WTAgent

WTAgent is a free, open-source command-line tool that turns the web AI subscriptions you already pay for into real coding agents on your own machine. ChatGPT web works like Codex: WTAgent drives your existing ChatGPT web account to read your project, plan changes, edit files, run shell commands and verify results. Claude web works the same way as a Claude Code-style agent, and DeepSeek, Gemini, Grok, Kimi and GLM web accounts are supported too, so one CLI covers the major AI services you already use. It needs no model API keys, no MCP servers and no tunnels: everything runs locally through the official web apps you are signed into, respecting provider terms and account limits. Ideal users are developers who want agentic coding workflows without extra API billing. Cross-platform on macOS, Linux and Windows WSL2, MIT licensed, install with npm i -g wtagent. Independent open-source project, not affiliated with OpenAI or Anthropic.