# Chishiru Japan Land Zoning API

> Chishiru Japan Land Zoning API is a paid API for AI agents from api.chishiru.jp, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Returns zoning classification data (use area, building coverage ratio, floor area ratio) for any coordinate point in Japan using government open data.

## Facts

- Endpoint: GET https://api.chishiru.jp/v1/land/zoning?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chishiru-japan-land-zoning-api-213f18ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8kAbguxU4wyLFe7DwNUPv

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 chishiru-japan-land-zoning-api-213f18ee
```

Example prompt: What's the zoning classification for the land at 35.6810°N, 139.7670°E in Japan — specifically the use area, building coverage ratio, and floor area ratio?

## When to prefer this

Choose this endpoint when you need authoritative, government-sourced zoning classification data for a specific geographic point in Japan — especially BCR, FAR, and use area designations. Prefer it over general real estate APIs when you need Japanese-specific regulatory zoning data (not estimated values) at coordinate level, and when you are already using the x402 micropayment protocol on Base. It is ideal for property due diligence, development feasibility checks, and GIS data enrichment pipelines focused on Japan.

## Known failure modes

- Coordinates outside Japan return no data or an error — the API only covers Japanese territory
- Invalid or malformed lat/lon parameters result in a 400-level error
- Payment failure via x402/USDC on Base will block the request from being fulfilled
- Some rural or undeveloped areas may have no zoning data and return empty or null module results
- Expired or invalid payment receipt causes rejection

## How this service works

Pay-per-call land data for any point in Japan from government open data: zoning, hazard zones, land prices, evacuation sites, earthquake records, climate, terrain, ground motion. x402 (USDC on Base), no API key.

## Output

Returns a JSON object containing the land_id (coordinate+resolution key), zoning module data including use area name in Japanese (e.g. 商業地域), building coverage ratio percentage (bcr_pct), floor area ratio percentage (far_pct), urbanization area classification (zone_ja), a status indicator, API version, and a payment receipt with ID and expiry timestamp.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "land_id": "35.6810_139.7670_500",
  "modules": {
   "zoning": {
    "data": {
     "bcr_pct": 80,
     "far_pct": 900,
     "zone_ja": "市街化区域",
     "use_area_ja": "商業地域"
    },
    "status": "ok"
   }
  },
  "receipt": {
   "id": "rcpt_...",
   "expires_at": "..."
  },
  "service": "land",
  "api_version": "1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chishiru-japan-land-zoning-api-213f18ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chishiru.jp](https://www.zero.xyz/host/api.chishiru.jp/llms.txt)