Turn a product name into a marketing-ready description and selling points, and turn a shopping query into ranked products with buy links and prices. The e-commerce primitives a shopping or merchandising agent needs.

Pricing: pay-per-call in USDC on Base. No subscriptions, no API keys. See per-tool prices below.

Install — Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "agentutility-retail": {
      "command": "npx",
      "args": ["-y", "@agentutility/mcp-retail"],
      "env": { "X402_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY_HEX" }
    }
  }
}

Restart Claude Desktop. 5 tools appear in the tool palette.

Install — Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "agentutility-retail": {
      "command": "npx",
      "args": ["-y", "@agentutility/mcp-retail"],
      "env": { "X402_PRIVATE_KEY": "0x..." }
    }
  }
}

Funding

Send any amount of USDC on Base mainnet to the address derived from your X402_PRIVATE_KEY. The MCP server uses it to pay for tool calls automatically.

USDC on Base contract: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Tools (5)

Tool	Description
`find-products`	(0.02 USDC/call) Find products API (alias of product-search). Returns ranked product results with buy links, retailer, snippet, and detected price for a shopping query. Backed by Decodo Google search scoped to buy intent.
`product-describe`	(0.01 USDC/call) Writes conversion-focused product descriptions and listing copy from a product name and optional category, audience, and attributes. Returns a description, bullet selling points, key features, a positioning angle, and suggested listing titles. AI-written copy generated from the facts you supply; it does not invent specs or claims. Use it as a product description generator, e-commerce copywriter, or selling points API.
`product-description`	(0.01 USDC/call) Product description API (alias of product-describe). Turns a product name + attributes into a marketing-ready description, selling points, key features, and listing titles. AI-written copy from supplied facts only.
`product-search`	(0.02 USDC/call) Searches shopping results for a product query (and optional retailer), returning ranked results with product title, buy link, retailer domain, snippet, and any detected price. Backed by Decodo Google search scoped to buy intent. For general web search use search/web-search. Use it as a product search or shopping search API to find products and buy links for agents.
`shop-search`	(0.02 USDC/call) Shopping search API (alias of product-search). Find products and buy links for a query with title, buy link, retailer, snippet, and detected price. Backed by Decodo Google search scoped to buy intent.

How it works

Agent calls a tool (e.g. find-products).
MCP server POSTs to https://x402.agentutility.ai/find-products.
The endpoint responds HTTP 402 with payment instructions.
The MCP server signs an EIP-3009 USDC transfer authorization with X402_PRIVATE_KEY and retries.
CDP facilitator settles on Base.
The endpoint returns the actual response.

The agent never sees the payment flow — it just gets the result.