thebird

Web OS — browser-native terminal, agentic chat, and file system powered by WebContainer and IndexedDB. Anthropic-format message routing is handled by acptoapi.

Live Demo

anentrypoint.github.io/thebird

• Chat tab — Agentic chat via acptoapi running in-browser (docs/vendor/thebird-browser.js). Tools: read_file, write_file, list_files (IDB-backed), run_command, read_terminal, send_to_terminal. No proxy server required. API key stored in localStorage.
• Terminal tab — Browser-native POSIX shell (xstate v5 state machine, V8 eval) backed by IndexedDB filesystem. Built-in: ls, cat, cd, pwd, mkdir, rm, cp, mv, echo, env, export, node, npm install. Node REPL with persistent scope, require() from IDB node_modules, http.createServer polyfill.
• Preview tab — iframe served by a service worker reading files from IDB at /preview/*. Hot-reloads 5s after any file write.

All JS and CSS dependencies are vendored locally in docs/vendor/ — no CDN required at runtime.

Architecture

thebird (web OS shell)
  └── acptoapi (npm)        ← Anthropic format → Gemini / OpenAI-compat bridge
        └── @google/genai   ← Gemini native streaming

thebird is the web OS. acptoapi owns all Anthropic↔provider translation, streaming, routing, transformers, and TypeScript types. server.js exposes a local Anthropic-compatible proxy backed by acptoapi.

Local Dev

npm install
node serve.js      # serves docs/ at http://localhost:8080
node server.js     # Anthropic-compat proxy at http://localhost:3456 (needs GEMINI_API_KEY)

acptoapi

For the Anthropic-to-provider bridge (streaming, routing, tool calls, vision, retry logic, TypeScript types), see acptoapi.

npm install acptoapi

License

MIT