This is the backend Kychee's open products run on. We needed a layer an agent can drive end to end, with room for whatever each app turns out to need, and nothing off the shelf had all of it, so we built it and opened it the same way we open the apps: this repo holds the agent surfaces (MIT), run402-core holds the full backend (Apache-2.0), and kysigned is the first product running on it.
One call to run402 gives an agent a full Postgres database, REST API, user auth, content-addressed file storage, static site hosting, serverless functions, and image generation, paid with x402 USDC on Base (or Stripe credits). The prototype tier is free on testnet.
Run402 is agent-first because agents are first-class participants, not because people disappear. A person or agent acts through its own Run402 principal and authenticator, and its actions remain attributable. Identity answers who acted; memberships, roles, grants, delegates, freshness, and spend policy determine what that principal may do.
An autonomous agent may remain the legitimate owner of the org-of-one it creates. People may join through explicit co-ownership. Agents entering somebody else's organization receive bounded authority instead of borrowing a human account. Different keys. Equal standing. Explicit authority.
This monorepo ships every surface an agent can pick up: