# Polyform Real Estate Site Risk API

> Polyform Real Estate Site Risk API is a paid API for AI agents from api.polyform.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-10).

Returns flood zone classification and overall environmental risk level for a US real estate location, including FEMA SFHA status and active weather alerts.

## Facts

- Endpoint: GET https://api.polyform.org/v1/realestate/site-risk?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polyform-real-estate-site-risk-api-75605366
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VKCSs6RYjhsQNvDDb0H-s

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 polyform-real-estate-site-risk-api-75605366
```

Example prompt: What's the flood zone and site risk level for a property at Miami, FL — is it in a FEMA Special Flood Hazard Area?

## When to prefer this

Use this endpoint when an AI agent needs a quick, pay-per-call flood zone and site risk verdict for a US real estate location without setting up accounts or API keys. Ideal for property due diligence, real estate listings, mortgage underwriting, or insurance pre-screening workflows where FEMA flood zone status and a summarized risk level are the primary outputs needed.

## Known failure modes

- Location not recognized or ambiguous address returns an error or empty result
- Non-US locations may not be supported or may return incomplete data
- Network or payment failure (402 if micropayment not processed) blocks the response
- Rate limiting or transient upstream data source errors may cause occasional failures

## How this service works

Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.

## Output

Returns a JSON object with: the original query string, a risk level (e.g. HIGH/LOW/MODERATE), flood zone details including SFHA boolean and FEMA zone code (e.g. AE), and a count of active weather alerts at the location.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "flood": {
   "sfha": true,
   "zone": "AE"
  },
  "query": "Miami, FL",
  "riskLevel": "HIGH",
  "activeAlerts": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polyform-real-estate-site-risk-api-75605366/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.polyform.org](https://www.zero.xyz/host/api.polyform.org/llms.txt)