC-20, RSK, RSK ERC-20 & xDai payments and payouts into your business or application. The SDK bundles 'Bleumi Pay API' into one SDK to ease implementation and support.

Payment, temperature, sleep, mood, thought, etc.

Buckaroo payment gateway (see http://www.buckaroo.nl)

all the information about thingspace

Create bitcoin payment requests easily

BitPesa is a payment provider. See https://bitpesa.com for details.

Ruby library for integrating with the MundiPagg payment web services

API wrapper for transferuj.pl payments

To interact with BillsPayment's API

A Ruby client for the HBCI-compliant Hibiscus payment server.

Adds PayPal API Checkout as a Payment Method to Spree Commerce

Ruby wrapper for Portmone payment system API

Ruby library for integrating with the MundiPagg payment web services

A simple payu payment gem

A Ruby toolkit for Tipalti Payments

SDK for Payment Service Provider(PSP) to make payments. See https://developer.mastercard.com