# OpenWeb Ninja — Redfin Search by Polygon

> OpenWeb Ninja — Redfin Search by 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).

Search Redfin real estate listings within a geographic polygon boundary, returning property data for homes in that area.

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-real-estate-data/redfin/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-by-polygon-63b9a410
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wClovyyCStTMkedAQMtTT

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-by-polygon-63b9a410
```

Example prompt: Can you find all the Redfin home listings within the boundaries of the Noe Valley neighborhood in San Francisco — I need the polygon search so I can see only homes strictly inside that district?

## When to prefer this

Choose this endpoint when you need real estate listings constrained to a precise geographic polygon rather than a city name, zip code, or radius — ideal for neighborhood-exact searches, school district boundaries, or custom investment zones. Prefer over standard city/zip searches when boundary precision matters.

## Known failure modes

- Invalid or malformed polygon coordinates returning an error
- Polygon area too large causing timeout or empty results
- No listings found within the specified polygon boundary
- Missing required polygon or search parameters returning a 400 error
- x402 payment failure causing a 402 response before data is returned

## 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 response containing Redfin property listings that fall within the specified polygon area, including property details such as addresses, listing prices, home characteristics, and other real estate data available through Redfin's platform.

## 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-by-polygon-63b9a410/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)