Outlier

Outlier UCP Agent Commerce (MCP)

Shopify-native Universal Commerce Protocol (UCP) shopping surface for the Outlier storefront. Agents discover capabilities at /.well-known/ucp and transact via the hosted MCP endpoint (search_catalog, create_cart, create_checkout, update_checkout, complete_checkout). Checkout requires contemporaneous buyer approval. Read-only browsing is available without auth via Shopify product/collection JSON endpoints. Customer authentication uses Shopify Customer Account OpenID Connect.

GitHub

Documentation

📖
Authentication
https://raw.githubusercontent.com/api-evangelist/outlier/refs/heads/main/authentication/outlier-authentication.yml

Other Resources

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MCPServer
https://raw.githubusercontent.com/api-evangelist/outlier/refs/heads/main/mcp/outlier-mcp.yml
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OAuthScopes
https://raw.githubusercontent.com/api-evangelist/outlier/refs/heads/main/scopes/outlier-scopes.yml
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/outlier/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
name: Outlier UCP Agent Commerce (MCP)
description: Shopify-native Universal Commerce Protocol (UCP) shopping surface for the Outlier storefront.
  Agents discover capabilities at /.well-known/ucp and transact via the hosted MCP endpoint (search_catalog,
  create_cart, create_checkout, update_checkout, complete_checkout). Checkout requires contemporaneous
  buyer approval. Read-only browsing is available without auth via Shopify product/collection JSON endpoints.
  Customer authentication uses Shopify Customer Account OpenID Connect.
humanURL: https://www.outlier.org/agents.md
baseURL: https://www.outlier.org/api/ucp/mcp
properties:
- type: MCPServer
  url: mcp/outlier-mcp.yml
- type: Authentication
  url: authentication/outlier-authentication.yml
- type: OAuthScopes
  url: scopes/outlier-scopes.yml