Agentic Commerce Protocol (ACP)
Protocol support for agent-initiated commerce
Overview
Agentic Commerce Protocol (ACP) defines standards for AI agents to conduct commerce autonomously. Originary integrates with ACP to provide verifiable receipts for agent transactions, ensuring trust and auditability in automated commerce workflows.
When agents execute purchase flows, service bookings, or payment transactions via ACP, Originary issues PEAC-Receipts that prove transaction completion and can be verified by merchants, platforms, and auditors.
Getting Started with ACP
ACP standardizes how agents discover products, negotiate terms, and complete purchases. Originary issues a signed receipt for each transaction, recording what was bought, what was paid, and what terms applied.
Start by exposing your product catalog in ACP-compatible format. Agents can then browse offerings, compare prices, and initiate purchase flows programmatically. When an agent completes a purchase, Originary issues a PEAC-Receipt containing cryptographic proof of the transaction, payment details, and fulfillment status.
ACP works with existing payment rails and can be adopted incrementally alongside traditional checkout flows. Each receipt is independently verifiable, so reconciliation does not depend on trust between parties.
Use Cases
Agent Purchasing
AI agents autonomously purchase goods and services with verifiable transaction receipts for reconciliation and compliance.
Service Booking
Agents book appointments, reservations, and services with cryptographic proof of booking completion.
Payment Verification
Merchants verify agent payment receipts before fulfilling orders, reducing fraud and chargebacks.
Implementation
ACP Transaction with PEAC-Receipt
POST /acp/purchase HTTP/1.1
Host: merchant.example.com
Content-Type: application/json
{
"item_id": "prod_123",
"quantity": 1,
"agent_id": "agent-xyz",
"receipt": "eyJhbGc...PEAC-Receipt-signature"
}Merchants can verify the attached PEAC-Receipt to confirm payment authorization before fulfilling the order.
Benefits for Commerce Platforms
- Reduce fraud with cryptographic payment verification
- Enable autonomous agent purchasing at scale
- Complete audit trail for all agent transactions
- Simplified reconciliation and accounting
- Standards-based integration with existing commerce systems