Black Buffalo

Black Buffalo UCP Agentic Commerce API

Black Buffalo implements the Universal Commerce Protocol for agent-driven commerce. The merchant profile at /.well-known/ucp declares UCP 2026-04-08 and 2026-01-23, the dev.ucp.shopping MCP service endpoint, the cart / checkout / fulfillment / discount / order / catalog capabilities and two payment handlers (Google Pay and Shopify card). Unusually, this endpoint's tools/list answers ANONYMOUSLY — thirteen tools with full JSON Schema input contracts, spanning the whole cart-to-completed-order lifecycle. Checkout completion still requires contemporaneous buyer approval.

GitHub

Other Resources

🔗
MCPServer
https://raw.githubusercontent.com/api-evangelist/black-buffalo/refs/heads/main/mcp/black-buffalo-mcp.yml
🔗
AgenticAccess
https://raw.githubusercontent.com/api-evangelist/black-buffalo/refs/heads/main/agentic-access/black-buffalo-agentic-access.yml

API entry from apis.yml

apis.yml Raw ↑ 
aid: black-buffalo:ucp-commerce
name: Black Buffalo UCP Agentic Commerce API
description: Black Buffalo implements the Universal Commerce Protocol for agent-driven commerce. The merchant
  profile at /.well-known/ucp declares UCP 2026-04-08 and 2026-01-23, the dev.ucp.shopping MCP service
  endpoint, the cart / checkout / fulfillment / discount / order / catalog capabilities and two payment
  handlers (Google Pay and Shopify card). Unusually, this endpoint's tools/list answers ANONYMOUSLY —
  thirteen tools with full JSON Schema input contracts, spanning the whole cart-to-completed-order lifecycle.
  Checkout completion still requires contemporaneous buyer approval.
humanURL: https://ucp.dev/2026-04-08/specification/overview/
baseURL: https://blackbuffalo.com/api/ucp/mcp
tags:
- UCP
- Agentic Commerce
- MCP
- Checkout
properties:
- type: MCPServer
  url: mcp/black-buffalo-mcp.yml
- type: AgenticAccess
  url: agentic-access/black-buffalo-agentic-access.yml