# Chishiru Japan Land Price API

> Chishiru Japan Land Price 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 official land price data for a given geographic coordinate in Japan, sourced from government open data.

## Facts

- Endpoint: GET https://api.chishiru.jp/v1/land/price?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-price-api-b99ff083
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xlquSHsnUfEf4K1XKuU4H

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-price-api-b99ff083
```

Example prompt: What's the official government land price and zoning info at 35.6810° N, 139.7670° E in Tokyo? I need the building coverage ratio and floor area ratio too.

## When to prefer this

Choose this endpoint when you need official Japanese government land price and zoning data for a specific geographic point, especially for real estate due diligence, property valuation, or geospatial enrichment in Japan. It is uniquely suited for agents needing authoritative per-coordinate land assessments without requiring an API key, using pay-per-call USDC micropayments via x402.

## Known failure modes

- Coordinate outside Japan — no land record exists for the given lat/lng
- Coordinates in unpopulated or rural area with no government land price record
- Invalid lat/lng format causing request rejection
- Payment failure via x402/USDC resulting in 402 response before data is returned
- Rate limiting or service unavailability returning 5xx error

## 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 land price data for the queried coordinate, including a land_id (encoded lat/lng/resolution), zoning module data with building coverage ratio (bcr_pct), floor area ratio (far_pct), Japanese zone name (zone_ja), use area classification (use_area_ja), a receipt object with receipt ID and expiry, and API version metadata.

## 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-price-api-b99ff083/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)