three.ws Ships an Open-Source Stack That Gives AI Agents a Body

three.ws published the full architecture of its open-source stack for AI agents: a 3D body, a brain, a wallet, and a job, in one product.

The headline piece is Forge (three.ws/forge) — text or selfies in, rigged, animatable GLB out. No account, no API key, no payment. It runs a registry of generation engines with live health checks and free-first routing: requests go down the cheapest healthy lane (TRELLIS on the free lane, Hunyuan3D 2.1 for the high tier) and fall through when one is down. Photo-to-avatar uses a pre-rigged template with 52 ARKit blendshapes and gates changes on an identity-shape error metric. The rigger is Make-It-Animatable based, with no allowlist — about twenty bone-naming families canonicalize onto one 52-bone set.

The agent side: a multi-model brain router with deterministic failover (native provider → OpenRouter → Groq → free tier → NIM), typed memory with salience and recency ranking, and an emotion layer that blends six continuous emotions into morph targets. Payments ride x402, the HTTP 402 standard, backed by on-chain identity — agents transact without a human holding the keys. Distribution is a web component, MCP servers, and an Android app.

Builders care because this is the first coherent open play at the full agent stack — most projects do one of the four pieces. It's testable free at the forge today.