runfabricStart building
OPEN SOURCE

An engine you can take with you.

The standalone workflow engine, SDK, CLI, MCP server and workflow web source are prepared under Apache-2.0. The hosted dev service adds a concrete deployment.

Portable process semantics

The engine consumes a versioned JSON graph and produces inspectable run state. It does not depend on a model provider, a Cloudflare-only agent harness or an organization operating system. Self-host it with PostgreSQL, or run an activity worker against the hosted API.

D1 and Queue are the current hosted control-plane bind. The workflow engine remains an independently usable package. Deployment adapters do not change the graph's meaning.

Use the distribution today

The dev package contains compiled JavaScript, TypeScript declarations, CLI and stdio MCP entry points, schemas, examples and the agent skill. Use the documentation quickstart to install it without repository access.

The implementation is developed in the Coralbeat2 repository. Public repository access and npm publication are separate release steps; this page does not claim either has happened.

Apache-2.0

The packaged license permits use, modification and redistribution subject to its license and notice requirements. It does not grant rights to customer data, credentials or third-party services.

Read the packaged license
Read the documentation and get started →