Home › Directory › Agent Payment Protocols › Universal Commerce Protocol (UCP)
Universal Commerce Protocol (UCP)
Open standard for agent-driven commerce discovery and checkout.
Visit Universal Commerce Protocol (UCP)Docs
| Category | Agent Payment Protocols |
|---|---|
| Authentication | No auth |
| Pricing | Free |
| Website | https://ucp.dev/ |
| Docs | https://ucp.dev/ |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/universal-commerce-protocol-ucp.json |
Information is summarised in our own words and may be out of date; check the vendor's site for current terms and prices. Not affiliated with Universal Commerce Protocol (UCP). Suggest a correction.
More in Agent Payment Protocols
x402
Open protocol that revives HTTP 402 so an API can charge small per-request payments from agents.
Agent Payments Protocol (AP2)
Google's open protocol for agent-led payments.
Agentic Commerce Protocol
OpenAI and Stripe's protocol for agent checkout.
Visa Intelligent Commerce
Visa's framework for AI agents to transact using tokenized credentials.