OpalORM is a lightweight object-relational mapper for Ruby. With it you can define a schema for your models, and then set up relations between them for easy access in your project.

OpaqueId provides a simple way to generate unique, URL-friendly identifiers for your ActiveRecord models. Uses rejection sampling for unbiased random generation, ensuring perfect uniformity across the alphabet. Prevents exposing incremental database IDs in URLs and APIs.

OpenActive.io objects turned into strongly typed classes for use in Ruby. All classes can be serialized into JSON/JSON-LD, to provide easy conformance with the OpenActive Modelling Specification.

OpenAgent - SIF ADK (SIF Agent Development Kit)

ruby authentication client for OpenAm

A lots of service expose a more or less complex API. The library provides common tasks to easily build a ruby wrapper

OpenApiImport -- Import a Swagger or Open API file and create a Ruby Request Hash file including all requests and responses with all the examples. The file can be in JSON or YAML

RSpec matchers and shared examples for OpenApi

Simplify API integration testing with a succinct rspec DSL and generate Swagger files directly from your rspecs

OpenAuth2 is a simple OAuth2 client.

OpenAuth2 is a thin OAuth2 wrapper written on top of Faraday in Ruby.

Work with OpenBadges Issuer API

This gem is to make the writing and running of bots for OpenCorporates quick and easy

Automatic Open Control schema checking tool. Aims to provide quick tests that ensure controls work together reliably.

Open core client library: XDR

REST API to openCRX

OpenDMM: an open-source Japanese AV search engine

This project is an implementation of the openEHR specification on Ruby.

Works for both official API and self-hosted versions

Simple authentication endpoint for the Opener Web Services.