Developer Preview

The protocol is open now. The full developer program is opening in stages.

Event schema, causal primitives, and type-system foundations are the public layer. Start there.

Python, JavaScript, and Rust SDKs are planned, but not yet in broad public release. Early access is by cohort.

Preview access only Request Access

The protocol is open source. The substrate runtime is source-available under BSL.

Build Directions

Wrap autonomous execution with bounded delegation, causal events, and recoverable state transitions.

Turn logs into traversable evidence: what happened, why it happened, and who was allowed to do it.

Preserve thread, context, and attribution across tools, sessions, and operators without re-authoring state.

Build interfaces where humans and agents share the same substrate instead of passing screenshots and summaries back and forth.

Read the protocol, inspect the runtime model, and join the preview if you want direct access as the public developer lane opens.