# French Cadastral Parcel Lookup by Coordinates

> French Cadastral Parcel Lookup by Coordinates is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Returns cadastral parcel metadata (parcel ID, section, number, surface area) for a given GPS coordinate pair in France, sourced from IGN.

## Facts

- Endpoint: POST https://api.x-402.online/v1/fr/cadastre
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/french-cadastral-parcel-lookup-by-coordinates-d35f1071
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lxOephEBZkQKm9FMLEszm

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 french-cadastral-parcel-lookup-by-coordinates-d35f1071 -d '<json body>'
```

Example prompt: What's the cadastral parcel ID, section, number, and surface area for the plot at latitude 48.8566, longitude 2.3522 in France?

## When to prefer this

Use this endpoint when you need to identify the official French cadastral parcel (plot ID, section, number, area) from a GPS coordinate pair — ideal for real estate analysis, property due diligence, or enriching address data with land registry references in France.

## Known failure modes

- Coordinates outside France return no result or an error
- Missing lat or lon parameter returns a 400 bad request
- Coordinates in a maritime zone or non-cadastred area return empty results
- Service unavailable if IGN upstream is down

## Output

Returns a JSON object with the cadastral parcel identifier, section code, parcel number, and surface area in square meters as recorded by the IGN French land registry for the queried coordinates.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/french-cadastral-parcel-lookup-by-coordinates-d35f1071/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x-402.online](https://www.zero.xyz/host/api.x-402.online/llms.txt)