Offline price oracle for Bitcoin. Offers programmable data providers (Bitcoin node, mempool, etc). Can be used from commandline, or integrated into existing ruby stacks.

VADER (Valence Aware Dictionary and sEntiment Reasoner) is a lexicon and rule-based sentiment analysis tool that is specifically attuned to sentiments expressed in social media.

A Vagrant plugin that provides support for provisioning machines using YAML configuration with multi-provider support

Validate HTML files as they leave your app by rack or by mail or by turbo-stream

Email validator that hits freemium providers one by one and returns normalized response.

Validates CNPJ and test it with matchers in a simple way.

Validates CPF and test it with matchers in a simple way.

Validates CURP and test it with matchers in a simple way.

Validates Host, Domain and IP and test it with matchers in a simple way.

Validates mexican RFC and test it with matchers in a simple way.

ValidatesTimeliness mongoid ORM compatability.

Validate if an association has unique values on a specific attribute.

An implementation of several error checking algorithms,including Luhn and Damm.

Extension to ActiveModel for validating hostnames

A Ruby gem that makes it easy to create value objects.

Groundskeeper to manage your rails application

Ruby Client for the Vault Gem

Vehiculum style guides and shared style configs.

Veracode hmac signing library used with Veracode API

Verboten Keys is a last line of defense to help prevent you and your team from accidentally leaking private information via your APIs.