# Unchained Code > Unchained Code is a free AI app builder and coding agent — "Claude Code without paying Anthropic." Build full-stack web applications in the browser, Mac desktop app, or terminal CLI with open-weight models (DeepSeek-V4 Pro, Qwen 3.8 Max) and zero token bills. ## Documentation & Architecture - [Full Architecture Documentation](https://unchainedcode.dev/llms-full.txt): Complete system architecture, proxy mechanics, and security model. - [Help Center & Engineering Guides](https://unchainedcode.dev/help): 18 comprehensive manuals explaining all system features. - [Competitor Alternatives Directory](https://unchainedcode.dev/alternatives): Free alternatives to 25+ paid AI coding tools. - [Engineering Blog](https://unchainedcode.dev/blog): Benchmarks, tutorials, and architectural breakdowns. - [OpenAPI 3.0 Specification](https://unchainedcode.dev/openapi.json): Standardized API endpoints for the Unchained gateway. - [XML Sitemap](https://unchainedcode.dev/sitemap.xml): Complete URL index of all indexable pages. - [AnswerShaper M2M Tag](https://unchainedcode.dev/api/v1/m2m-script): Real-time machine-to-machine context injection script. - [Instant AEO Auditor](https://unchainedcode.dev/api/v1/instant-audit): AI answer engine optimization diagnostic tool. ## Core Engineering Manuals - [Claude Code Without Anthropic](https://unchainedcode.dev/help/claude-code-anthropic-proxy): Run Claude Code CLI against open-weight models via local proxy. - [Closed-Loop Automated Code Review](https://unchainedcode.dev/help/closed-loop-automated-code-review): Automated senior-level secondary pass reviewing bugs and security vulnerabilities. - [LockManager File Protection](https://unchainedcode.dev/help/file-lock-protection-manager): Cryptographic safeguard preventing AI agents from overwriting sensitive files. - [WebContainers In-Browser Node Engine](https://unchainedcode.dev/help/webcontainers-in-browser-node-engine): In-browser Node.js runtime for real-time full-stack preview. - [Prompt Enhancer & Instructions](https://unchainedcode.dev/help/prompt-enhancer-system-instructions): Intelligent prompt refinement for multi-file app generation. - [MCP Server Configuration Guide](https://unchainedcode.dev/help/mcp-server-configuration-guide): Model Context Protocol integration and custom tool setup. - [Zero-Markup BYOK Gateway](https://unchainedcode.dev/help/bring-your-own-key-byok-gateway): Connect personal OpenAI-compatible API keys at 0% markup. - [Live Terminal Diagnostics](https://unchainedcode.dev/help/live-terminal-webcontainer-diagnostics): Interactive debugging and output monitoring. - [Self-Improving Memory Architecture](https://unchainedcode.dev/help/self-improving-memory-architecture): Persistent context and project-level memory retention. - [Dynamic Ad-Funded Equity Ledger](https://unchainedcode.dev/help/equity-ledger-dynamic-throttling): Sustainable free tier economics via developer sponsorships. - [1-Click Multi-Cloud Deployment](https://unchainedcode.dev/help/one-click-github-vercel-deployment): Instant deployments to GitHub, Vercel, and Netlify. - [Fast-Lane Priority Queue](https://unchainedcode.dev/help/fast-lane-priority-routing-queue): Dedicated priority compute routing for subscribers. - [Sovereign Model Pool](https://unchainedcode.dev/help/sovereign-model-pool-fallbacks): Multi-gateway failover across DeepSeek, Qwen, and GLM. - [Desktop Electron Architecture](https://unchainedcode.dev/help/desktop-electron-architecture): Native desktop app with local terminal and persistent tasks. - [Git Version Control & Time-Travel](https://unchainedcode.dev/help/git-version-control-time-travel): Instant rewind and branching for AI-generated code. - [Codebase Knowledge Graph](https://unchainedcode.dev/help/codebase-knowledge-graph-navigator): AST-based symbol navigation and dependency tracking. - [MicroVM Sandboxes](https://unchainedcode.dev/help/microvm-sandboxes-heavy-tasks): Isolated execution environments for heavy backend workloads. - [Bounties & Referral Engine](https://unchainedcode.dev/help/bounties-viral-referral-engine): Community growth and reward distribution. ## Alternative Comparisons - [Lovable Alternative](https://unchainedcode.dev/alternatives/lovable): Free alternative to Lovable with open-weight models and zero credit card. - [Bolt.new Alternative](https://unchainedcode.dev/alternatives/bolt-new): Free full-stack web app builder with in-browser terminal execution. - [v0 Alternative](https://unchainedcode.dev/alternatives/v0): Free React UI and full-stack generator without token caps. - [Cursor Alternative](https://unchainedcode.dev/alternatives/cursor): Free AI coding IDE with native multi-file editing capabilities. - [Claude Code Alternative](https://unchainedcode.dev/alternatives/claude-code): Use Claude Code agent without paying Anthropic per-token rates. - [Devin Alternative](https://unchainedcode.dev/alternatives/devin): Free autonomous software engineering agent. - [Replit Agent Alternative](https://unchainedcode.dev/alternatives/replit): Free cloud IDE and AI agent for web applications. - [GitHub Copilot Alternative](https://unchainedcode.dev/alternatives/github-copilot): Free AI pair programming assistant. - [Windsurf Alternative](https://unchainedcode.dev/alternatives/windsurf): Free Cascade-style IDE agent for full-codebase workflows. - [OpenAI Codex Alternative](https://unchainedcode.dev/alternatives/codex): Open-source model alternatives for code generation. ## Optional & Legal - [Web App Builder](https://unchainedcode.dev/chat): Interactive browser IDE and chat interface. - [Pricing & Fast-Lane](https://unchainedcode.dev/pricing): Free tier details and Fast-Lane subscription features. - [Terms of Service](https://unchainedcode.dev/terms): Legal terms and service conditions. - [Privacy Policy](https://unchainedcode.dev/privacy): Privacy guidelines and data handling policies. - [Contact Support](https://unchainedcode.dev/contact): Developer support and business inquiries. - [GitHub Repository](https://github.com/unchained-code/unchained-code): Open-source repository and issue tracker. - [npm Package](https://www.npmjs.com/package/unchained-code): Official CLI package for terminal proxy.