retailerapi documentation

Cross-retailer product data via REST, MCP, and Custom GPT. Walmart 50M+ products today, with Amazon, eBay, Lowe's, Target, Best Buy, Home Depot enriched on demand.

Three surfaces, one data layer

REST API at api.retailerapi.com/v1 — JSON, Bearer-auth, token-billed.
MCP server at npm i @retailerapi/mcp — drops into Claude Desktop, Claude Code, Cursor.
Custom GPT in the GPT Store — natural-language access for ChatGPT users.

5-minute quickstart

Sign up free (1,000 tokens, no expiration, no card).
Create an API key in the dashboard.
Run your first lookup:

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

Where to next

Quickstart — 5-minute guide
Authentication — Bearer tokens, key rotation
Endpoint reference — every supported endpoint
MCP setup — wire the MCP server into Claude/Cursor
Code examples — cURL, Node, Python

Status + support

Status page: status.retailerapi.com
Email: hello@retailerapi.com
Issues: GitHub (MCP server)