Memoizer caches the results of your method calls, works well with methods that accept arguments or return nil. It's a simpler and more expicit alternative to ActiveSupport::Memoizable

Ruby memory profiler for >= Ruby 2.1.0

Mengpaneel gives you a single way to interact with Mixpanel from your Rails controllers, with Mengpaneel taking it upon itself to make sure everything gets to Mixpanel.

MeowCop is a RuboCop configuration recommended by Sider.

This gem allows developers to use the services available in the MercadoPago API (http://www.mercadopago.com)

A binary tree of one-time singatures known as a merkle tree. Often used in distributed systems such as Git, Cassandra or Bitcoin for efficiently summarizing sets of data.

Ruby on Rails Gem for the Facebook Messenger Platform

This gem gives you a custom markdown parser that allows you to prefix the markdown itself with YAML metadata.

Automatically generate model layout for iOS project.

metar-parser is a ruby gem that downloads weather reports, parses them and formats reports. It also provides weather station listings and info (e.g. country, latitude and longitude). Reports can be fully localized (currently Brazilian Portuguese, English, German and Italian are available).

Rails-style method hooks for plain old Ruby objects

Metior is a source code history analyzer that provides various statistics about a source code repository and its change over time.

Rails tagging system that stores tags in a PostgreSQL array column or an SQLite JSON column — no join tables, no extra models, no N+1 queries.

Wrapper for Yandex.Metrika API

Smoggy API

Smoggy AWS API

Microscope adds useful scopes targeting ActiveRecord boolean and datetime attributes.

Microsoft Kiota Abstractions - Ruby abstractions for building library agnostic http client

Kiota Authentication implementation with oauth2

Kiota HttpCore implementation with Faraday