# OpenWeb Ninja — Redfin Search Polygon

> OpenWeb Ninja — Redfin Search Polygon is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns real-time Redfin property listing data for homes within a specified geographic polygon area

## Facts

- Endpoint: GET https://x402.openwebninja.com/real-time-redfin-data/search-polygon
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openweb-ninja-redfin-search-polygon-013ffd02
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J2YWlcM70NpRjk4COtT4j

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 openweb-ninja-redfin-search-polygon-013ffd02
```

Example prompt: Can you pull up all the Redfin listings inside the Noe Valley neighborhood in San Francisco — I want to see what homes are currently for sale within that boundary?

## When to prefer this

Choose this endpoint when you need to search for real estate listings within a specific custom geographic boundary (polygon) rather than a city name or zip code, and you want live Redfin data without needing a Redfin account or API key. It is especially useful for map-driven property searches, neighborhood-scoped queries, or when integrating real estate data into an AI agent workflow at low per-call cost ($0.003 USDC) without subscription overhead.

## Known failure modes

- Invalid or malformed polygon coordinates return an error or empty result
- Polygon covers an area with no active listings returning an empty array
- Payment failure via x402 protocol results in 402 response before data is returned
- Overly large polygon area may time out or return truncated results
- Redfin data unavailability or upstream outage causes failed response

## 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 a JSON payload of real-time Redfin property listings found within the specified polygon boundary, including listing prices, property details, addresses, and other available listing metadata sourced directly from Redfin's data.

## 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/openweb-ninja-redfin-search-polygon-013ffd02/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)