# Holidu Bulk Availability API Documentation

<p><strong>Holidu Bulk Availability API Documentation</strong> Check up to 20 properties for one stay with a single request. Send the offer ids as a comma list. The answer lists the free days and the fitting check-out days.</p>

- **Documentation:** [https://scrappa.co/docs/holidu-api/holidu_bulk_availability](https://scrappa.co/docs/holidu-api/holidu_bulk_availability)
- **API group:** Holidu API
- **Endpoint:** `GET https://scrappa.co/api/holidu/availability/bulk`

## Authentication

Send your Scrappa API key in the `X-API-KEY` request header. Paid endpoints also support accountless x402 payments when called without an API key.

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `offer_ids` | string | Yes | Comma-separated offer ids, 1 to 20. Example: 63793870,63793871. |
| `check_in` | string | Yes | Check-in date, YYYY-MM-DD, today or later. |
| `check_out` | string | Yes | Check-out date, after check-in, at most 30 nights. |
| `adults` | integer | No | Number of adults, 1 to 30. Defaults to 2. |
| `market` | string | No | Country site: com (USD), de (EUR), uk (GBP) or fr (EUR). Defaults to com. An unknown value is rejected. |

## Example response

```json
{
    "data": {
        "market": "com",
        "check_in": "2026-12-01",
        "check_out": "2026-12-05",
        "offer_ids": [
            "63793870",
            "63793871"
        ],
        "availability": {
            "available_days": [
                "2026-10-29",
                "2026-10-30"
            ],
            "checkin_to_checkout_dates": {
                "2026-10-30": [
                    "2026-11-02",
                    "2026-11-03"
                ],
                "2026-10-31": [
                    "2026-11-03"
                ]
            }
        }
    },
    "meta": {
        "billable": true,
        "endpoint_family": "bulk_availability"
    },
    "success": true
}
```

## Errors

| Status | Error | Description |
| --- | --- | --- |
| 422 | Validation Error | A required query parameter is missing or invalid. This response is not billable. |
| 503 | Service Unavailable | Holidu could not be reached, answered with an unexpected shape or returned a result that does not match the request. This response is not billable. Retry later. |

## More Scrappa resources

- [API documentation](https://scrappa.co/docs)
- [Full LLM-readable API reference](https://scrappa.co/llms-full.txt)
- [OpenAPI specification](https://scrappa.co/docs/api.json)
- [Pricing](https://scrappa.co/pricing)