# Bartesian Commerce (UCP Shopping)

**Canonical:** https://apis.io/apis/bartesian/commerce/  
**Provider:** Bartesian — https://apis.io/providers/bartesian/  
**Base URL:** https://bartesian.com/api/ucp/mcp  
**Documentation:** https://bartesian.com/agents.md

Bartesian Commerce (UCP Shopping) is published by [Bartesian](https://apis.io/providers/bartesian/) on the [APIs.io](https://apis.io/) network. Tagged areas include Commerce, Agentic Commerce, MCP, Universal Commerce Protocol, and Checkout. The published artifact set on APIs.io includes authentication docs.

The agent-facing commerce surface of the Bartesian Shopify storefront. The store publishes a Universal Commerce Protocol merchant profile at https://bartesian.com/.well-known/ucp declaring UCP versions 2026-04-08 and 2026-01-23, the dev.ucp.shopping service over both an MCP transport at https://bartesian.com/api/ucp/mcp and an embedded transport, and eight capabilities covering cart, checkout, fulfillment, discount, order and catalog search/lookup. Unlike most UCP storefronts, this endpoint answers an anonymous initialize and tools/list with HTTP 200, returning all 13 tools together with their full JSON Schema draft 2020-12 input schemas - the real contract, captured verbatim. Tool invocation is gated: every tool requires a meta.ucp-agent.profile URI, and an anonymous tools/call returns HTTP 422 with JSON-RPC error -32001.

## Machine-readable artifacts (13)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/mcp/bartesian-mcp.yml
- **LLMsTxt** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/llms/bartesian-llms.txt
- **WellKnown** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/well-known/bartesian-well-known.yml
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/authentication/bartesian-authentication.yml
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/scopes/bartesian-scopes.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/conventions/bartesian-conventions.yml
- **Idempotency** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/conventions/bartesian-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/errors/bartesian-problem-types.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/data-model/bartesian-data-model.yml
- **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/lifecycle/bartesian-lifecycle.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/conformance/bartesian-conformance.yml
- **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/skills/_index.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/bartesian/refs/heads/main/apis.yml

## Tags

Commerce, Agentic Commerce, MCP, Universal Commerce Protocol, Checkout, Cart, Catalog

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/bartesian/commerce/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/bartesian/.