Everything Claude Code

OpenClaude is an open-source, terminal-first coding-agent CLI for cloud and local model providers. It connects to OpenAI-compatible APIs, Gemini, GitHub Models, Codex, Ollama, Atomic Chat, and other supported backends, providing prompts, streaming output, Bash and file tools, grep, glob, agents, tasks, MCP, slash commands, web search and fetch, and image inputs for compatible providers. The CLI supports guided provider setup with saved profiles, conversation continuation and forking, detached local background sessions, model-specific agent routing, repository maps based on PageRank-ranked code structure, and a headless bidirectional-streaming gRPC server for integrations, CI/CD pipelines, and custom interfaces. A bundled VS Code extension provides launch integration, in-editor chat, provider-aware controls, and theme support. OpenClaude runs on Node.js 22 or newer, is distributed through npm and an Arch Linux AUR package, and can use local inference or remote APIs. Its repository is licensed MIT for the project's modifications and states that it is an independent community project derived from and substantially modified from the Claude Code codebase, without Anthropic affiliation.

Klaat Code is an open-source, terminal-native AI coding agent from KlaatAI. It reads and edits project files, runs shell commands, performs type checks after edits, and asks for permission before risky operations. It supports planning, sub-agents, MCP, hooks, and skills, and indexes projects into a code knowledge graph containing symbols, callers, callees, and semantic-search data for targeted exploration. Its hosted Klaatu-o1 router classifies each request and dispatches it across six model-cost tiers—nano, fast, code, reason, heavy, and titan—rather than using one model for every task. The CLI is a thin client to this service; the repository states that routing decisions, model health tracking, pricing, and the code-graph index run server-side. It supports providers and models including Claude, GPT, Gemini, and DeepSeek, and can be installed with npm.

Munder Difflin is a free, open-source desktop multi-agent harness that runs multiple terminal-based AI coding agents as coordinated local agents. It wraps agents including Claude Code, OpenAI Codex, Gemini CLI, Qwen, OpenCode, GitHub Copilot CLI, and custom commands, working with users' existing subscriptions and hourly usage limits. Each agent runs as a real node-pty process and is rendered through xterm.js, while an Electron and React interface displays sessions as avatars on a Pixi.js office floor. A GOD orchestrator called Michael assigns and routes work, adjudicates agent messages, and escalates spending, destructive operations, scope changes, and other configured approvals. Agents coordinate through a local Git-backed hive of plain-file memory, atomic mailboxes, a shared blackboard, and an append-only event log; a markdown-first semantic memory layer supports recall across sessions. Optional Git worktrees isolate parallel agents.

claude-db is a persistent-memory and code-graph system for Claude Code. It captures project context through hooks and injects recalled context into prompts, while its MCP server provides text search, symbol-usage, code-explanation, and dependency-path modes. Memory uses SQLite by default and can be configured to use shared MongoDB or PostgreSQL storage. The `scan` command builds the code graph and hashes files so later scans re-parse only changed files; TypeScript, TSX, JavaScript, Python, Go, Rust, and Ruby receive structured parsing, while other listed languages are analyzed by pattern matching with inferred references. It is distributed as an npm CLI and can install its Claude Code hooks and MCP configuration per project.

Academic Research Skills for Claude Code is an open-source suite of Claude Code skills for academic research and publication workflows, maintained by Cheng-I Wu. It provides separate deep-research, academic-paper, academic-paper-reviewer, and academic-pipeline skills for literature reviews, systematic reviews, guided research, drafting, citation conversion, revision, peer review, rebuttal auditing, methodology review, and re-review. The suite uses staged, human-in-the-loop workflows with multi-agent orchestration, Socratic checkpoints, style calibration, writing-quality checks, citation formatting, and outputs in Markdown, DOCX when Pandoc is available, and LaTeX/PDF through tectonic. Its pipeline orchestrator connects activities through ten stages, user-confirmation checkpoints, Material Passport handoffs, claim and citation verification, integrity gates, and final process summaries. Citation verification can cross-check references against Semantic Scholar, OpenAlex, Crossref, and arXiv when available.