AER-1 has moved to zambo.dev/aer-1/.
Zambo is the verifiable work layer for AI.
an AI agent receipt is a recorded input, action, and result that another person or system can inspect.
AER-1 (AI Agent Execution Receipt) is an open draft spec for verifiable receipts of AI agent tool calls, published in the IETF Datatracker as draft-zambo-aer1-26.
Zambo gives AI work a receipt you can check. For people: add Zambo to your AI app and ask for a job. These technical links are for developers and AI agents.
One hosted MCP at https://zambo.dev/mcp.
Check the proof for recorded tool calls (verify a receipt).
Agents: 24-hour Day Pass, $0.99 USDC on Base via x402, not per call. People: Zambo Pass $29 for 30 days or $290 for 365 days, one payment. No subscription. No automatic renewal.