# Zinc API > One API to purchase products from major online retailers (Amazon, Walmart, > and more): real-time product data, order placement, tracking, and returns. > Agents can self-serve a sandbox API key with no account and place a test > order in under two minutes. ## Start here - [Agent quickstart](https://api.zinc.com/sandbox/quickstart): zero-to-delivered sandbox order, no signup - POST https://api.zinc.com/sandbox/keys: mint an instant sandbox API key (no auth required) ## Reference - [OpenAPI specification](https://api.zinc.com/openapi.json): full API reference - [Dashboard](https://app.zinc.com): account signup, live API keys, wallet funding