Mock external requests for Capybara JavaScript drivers

A small, lightweight and extensible DynDNS server written with Ruby and Rack.

Redis output plugin for Fluent

A Ruby library for prying open files you can convert to a previewable format, such as video, image and audio files. It includes a number of parser modules that try to recover metadata useful for post-processing and layout while reading the absolute minimum amount of data possible.

GitLab metrics exporter to use with prometheus

llm.rb is a Ruby-centric toolkit for building real LLM-powered systems — where LLMs are part of your architecture, not just API calls. It gives you explicit control over contexts, tools, concurrency, and providers, so you can compose reliable, production-ready workflows without hidden abstractions. Built for engineers who want to understand and control their LLM systems. No frameworks, no hidden magic — just composable primitives for building real applications, from scripts to full systems like Relay. ## Key Features - **Contexts are central** — Hold history, tools, schema, usage, cost, persistence, and execution state - **Tool execution is explicit** — Run local, provider-native, and MCP tools sequentially or concurrently - **One API across providers** — Unified interface for OpenAI, Anthropic, Google, xAI, zAI, DeepSeek, Ollama, and LlamaCpp - **Thread-safe where it matters** — Providers are shareable, while contexts stay isolated and stateful - **Production-ready** — Cost tracking, observability, persistence, and performance tuning built in - **Stdlib-only by default** — Runs on Ruby standard library, with optional features loaded only when used ## Capabilities - Chat & Contexts with persistence - Streaming responses - Tool calling with JSON Schema validation - Concurrent execution (threads, fibers, async tasks) - Agents with auto-execution - Structured outputs - MCP (Model Context Protocol) support - Multimodal inputs (text, images, audio, documents) - Audio generation, transcription, translation - Image generation and editing - Files API for document processing - Embeddings and vector stores - Local model registry for capabilities, limits, and pricing

A comprehensive Ruby library for building Model Context Protocol (MCP) servers in Rails applications, featuring tools, resources, authentication, and real-time capabilities.

https://github.com/0dayinc/pwn/README.md

Recurring / Periodic / Scheduled / Cron job extension for Sidekiq

Parallel rspec test runner from a queue of pending jobs.

Twirp support for WebMock

Reproduce key concepts of Workato SDK, DSL, behavior and constraints.

Allows to define special attributes for ActiveAdmin panel to make it AJAX loadable and auto-updatable

see http://cpee.org

A configurable demo mode for your Rails app. Specify your desired "personas" and DemoMode will handle the rest.

You can control to DeployGate in your terminal

Create mock server from Openapi specification

Fluentd Output Plugin for PostgreSQL JSON Type.

Host gRPC-Web endpoints for Ruby gRPC services in a Rack or Rails app(over HTTP/1.1). Client included.

A basic but extensible Jekyll theme based on Bootstrap 5, with support for GitHub Pages and Bootstrap Icons.