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Agent Commerce Gateway is an open-source, self-hosted commerce layer for AI agents.
It sits in front of an existing API and lets agents discover capabilities, pay, and receive results without forcing the merchant to rebuild backend logic for every protocol. ACG keeps one canonical commerce pipeline for validation, pricing, authorization, replay protection, settlement, backend execution, and receipts. Protocols and payment rails are handled through adapters, so MCP, A2A, ACP, UCP, x402, MPP, AP2, and future standards can evolve without changing the merchant’s core business logic. Businesses can expose APIs, datasets, reports, compute, and other digital capabilities as agent-accessible products while keeping control of their backend, infrastructure, pricing, and settlement destination. The gateway is self-hosted, non-custodial, and open source. It does not act as a marketplace, wallet, or merchant of record.
Features
- Deployment — Self-hosted in the merchant’s own environment
- Architecture — Canonical commerce core with protocol adapters
- Payments — Non-custodial settlement to merchant-controlled destinations
- Protocols — MCP, A2A, ACP, UCP, x402, MPP, AP2
- Execution — Validation, pricing, authorization, settlement and backend execution
- Security — Replay protection and controlled delivery after payment verification
- Receipts — Durable transaction receipts and audit history
- Diagnostics — Doctor checks configuration, storage, routes and dependencies
Project Samples
