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open-source coding agent

High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

A HUD for Claude Code, Codex and 25 more coding agents. Know your quotas, tokens and sessions at a glance, answer requests and jump back in one click. On Mac, Windows and Linux, your phone and your watch.

The ultimate harness for coding agents and beyond. All your agents. All your machines. One command center. Start with code, then follow your curiosity and build across disciplines: CAD, circuits, robots, games and music.

Create reusable bots powered by Claude Code, Codex, or OpenCode. Run them locally across your repositories with persistent threads and permissions you control.

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

AI Kanban & Development Environment. Orchestrate multiple agents, review changes, open PRs. Multi-provider, self-hostable, no telemetry.

A native control plane for Claude Code, Codex, Cursor, Devin and other coding agents.

The IDE you know, rebuilt in Rust. IntelliJ IDEA–style keymap, tool windows and search-everywhere in a fast native app: editor, code insight, debugger, Git, terminal, database and HTTP clients for 60+ languages.

Plan, run and supervise fleets of agents from task to merged PR. Desktop (macOS, Windows, Linux) + iPhone & Android apps. Supports Claude Code, Codex & 35+ coding agents.

Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

Incremental rust builds up to 92x faster than cargo/rustc

Pass the baton from Claude Code or Codex to a local DeepSeek Harness. An MCP server that hands off tasks and brings the result back.

Component layer for AI agents: implementation-aware contracts for building project-native interface components.

Find leaked secrets everywhere.

Give cloud AI agents a real development environment on your own machines.

The one and only agent harness for complex codebases. Project memory, planning, execution, and verified completion inside Codex.

🙌 OpenHands: AI-Driven Development

px0 is an IDE built for reviewing AI-generated code, optimized for speed. It turns your browser into a zero-latency console with native Git and GitHub integrations, instant search across massive codebases, and seamless handoff to local AI coding harnesses.

Native client for Herdr on macOS, Linux, and Windows, built with Rust and GPUI. View terminal sessions, workspaces, Git worktrees, and agent activity through your local Herdr daemon.