weirdbricks/krikri

Fast Ansible-compatible automation in Crystal - no Python required

ShiningRay/celerite

A high-performance, Bundler-compatible Ruby dependency manager written in Crystal.

cloudamqp/lavinmq

Ultra quick message queue and streaming server

rzonedevops/crystalcog

cogpy/crystalcog

CrystalCog is a comprehensive rewrite of the OpenCog artificial intelligence framework in the Crystal programming language. This project provides better performance, memory safety, and maintainability while preserving all the functionality of the original OpenCog system.

9cog/crystalcog

Crystal-Matter/matter

A complete Crystal lang implementation of the Matter protocol specification (https://buildwithmatter.com). Includes full support for controller, device, commissioning, secure communications, device types, and cluster definitions.

stevegeek/marten-mcp

Model Context Protocol (MCP) server for Marten: stateless and tools-only, speaking the 2026-07-28 revision and the two before it.

stevegeek/marten-profile-log

Per-request tracer for Marten that separates Postgres pool-wait from query time. Does nothing unless PROFILE=1, so it is safe in production.

stevegeek/marten-pg-resilience

Patches crystal-pg to retry Postgres TLS connections killed while idle, instead of failing the request with a 500.

stevegeek/marten-cdn-cache

Rule-based Cache-Control middleware for Marten, for CDN caching: public, immutable-asset and private policies; strips cookies on cacheable rules.

stevegeek/marten-seo

Marten SEO: `<head>` meta / OpenGraph / Twitter / JSON-LD tags + sitemap.xml/robots.txt handlers + a multi-locale (hreflang) page registry.

stevegeek/marten-text

Rails ActionText for Marten: rich-text content on any model, with Markdown bodies, rendering and syntax highlighting.

stevegeek/marten-global-id

Rails GlobalID::Locator.locate_signed analog for Marten — HMAC-signed (model_class, pk) tokens with an opt-in allowlist

stevegeek/marten-fixtures

Rails-style YAML fixtures for Marten (Crystal): label references, Rails-compatible deterministic IDs and foreign-key auto-resolution.

stevegeek/marten-encoded-id

Encoded IDs for Marten models: reversible, URL-safe tokens (Hashids or Sqids) with optional prefixes and slugs. Built on encoded-id-cr.

stevegeek/marten-delegated-type

Rails' delegated_type for Marten, built on Marten's polymorphic fields.

stevegeek/web-escape

Crystal shard for dependency-free HTML/JSON/URI escaping (WebEscape) for safe <script>, JSON-LD, and attribute output.

stevegeek/operation-cr

Operation is a callable "Command" pattern, with composable chains and compile-time partial application — a Crystal port of stevegeek/typed_operation.

stevegeek/encoded-id-cr

Crystal port of stevegeek/encoded_id