A custom validation for your Active Model that check if an array is included in another one

Ambry is not an ORM, man! It's a database and ORM replacement for (mostly) static models and small datasets. It provides ActiveModel compatibility, and flexible searching and storage.

Provides ActiveModel compatible wrappers for Braintree models and more.

BrNfe é uma gem para projetos Ruby on Rails que tem como objetifo facilitar e padronizar a emissão de Notas Fiscais eletrônicas

ActiveRecord-ish DynamoDB ORM

Define schemas using a clean DSL and get both JSON Schema documents and runtime validations. Perfect for API request/response validation, LLM function definitions (OpenAI, Anthropic), and structured data modeling. Features Sorbet-style types, schema composition, pluggable validation adapters, and multiple error output formats (JSON:API, RFC 7807).

ActiveModel email validator. Checks MX records for domains. Allows you to block free/disposable email providers

Faceted provides set of tools, patterns, and modules for use in API implementations.

Factories via fixtures

Pure Ruby readonly serializers for the JSON:API spec.

Rfm is a standalone database adapter for Filemaker server. Ginjo-rfm features multiple xml parser support, ActiveModel integration, field mapping, compound queries, logging, scoping, and a configuration framework.

include Gollum into Rails with ease

Create ActiveModel-compliant objects for your JSONAPI-based API

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LedgerSync is a simple library that allows you to sync common objects to popular accounting software like QuickBooks Online, Xero, NetSuite, etc.

The easier way to use Moip's transparent checkout.

OM (Opinionated Metadata): A library to help you tame sprawling XML schemas like MODS. Wraps Nokogiri documents in objects with miscellaneous helper methods for doing things like retrieve generated xpath queries or look up properties based on a simplified DSL

With Params validator oyu should be able to perform controller params validation easy and with any kind of type, format, or custom validation you already know and use in oyur models.

Parse Server Ruby Client. Perform Object-relational mapping between Parse Server and Ruby classes, with authentication, cloud code webhooks, push notifications and more built in.

Parse user agent to deduce the platform.