generated: '2026-08-13' method: probed status: published source: https://www.hudsonjeans.com/api/ucp/mcp notes: >- Centric Brands publishes no corporate developer program, but eight of its owned-brand direct-to-consumer storefronts run a live Universal Commerce Protocol (UCP) MCP server. tools/list was POSTed anonymously to each host on 2026-08-13 and every one returned HTTP 200 with the same 13 UCP shopping tools and full JSON Schema inputs. Tool schemas are captured verbatim from www.hudsonjeans.com in centric-brands-ucp-mcp-tools.json. PROVENANCE: the server is Shopify platform infrastructure, not software Centric Brands authored — it is generated for every Shopify store on the 2026-04-08 UCP release. It is recorded here because it is genuinely reachable, unauthenticated, and served from hosts Centric Brands legally operates (see ownership below); it is NOT evidence of a Centric-built API program. ownership: >- Each storefront's own privacy policy names a Centric operating entity — Hudson Jeans, Joe's Jeans and Favorite Daughter are "part of CENTRIC WEST LLC"; Buffalo David Bitton and Avirex are "part of CENTRIC DENIM USA LLC"; Hervé Léger and Zac Posen are "part of CENTRIC FASHION LLC" (Zac Posen's Shopify handle is literally zac-posen-centric.myshopify.com). Avirex's terms of service state "Centric Denim USA LLC operates this website www.avirex.com". Avirex, Hudson and Robert Graham are additionally linked as owned brands from https://www.centricbrands.com/owned-brands. server: name: centric-brands-owned-brand-storefronts vendor: Shopify (UCP storefront commerce) transport: http protocol: mcp jsonrpc: '2.0' url: https://www.hudsonjeans.com/api/ucp/mcp discovery: https://www.hudsonjeans.com/.well-known/ucp agent_instructions: https://www.hudsonjeans.com/llms.txt auth: read_only: none transacting: buyer-approved ucp_versions: - '2026-04-08' - '2026-01-23' deployment: mode: remote endpoint: https://www.hudsonjeans.com/api/ucp/mcp auth: none verified: probed probe: live tools: 13 http_status: 200 checked: '2026-08-13' source: anonymous JSON-RPC tools/list against every owned-brand host fleet: - brand: Hudson Jeans entity: Centric West LLC host: https://www.hudsonjeans.com mcp: https://www.hudsonjeans.com/api/ucp/mcp ucp_endpoint: https://hudsonjeans.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/1157103680 tools_list_status: 200 tools: 13 - brand: Joe's Jeans entity: Centric West LLC host: https://www.joesjeans.com mcp: https://www.joesjeans.com/api/ucp/mcp ucp_endpoint: https://joesjeans.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/2912321571 tools_list_status: 200 tools: 13 - brand: Favorite Daughter entity: Centric West LLC host: https://www.favoritedaughter.com mcp: https://www.favoritedaughter.com/api/ucp/mcp ucp_endpoint: https://shopfavoritedaughter-com.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/49159143577 tools_list_status: 200 tools: 13 - brand: Buffalo David Bitton entity: Centric Denim USA LLC host: https://www.buffalojeans.com mcp: https://www.buffalojeans.com/api/ucp/mcp ucp_endpoint: https://buffalo-jeans-us.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/50430541978 tools_list_status: 200 tools: 13 - brand: Avirex entity: Centric Denim USA LLC host: https://www.avirex.com mcp: https://www.avirex.com/api/ucp/mcp ucp_endpoint: https://avirex-com.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/25513853021 tools_list_status: 200 tools: 13 - brand: Hervé Léger entity: Centric Fashion LLC host: https://www.herveleger.com mcp: https://www.herveleger.com/api/ucp/mcp ucp_endpoint: https://herve-leger-us.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/44961398952 tools_list_status: 200 tools: 13 - brand: Zac Posen entity: Centric Fashion LLC host: https://www.zacposen.com mcp: https://www.zacposen.com/api/ucp/mcp ucp_endpoint: https://zac-posen-centric.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/65643970780 tools_list_status: 200 tools: 13 - brand: Robert Graham entity: Robert Graham Retail LLC (owned brand, linked from centricbrands.com/owned-brands) host: https://www.robertgraham.us mcp: https://www.robertgraham.us/api/ucp/mcp ucp_endpoint: https://robertgraham.myshopify.com/api/ucp/mcp oidc_issuer: https://shopify.com/authentication/3091202094 tools_list_status: 200 tools: 13 not_reachable: - brand: SWIMS host: https://www.swims.com mcp: https://www.swims.com/api/ucp/mcp tools_list_status: 403 note: >- The storefront serves /.well-known/ucp with HTTP 200 but the MCP endpoint answered 403 to an anonymous tools/list on 2026-08-13 — edge bot protection, not an absent surface. Not counted as a working agent surface. tools: - name: search_catalog category: catalog description: >- Search the store catalog with natural-language queries and/or structured filters; paginated. Implements dev.ucp.shopping.catalog.search. - name: lookup_catalog category: catalog description: >- Look up specific catalog items by identifier. Implements dev.ucp.shopping.catalog.lookup. - name: get_product category: catalog description: Retrieve a single product, including variants and options. - name: create_cart category: cart description: Create a cart from line items. - name: get_cart category: cart description: Read a cart including line items, totals, and discounts. - name: update_cart category: cart description: Add, remove, or change cart line items and buyer information. - name: cancel_cart category: cart description: Cancel/discard a cart. - name: create_checkout category: checkout description: Create a checkout from a cart or line items. - name: get_checkout category: checkout description: >- Read checkout details including line items, totals, discounts, and taxes. Prices are integers in ISO 4217 minor units paired with a currency code. - name: update_checkout category: checkout description: Set shipping address, shipping method, and buyer details on a checkout. - name: complete_checkout category: checkout description: >- Finalize a purchase. Requires contemporaneous buyer approval of payment — agents must not complete payment without explicit buyer consent. - name: cancel_checkout category: checkout description: Cancel an in-progress checkout. - name: get_order category: order description: Retrieve an order for tracking after checkout completion. capabilities: - dev.ucp.shopping.checkout - dev.ucp.shopping.fulfillment - dev.ucp.shopping.discount - dev.ucp.shopping.cart - dev.ucp.shopping.order - dev.ucp.shopping.catalog.search - dev.ucp.shopping.catalog.lookup - dev.shopify.catalog payment_handlers: - com.google.pay - dev.shopify.card - dev.shopify.shop_pay schemas: tools_list: mcp/centric-brands-ucp-mcp-tools.json merchant_profile: well-known/centric-brands-ucp.json openrpc: https://ucp.dev/2026-04-08/services/shopping/mcp.openrpc.json x-evidence: fetched: '2026-08-13' method: POST tools/list (JSON-RPC 2.0), no credentials hosts_probed: 9 hosts_returning_tools: 8 http_status: 200