Best CLI Utilities GitHub Repositories

Monorepo for StartOS, StartWRT, StartTunnel, start-sdk, start-docs, start-cli, start-registry, patch-db, and various shared libraries

Generate Swift client and server code from an OpenAPI document.

Terminal API client for HTTP, GraphQL and gRPC. Plain .http files you can diff and version, with workflows, mocks, profiling, tracing, OpenAPI import, SSH tunnels, Kubernetes port-forwards, WebSocket, SSE and a CLI runner.

Terminal-based messaging client for Linux and macOS with Telegram, WhatsApp and Signal support

Feature-filled Bittorrent client based on the Azureus open source project

Local-first AI token usage & cost tracker for 31 coding tools incl. Claude Code, Codex, Cursor, Gemini & DeepSeek Harness—with native apps. Never reads prompts.

Build standalone portable PHP binaries on Linux, macOS, Windows, with PHP project together, with popular extensions included.

The official command line client for Cloud Foundry

Bulk domain availability checking via RDAP, DNS, and WHOIS, with prefix/suffix permutations, regex patterns, MCP, and multiple output formats

PHP client for beanstalkd queue

High-level Elasticsearch Ruby framework based on the official elasticsearch-ruby client

Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation

Elixir plugin for JetBrain's IntelliJ Platform (including Rubymine)

Open-source, AI-native knowledge base & Evernote alternative with native MCP. Zero-cost on Cloudflare or Docker.

An unofficial desktop client for Jellyfin

One-stop shop for building AI-powered products and businesses with Stripe.

An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client https://github.com/besu-eth/besu/wiki

High-performance code-intelligence engine for AI agents and IDE, supports 257 languages, multi repositories, based on graph, with access via CLI, MCP Server, and API. AI coding agents teammate - expose only needed information, cutting token usage up to 50x. 100% local. Discord: https://discord.gg/39MFHu3J5d

Web, Desktop & Mobile client and orchestrator for Codex, Claude Code, OpenCode, Pi, Cursor, Grok, Antigravity, Kimi, Augment Code, Qwen, fully end-to-end encrypted

Android app to create home screen shortcuts that trigger arbitrary HTTP requests and more