This gem reads exchange rates from the National Bank of the Republic of Belarus website. It uses it to calculates exchange rates. It is compatible with the money gem

A Money.gem compatible currency exchange rate implementation for Nordea Bank

Allows a model of your choosing (such as users) to subscribe to a plan, which enables features.

Paypal IPN integration library for rails and other web applications

Pipedrive gem support for activites, activity-types, deals, deal fields,organizations, organization fields, persons, pipelines, recents, search, users, and a bonus addition a currency exchange calculator.

Resources backed by protobuf messages

Redis-backed Bank for the Money gem based on the VariableExchange Bank

Redis-backed Bank for the Money gem based on the VariableExchange Bank

Ruby prompt pay QR-code generator

Next Generation Service Description Language

This alpha release of Bookkeeper is intended for community feedback; please be advised that it will undergo significant changes between now and its 1.0 release.

A wrapper library for the SureTax communications tax API

Tango Card provides a RaaS API for developers (https://www.tangocard.com/docs/raas-api/). This gem provides commonsense Ruby objects to wrap the JSON endpoints of the RaaS API.

API client for ticketinghub.com

Клиент для приема оплаты через walletone.com

Replicate any API to your database with WebhookDB. WebhookDB handles webhooks and intelligently polls APIs to provide a normalized, schematized, relational copy of API data. No new APIs to learn -- just an easy-to-use CLI to set up integrations, and then you get a database connection string to access your data. WebhookDB keeps everything up to date, automatically. Explore the extensive documentation at https://docs.webhookdb.com.

Provide support for CardFlex's standard integration and stored profile tokenization integrations.'

This gem integrate Rails with ecpay (綠界科技).

Active Merchant is a simple payment abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

ActivePayment is an abstraction layer for different Payment-Interfaces (XML, JSON)