Repository Index

A Procfile-based process manager for Mac & Linux, supporting foreground/background modes, .env files, and scheduled tasks.

Crystal implementation of JMESPath, a query language for JSON

• crystal
• jmespath
• json

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.

Robust dependency injection service container framework

• crystal
• dependency-injection
• component

Blackjack written in Crystal

• blackjack
• crystal-lang
• console
• game

Crystal tools for providing different behaviour at compile-time based on semantic versions

Adds pledge(2) to crystal.

• crystal
• crystal-language
• shards
• openbsd

Crystal implementation of the Token-Oriented Object Notation(TOON) serialization format

• data-format
• llm
• serialization
• tokenizer

Implementation of the Observer pattern in crystal

• crystal
• shard
• design-pattern
• observable

A tool that provides an UML class diagram generator for any Crystal projects.

• crystal-lang
• diagram
• organize
• uml

Object/value validation library

• crystal
• validation
• component

📈 GDAX REST and WebSocket API wrapper to trade blockchain cryptocurrencies like bitcoin, Litecoin and Ethereum.

• blockchain
• gdax
• gdax-api
• coinbase

A crystal client for the Pinboard API

• pinboard
• api
• crystal

The simplest YAML to ENV config loader in Crystal

• env
• config-loader
• configuration-management
• envyable

crystal lang connect / HTTP proxy implementation

Crystal implementation of the Secure Remote Password protocol (SRP-6a)

MQTT client built in Crystal

• mqtt

Build/Runs your crystal application, watches files, and rebuilds/restarts app on file changes

A Crystal tool for generating CycloneDX Software Bill of Materials (SBOM) from Crystal shard projects.

• crystal
• cyclonedx
• cyclonedx-sbom
• sbom

A complete GraphQL client shard for the Crystal language inspired by Apollo client including error handling and planned support for caching, authentication and subscriptions.

• graphql
• crystal-language
• crystal-gql
• crystal-shard

Extension to the crystal lang ENV module to support reading secrets

Framework agnostic content negotiation library

• crystal
• component

GNU Scientific Library bindings for Crystal

Crystal implementation of the Cipher-based Message Authentication Code (CMAC)