Algorand Launches Protocol for AI Agents

The Algorand Foundation has launched AC2, an open protocol designed to let users securely communicate with and control AI agents. The standard is blockchain-agnostic and uses encrypted peer-to-peer connections between a user’s wallet or app and an AI agent.

AC2 allows agents to request approval for actions such as payments, code signing, or API access. Users can review each request in their own wallet and approve it without giving the agent access to their private keys.

The protocol is designed for different types of agent workflows. A coding agent can ask for approval before signing a commit, while a payment agent can send transaction details to a wallet for review. Shopping agents can also use mandates that define what they are allowed to buy and at what price.

AC2 uses DIDComm v2.0 for messaging and passkey authentication through Liquid Auth, based on FIDO2 and WebAuthn. The protocol supports text and voice communication, signing delegation, and does not require a central relay or blockchain.

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