# Walmart Products by Category

> Walmart Products by Category is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Fetches a paginated list of Walmart products within a specific category, with filtering by price, store, location, and sorting options

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-ecommerce-data/walmart/products-by-category
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/walmart-products-by-category-3997d9cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4nL5AGv0nxoCJ_hR9ifW2

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 walmart-products-by-category-3997d9cf
```

Example prompt: Can you show me the top-rated electronics on Walmart.com in category 3944 sorted by top_rated, priced between $50 and $200, for zip code 10001 in the US?

## When to prefer this

Use this endpoint when you need to browse or list Walmart products within a known category ID, especially when you want to apply filters like price range, location (zip/state/store), sorting preference, or domain (US vs Canada). Prefer this over keyword search endpoints when you already know the category and want structured product catalog data with rich metadata including ratings, shipping, and availability.

## Known failure modes

- Missing required category_id returns a 400 validation error
- Invalid or non-existent category_id returns empty product array
- Unsupported domain value (not 'us' or 'ca') returns validation error
- Payment not received causes 402 response blocking the request
- Invalid sort_by value returns schema validation error
- Page number below 1 returns validation error

## How this service works

40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.

## Output

Returns an array of Walmart product objects, each containing title, brand, price, list price, rating, review count, availability status, shipping and pickup flags, seller info, product URL, thumbnail image, badge flags (e.g. best seller), sponsored status, and stock availability — paginated and filterable by store, location, and price range.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/walmart-products-by-category-3997d9cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.openwebninja.com](https://www.zero.xyz/host/x402.openwebninja.com/llms.txt)