Universal Commerce Protocol (UCP) Validator & Tester
Free UCP validator & readiness checker. Check if your store's .well-known/ucp manifest complies with the Universal Commerce Protocol — including AP2 Agent Payments, Order Capability, Identity Linking, and AI agent readiness.
Universal Commerce Protocol (UCP) Validator & Tester
Frequently Asked Questions
What is the Universal Commerce Protocol (UCP)?
The Universal Commerce Protocol (UCP) is a groundbreaking standard enabling seamless, agent-to-agent negotiations and automated transactions. By hosting a simple `.well-known/ucp` JSON manifest on your domain, you signal to AI agents and external platforms exactly which commerce capabilities your store supports.
This includes endpoints for product discovery, dynamic pricing negotiation, cart management, secure checkout, and supported payment handlers (such as Google Pay or Apple Pay). By standardizing these interactions, UCP eliminates the need for closed proprietary APIs and allows any agentic system to interact with your business autonomously.
Check Your UCP Readiness Score
A malformed `.well-known/ucp` file means AI agents won't understand how to interact with your store, leading to lost sales in the agentic web. Our free UCP Validator checks your UCP readiness across **40+ tests** — discovery, checkout flow, order capability, identity linking, AP2 agent payments, payment handlers, negotiation protocol, and security. Get a grade (A–F) plus actionable fixes for every failure.
Documentation & Examples
To learn more about implementing the Universal Commerce Protocol on your storefront, visit the official UCP Specification and explore the Schema Authoring Guide. These resources provide comprehensive instructions on structuring your capabilities, services, and payment handlers.