Tech stack: React Ink (CLI UI) TypeScript Modular subagent architecture OpenRouter (free-tier models supported) One thing I realized while building this: You don’t actually need expensive API credits to experiment with AI agents.
There’s a surprisingly strong free stack available: OpenRouter (multiple free-tier models) Antigravity (Claude, GPT variants, Gemini access) OpenCode (GLM-5, MiniMax) Local models via LM Studio / Ollama / ComfyUI
The biggest barrier isn’t cost — it’s clarity of architecture.