UPC API — Programmatic Product Data by Barcode

Get started in 30 seconds

Sign up at retailerapi.com/signup, copy your API key from /app/keys, and call the endpoint. The first 1,000 requests every month are free. Cards are not required at any tier transition until you cross 1,000 lookups.

cURL

curl https://api.retailerapi.com/v1/products/19667262713 \
  -H "Authorization: Bearer rk_live_..."

Node.js (with @retailerapi/sdk)

import { Retailerapi } from '@retailerapi/sdk';

const rapi = new Retailerapi(process.env.RETAILERAPI_KEY);
const product = await rapi.products.get('19667262713', {
  includeCrossRetailer: true,
});
console.log(product.title, product.currentPrice);

Python

import requests, os

r = requests.get(
  "https://api.retailerapi.com/v1/products/19667262713",
  headers={"Authorization": f"Bearer {os.environ['RETAILERAPI_KEY']}"},
  params={"include_cross_retailer": "true"},
)
product = r.json()
print(product["title"], product["current_price"])

MCP (Claude Desktop, Cursor)

{
  "mcpServers": {
    "retailerapi": {
      "command": "npx",
      "args": ["@retailerapi/mcp"],
      "env": { "RETAILERAPI_KEY": "rk_live_..." }
    }
  }
}

Full reference: docs.retailerapi.com. OpenAPI 3.1 schema: api.retailerapi.com/openapi-gpt-actions.json.

Why developers picked us

• Predictable token math. 1 call = 1 token. Cross-retailer enrichment costs 0 extra tokens.
• Built MCP-native. Open-source MCP server, allow-listed by GPTBot, ClaudeBot, PerplexityBot.
• $0 to start. 1,000 calls per month, no card required.
• OpenAPI 3.1. Generate clients in any language. Same schema feeds the Custom GPT and the SDKs.

Frequently asked questions