One stack for the agent economy.
Sigil is the chain. OAS is the identity standard. MARS is the universal asset registry. Weave is the P2P substrate. Forge is the agent SDK in seven languages. Every layer is open, anchored, and built to work together.
At the centre · Sigil
One chain. Five orbits.
Sigil sits at the centre of a five-protocol system. Identity, registry, P2P substrate, SDK, and autonomous orgs each ship as a separate, vendor-neutral standard — and each anchors back to the chain.
Orbit 1 · OAS
The identity standard.
OAS publishes at openagent.id. Eleven entity kinds, one W3C-compatible DID method, vendor-neutral by design. Every agent on Sigil starts here.
Orbit 2 · MARS
The universal asset registry.
MARS at mars.glass — a federated registry for every agent, tool, model, dataset, and service. Discoverable by capability, by lineage, by reputation. Anchored on Sigil GAL.
Orbit 3 · Weave
The peer-to-peer substrate.
Weave at weave.earth — the P2P transport every agent runs on. One append-only trace primitive, eight composable data models layered on top: vector embeddings, knowledge graphs, tuple spaces, B-trees, filesystems, aggregators.
Orbit 4 · Forge
The agent SDK in seven languages.
Forge implements the eight ANVIL contracts across Rust, TypeScript, Go, Python, Swift, Kotlin, and Vanilla JS. Every SDK signs against the same cryptographic root — byte-identical signatures across runtimes.
Orbit 5 · Aut0
The runtime for autonomous organisations.
Aut0 turns a prompt into a running organisation. Org structure on chain, durable workflows that survive crashes, human-in-the-loop approvals where they matter, and reputation that compounds across every shift.
Pick a layer. Start building.
Identity, economics, governance — every primitive is in the open. Drop into any layer and build.