# AgentFeeds Japan/OFAC Sanctions Heartbeat

> AgentFeeds Japan/OFAC Sanctions Heartbeat is a paid API for AI agents from api.agentfeeds.jp, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns lightweight metadata (list date, address count, fetched_at) for Japan MOF and OFAC sanctions lists — no addresses — for cheap change-detection polling.

## Facts

- Endpoint: GET https://api.agentfeeds.jp/v1/reg/sanctions/heartbeat
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentfeeds-japan-ofac-sanctions-heartbeat-4b1f1361
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nxY0VbECrIyM94GvUD1id

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 agentfeeds-japan-ofac-sanctions-heartbeat-4b1f1361
```

Example prompt: Check whether the Japan MOF or OFAC sanctions lists have been updated since yesterday — just give me the list dates, address counts, and when they were last fetched, without pulling the actual addresses.

## When to prefer this

Use this endpoint when you only need to know whether sanctions lists have changed (change-detection loop), not when you need to screen an actual address. At $0.001/call it is the cheapest way to poll for updates before deciding whether to trigger a more expensive full-address fetch or screening call.

## Known failure modes

- Upstream MOF or OFAC source temporarily unavailable — may return stale fetched_at or 503
- Rate limiting if polled too aggressively
- Payment failure via x402 protocol returns 402 status

## How this service works

Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.

## Output

Returns a lightweight heartbeat object containing: list date, total address count, and fetched_at timestamp for both the Japan MOF asset-freeze list and the OFAC SDN digital currency address list. No actual sanctioned addresses are included.

## 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": {}
    }
   },
   "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/agentfeeds-japan-ofac-sanctions-heartbeat-4b1f1361/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentfeeds.jp](https://www.zero.xyz/host/api.agentfeeds.jp/llms.txt)