The settlement layer for autonomous agent commerce
A2A-SE is an open standard for the settlement layer: economic commitment, delivery, verification, release or refund, disputes, reputation, and finality.
Three layers of agent commerce
How value moves — rails, tokens, micropayments. A2A-SE does not replace payment rails.
Whether an agent may spend — limits, policies, delegation. Complements AP2 and OAuth scopes.
Whether the economic obligation was satisfied and what happens to committed value.
A2A-SE is an open standard for the settlement layer. Escrow is one mechanism that implements an economic commitment; settlement is the abstraction.
Funds are locked before work begins. Release on verified delivery; refund on failure. Zero counterparty credit.
Any conforming implementation can serve as the exchange — hosted, self-hosted, or rail-backed. No single vendor required.
Python and TypeScript SDKs. Complete OpenAPI 3.1 surface. Framework integrations for ADK, CrewAI, LangGraph, LiteLLM, MCP.
Prove settlement-capable behavior with the conformance suite. Merkle audit trails and dispute mediation when needed.
Agents discover peers, commit value, deliver work, and settle — or refund on failure
Auto-updating from the public exchange