# FEMA Flood Zone Lookup

> FEMA Flood Zone Lookup is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-12).

Returns FEMA flood zone classification, Special Flood Hazard Area flag, zone subtype, and base flood elevation for a given US address or lat/lon coordinate.

## Facts

- Endpoint: GET https://api.agentstools.dev/hazard/flood?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fema-flood-zone-lookup-a045939d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_huMc5L46qaU9m2mmSw0Aw

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 fema-flood-zone-lookup-a045939d
```

Example prompt: Is 123 Bayshore Drive, Miami FL 33132 in a FEMA Special Flood Hazard Area, and what flood zone code does it fall under?

## When to prefer this

Use this endpoint when you need authoritative FEMA flood zone data (zone codes like AE, VE, X), SFHA status, or base flood elevation for a specific US point — especially for real estate due diligence, flood insurance determination, or mortgage compliance. Prefer this over general hazard APIs when the specific FEMA zone classification or BFE is required rather than a generic flood risk score.

## Known failure modes

- Address outside the United States — service only covers US locations
- Ambiguous or unresolvable address — geocoding fails and no result is returned
- Coordinates out of valid range (lat outside [-90,90] or lon outside [-180,180])
- Location in an unmapped area — FEMA flood map data not available for that point
- Missing required query parameter — neither address nor lat+lon pair provided
- Payment failure or insufficient balance — x402 payment required before data is returned

## How this service works

FEMA flood-zone lookup for a US point: Special Flood Hazard Area flag, FEMA flood zone (such as AE, VE, X), zone subtype, and base flood elevation, for a US address or coordinates.

## Output

Returns whether the location is in a Special Flood Hazard Area (boolean flag), the FEMA flood zone designation (e.g. AE, VE, X), the zone subtype, and the base flood elevation in feet — all derived from official FEMA flood maps for the given US address or lat/lon point.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "lat": {
       "type": "number",
       "description": "Latitude [-90,90] (with lon)"
      },
      "lon": {
       "type": "number",
       "description": "Longitude [-180,180] (with lat)"
      },
      "address": {
       "type": "string",
       "description": "US street address (auto-geocoded)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fema-flood-zone-lookup-a045939d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)