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Open-source, local-first 3D architectural building editor built with React Three Fiber and WebGPU. Features a local CLI and authenticated MCP service connecting AI agents (Claude Code, OpenAI, Codex) to inspect 3D scenes, perform structural exploded views, section cuts, MEP X-ray inspection, and bounded furniture fitting.
S
significant-gravitas/autogpt
A team of AI experts you brief in plain English: Otto coordinates specialists for content, prospect research and admin work, with a drag-and-drop workflow builder and a marketplace. Self-host it free with Docker using your own model keys or a local model through Ollama.
O
A skills library and development methodology for AI coding assistants: clarify requirements before coding, plan in small tasks, write tests first (TDD), and hand tasks to subagents with a review after each. Works with Claude Code, Codex, Cursor, Gemini CLI and 12 more tools. Free, MIT license.
A
An agent-harness performance optimization system you install once so it becomes how your coding agent works: plan before building, verify with tests, self-review from a fresh context, remember what matters and turn repeated wins into reusable skills. Ships 68 agents, 292 skills, 94 commands, hooks, memory, continuous-learning instincts and AgentShield security scanning. Best with Claude Code, with a supported Codex sync path and capability-limited adapters for Cursor, OpenCode, Gemini, Zed and Copilot.
D
davila7/claude-code-templates
A ready-to-use configuration catalog for Claude Code: 100+ specialised agents, slash commands, skills, hooks, settings and MCP integrations, each installable with a single npx command. It also ships a real-time analytics dashboard for your coding sessions, a mobile conversation viewer and a health-check diagnostic. Browse the whole catalog at aitmpl.com and copy the install command instead of writing configs by hand.
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Open-source web data API that turns any URL into clean markdown, structured JSON or screenshots ready for an LLM. Covers 96% of the web including JS-heavy pages, P95 latency of 3.4s, and parses web-hosted PDFs and DOCX too. SDKs for nine languages, plus one-command skill and MCP integration for coding agents.
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Open-source app that orchestrates a team of AI agents like a company: org charts with titles and reporting lines, monthly per-agent budgets with hard stops, heartbeats that wake agents to work on a schedule, tickets that persist across reboots, approvals and an immutable audit log. Works with Claude Code, Codex, Cursor, OpenClaw, bash and HTTP bots.
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Context compression layer for AI coding agents, reducing JSON and log tokens by 60-95% with lossless reversibility.
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rohitg00/ai-engineering-from-scratch
Free, open-source AI engineering curriculum: 523 lessons across 20 phases, building everything from raw math to LLMs, agents and swarms; every lesson ships a prompt, skill, agent or MCP server, with an AI tutor that runs inside your coding agent.
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Autonomous AI agent for penetration testing, automated vulnerability exploitation and security reporting.
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primeintellect-ai/prime-agent
Self-improving coding agent built on persistent IPython REPL with autonomous subagent spawning and communication.
B
browser-use/browser-harness
Automated browser control harness for AI agents with DOM extraction, visual screenshots, and web interaction.
M
CLI and macOS app that turns off around 180 background services an iOS Simulator does not need (Siri, Spotlight, iCloud, widgets…), cutting each simulator’s memory roughly 4x (4.0 GB to 0.9 GB) so one Mac can run many more simulators for development, testing, and CI.
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harnessrouter/systemoneharness
Open-source harness that turns a System One decision model such as TypeSafe's Jev into an agent loop: one model call per step, only declared actions, risk-based confidence gates and complete traces. Works with Python processes, MCP servers, browsers and the UHP protocol.
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Microsoft's official Python tool for converting PDF, Word, Excel, PowerPoint, Outlook MSG, images, audio and YouTube transcripts into tidy Markdown for prompts, RAG pipelines and agents. One command for every format, install only the extras you need, plus an OCR plugin and optional Azure Document Intelligence.
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A skill plus a local proxy that makes AI coding agents say less and read less: 33.2% fewer input tokens (pinned 54-run Claude Code suite) and 8.5% fewer output tokens per JetBrains' independent A/B, with no detectable quality change. Works with 30+ agents, one command, no account or API key.
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Agent Development Environment (ADE) leveraging isolated Git Worktrees for concurrent multi-agent software engineering.
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Agent meta-harness orchestrating multi-agent swarms with adaptive memory and self-learning for Claude Code and Codex.
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Agent-native personalized AI tutoring system from HKUDS, providing interactive multi-step educational guidance.
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Open-source (MIT) platform from Tsinghua University: type a topic or upload a document and AI builds a whole interactive classroom with lesson pages, quizzes, simulations and AI teachers and classmates. Exports pptx or html. Self-host with Docker; needs an AI service API key (usually pay-per-use) or a local model.
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Tencent open-source AI knowledge platform featuring hybrid vector/keyword search, knowledge graphs, and agent CLI.
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Automated job application pipeline with anti-detect browser automation and AI-tailored resume submissions.
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Comprehensive SEO audit plugin for Claude Code running 15+ specialist agents for technical SEO, Schema, and GEO/AEO.
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Official GreenSock AI knowledge base and ruleset for coding agents to write leak-free, high-performance web animations.
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xiaoduoya/codex-with-chatgpt
Bridge connecting web-based ChatGPT interfaces to the OpenAI Codex harness for cost-effective agentic coding.
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Open-source offline AI office suite featuring byte-preserving round trips for Word, Excel, and PowerPoint.
D
Open-source, 100% local ElevenLabs alternative for voice cloning, dubbing, and dictation supporting 646 languages.
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Free and open-source alternative to AirDrop: share files and messages between nearby devices over your local network, with no internet connection and no third-party servers. Runs on Windows, macOS, Linux, Android and iOS; files are transferred as-is (no chat-app recompression), folders are sent recursively, traffic is HTTPS-encrypted and no account is needed. Install via winget, Homebrew, Flatpak, the App Store or Play Store.
D
Multi-provider AI gateway connecting 352+ providers, featuring RTK token compression and automatic fallback routing.
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Ultra-fast, memory-efficient LLM fine-tuning library saving 70-80% VRAM with manual Triton autograd kernels.