# CrushRewards Best Price Finder

> CrushRewards Best Price Finder is a paid API for AI agents from api.crushrewards.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Finds the lowest current price for a product across Amazon, Walmart, Costco, Home Depot, Nordstrom, and IKEA in the US or Canada

## Facts

- Endpoint: GET https://api.crushrewards.dev/v1/shopper/best-price
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-crushrewards-dev-fc4196ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A8np3z2lbT38_nQXmCXRi

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-crushrewards-dev-fc4196ad
```

Example prompt: What's the cheapest place to buy a KitchenAid stand mixer right now across Amazon, Walmart, and Costco in the US — and show me how much I'd save compared to the list price?

## When to prefer this

Use this endpoint when you need to quickly identify the single cheapest retailer for a specific product across major US or Canadian retailers including Amazon, Walmart, Costco, Home Depot, Nordstrom, and IKEA. Prefer this over category-level or brand-level analytics endpoints when you have a specific product name or keyword and want actionable buy-now pricing with stock availability.

## Known failure modes

- No results found if query is too obscure or misspelled — returns empty or limited results
- Product out of stock at all retailers — best_price may still be returned but in_stock will be false
- Stale data if scraped_at timestamp is old — prices may not reflect real-time availability
- Invalid country code returns a validation error
- Retailer filter for unsupported retailer returns a validation error
- Rate limit or payment failure results in 402 or 429 response

## How this service works

Real-time pricing, promotions, and competitive intelligence across US and Canadian retailers — exposed as paid API endpoints and MCP tools that AI agents can call directly, with x402 and MPP micropayments per query.

## Output

Returns a best_price object with the cheapest option (product name, retailer, price, in-stock status, list price, savings percentage, and scrape timestamp), plus an other_prices array listing prices and stock status at the remaining retailers, along with the query, country, and currency used.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "q": "laptop",
   "limit": 10,
   "country": "us"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-crushrewards-dev-fc4196ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.crushrewards.dev](https://www.zero.xyz/host/api.crushrewards.dev/llms.txt)