Algorand releases AC2, an open standard that gives AI agent approvals a cryptographic signature
Covered by 4 sources
The Algorand Foundation has released AC2, an open-standard protocol for agentic commerce that uses hardware-bound passkey approvals and cryptographic signatures to provide a verifiable audit trail for every transaction executed by an AI agent. AC2 replaces session-level token confirmations, assigning a dedicated authorization to each agent instead of sharing a full private key. A companion wallet app is available for iOS and Android.
The protocol follows a three-step flow: a request from the agent, a single-flow payment, and on-chain settlement of the delivery proof. It is designed to secure code deployments, client communications, API access, and payments including x402 pay-per-request transactions. AC2 is blockchain-agnostic, meaning the authorization layer works across chains.
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