# Read an address monitor and its last results

`GET /api/v1/address/monitors/{monitorId}`

- Authentication: Secret API key as a bearer token
- Billing: Free.
- Group: Address

The monitor plus `results`: for every address from the last run, its status, the conditions that fired, what the registers answered, its score and level, and whether the status changed since the previous run; keyed by the address as it was saved, or null until the first run has finished.

The status is the first condition that fired, in this order: `invalid` (the address no longer stands as written, with the `reason`), `not_in_register` (a register claiming complete coverage no longer carries it), `terminated_postcode`, `mail_drop`, `high_risk`. An address that fired none is `ok`, or `unverifiable` when the answer stands but no register, postcode directory or company register is installed for its country — which is the honest answer, and is counted apart so you can see how much of a list nobody can check. A monitor that belongs to another account answers `404`.

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `monitorId` | path | integer | yes | The monitor's id from the list endpoint. |

## Example request

```bash
curl https://spaw.co/api/v1/address/monitors/9 \
  -H "Authorization: Bearer sk_live_…"
```

## Responses

### 200 — The monitor.

```json
{
    "success": true,
    "data": {
        "monitor": {
            "id": 9,
            "name": "Supplier offices",
            "cadence": "monthly",
            "address_count": 2,
            "country": "GB",
            "deliverability": false,
            "next_run_at": "2026-10-05T08:00:00+00:00",
            "last_run_at": "2026-09-05T08:00:04+00:00",
            "last_summary": {
                "total": 2,
                "ok": 1,
                "invalid": 0,
                "not_in_register": 1,
                "terminated_postcode": 0,
                "mail_drop": 0,
                "high_risk": 0,
                "unverifiable": 0,
                "changed": 1,
                "newly_flagged": 1,
                "credits_used": 2,
                "stopped_reason": null
            },
            "created_at": "2026-08-05T08:00:00+00:00",
            "results": {
                "221B Baker Street, London, NW1 6XE": {
                    "status": "not_in_register",
                    "flags": [
                        "not_in_register"
                    ],
                    "reason": null,
                    "exists": false,
                    "postcode_status": "live",
                    "companies_registered": 0,
                    "is_mail_drop": false,
                    "risk_score": 20,
                    "risk_level": "low",
                    "changed": true
                },
                "10 Downing Street, London, SW1A 2AA": {
                    "status": "ok",
                    "flags": [],
                    "reason": null,
                    "exists": true,
                    "postcode_status": "live",
                    "companies_registered": 0,
                    "is_mail_drop": false,
                    "risk_score": 0,
                    "risk_level": "low",
                    "changed": false
                }
            }
        }
    }
}
```

### 401 — The key is missing, malformed, or revoked.

```json
{
    "success": false,
    "error": {
        "code": "UNAUTHENTICATED",
        "message": "Provide a valid API key as a bearer token.",
        "request_id": "req_01m1kgdm4xngzmbmff68g94w0c"
    }
}
```

### 404 — No such record on this account.

```json
{
    "message": "Not Found"
}
```

### 429 — Over 5 requests per second for the key. Retry after the limit resets.

```json
{
    "success": false,
    "error": {
        "code": "RATE_LIMITED",
        "message": "Too many requests. Retry after the limit resets.",
        "request_id": "req_01m1kgdm4xngzmbmff68g94w0c"
    }
}
```

## Error codes

- `UNAUTHENTICATED` — https://spaw.co/docs/errors/UNAUTHENTICATED
- `RATE_LIMITED` — https://spaw.co/docs/errors/RATE_LIMITED

---

Canonical page: https://spaw.co/docs/api/get-address-monitor · OpenAPI document: https://spaw.co/openapi.json · All endpoints: https://spaw.co/docs/api