# Kubiaka Now Japan – Changes Feed

> Kubiaka Now Japan – Changes Feed is a paid API for AI agents from kubiaka-now.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Returns only the items that changed since a given date: new damage reports, municipality classification changes, subsidy/incentive updates, new contact windows, and deadlines within 30 days — for the Kubiaka (Aromia bungii) invasive pest in Japan.

## Facts

- Endpoint: GET https://kubiaka-now.com/x402/v1/changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kubiaka-now-japan-changes-feed-6410d4d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0NvvhFkrnvTWMGbWrJWyw

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 kubiaka-now-japan-changes-feed-6410d4d5
```

Example prompt: Can you pull the Kubiaka Now changes feed for everything that's changed since 2024-06-01 — new damage reports, classification changes, any new subsidies or contact windows, and deadlines coming up soon?

## When to prefer this

Use this endpoint when you want only the delta — what changed since a specific date — rather than a full profile of a single municipality. It is the right choice for monitoring workflows, weekly briefings, alert systems, or any scenario where you want to avoid re-processing unchanged data. For a comprehensive profile of one specific municipality including all current details, prefer the municipality card sibling endpoint instead.

## Known failure modes

- Invalid date format for 'since' parameter — must be YYYY-MM-DD
- No changes in the requested period — returns empty result set
- Future date passed as 'since' — may return empty or error
- Payment failure via x402 — request blocked if USDC payment is not fulfilled
- Network timeout if upstream data source is unavailable

## How this service works

クビアカのいま 変化の便り: since=YYYY-MM-DD から今日までに変わったものだけ（新たな被害・区分の変化・補助と奨励金の追加と状態の変化・窓口の追加・締切が30日以内のもの）

## Output

A filtered JSON response listing only the entities that changed between the specified 'since' date and today: new damage locations, municipality classification changes, newly added or status-changed subsidies and incentives, new contact/reporting windows, and any deadlines falling within 30 days. If 'since' is omitted, defaults to 7 days ago.

## 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": {
      "since": {
       "type": "string",
       "description": "YYYY-MM-DD。この日から今日までの変化。省くと7日前"
      }
     }
    }
   },
   "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/kubiaka-now-japan-changes-feed-6410d4d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kubiaka-now.com](https://www.zero.xyz/host/kubiaka-now.com/llms.txt)