BigCommerce

UCP-PL-000002

BigCommerce storefronts exposing Universal Commerce Protocol endpoints.

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Merchants

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BigCommerce Ecosystem

Plugins, tools, and extensions that work with BigCommerce in the UCP ecosystem.

UCPChecker

Developer Tools

UCP Checker crawls .well-known/ucp manifests to verify whether merchants are agent-ready for agentic commerce. It provides real-time verification with public status pages, embeddable badges, a browser extension, and a full MCP server with 10 tools including cross-store product search, cart building, and checkout. AI agents can discover verified stores, browse catalogs, compare products, and complete purchases across any UCP-enabled merchant.

UCP Playground

Developer Tools

Open testing and benchmarking environment for UCP-enabled AI agent commerce. Benchmark 11 AI models shopping real stores via MCP, REST, and ECP transports. Compare Claude, GPT, Gemini, Grok, DeepSeek, and Llama checkout rates, run multi-turn evaluations, share session replays, audit store UCP compliance, and debug integrations with full protocol visibility.

Agent Compatibility

See which AI shopping agents perform best across BigCommerce stores.

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BigCommerce Merchants

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BigCommerce merchants will appear here as they are discovered and verified.

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Other Platforms

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Shopify

Hosted storefronts on Shopify with UCP manifests.

47 merchants

CatyAI

CatyAI is the Zero-Trust commercial middleware for the Agentic Web, designed to eliminate AI data hallucinations and resolve commercial liability at the architectural level. Acting as a secure pipeline between fragmented SME e-commerce databases and global LLMs (like Google Gemini), CatyAI translates raw storefront inventory into mathematically guaranteed Trust State Objects (TSO). Core Platform Capabilities within the UCP Ecosystem: • Native UCP Compliance: Full implementation of Google's Universal Commerce Protocol, currently running a Grade A discovery manifest (/.well-known/ucp) for seamless capability negotiation. • Cryptographic Certainty (AKL): All commercial data (pricing, stock, specifications) is cryptographically signed at the source using Ed25519 keys. The AI model reads only verified truth, completely bypassing probabilistic scraping failures. • Agentic Execution (AP2): Native support for the Agent Payments Protocol (AP2), facilitating secure CartMandate generation, stock reservation, and zero-click Google Pay checkouts directly within conversational interfaces. • Bulk Scale Infrastructure: Built on an event-driven AWS architecture optimized for mass merchant onboarding, providing immediate UCP-readiness to thousands of catalogs simultaneously. By bridging the gap between legacy Web 2.0 storefronts and Agentic execution, CatyAI ensures that AI assistants read, negotiate, and transact strictly upon verified, liability-free commercial truth.

0 merchants

Feedonomics

Data feed optimization platform supporting UCP merchant discovery across commerce channels.

0 merchants