SerpAPI-compatible engine identifier. Only google_hotels is accepted.

Location query for hotel search (e.g., "Paris, France", "Near Eiffel Tower")

Check-in date in YYYY-MM-DD format (must be today or future date)

Check-out date in YYYY-MM-DD format (must be after check-in date)

Number of adult guests (1-10)

Number of children (0-6)

3-letter currency code for prices (e.g., USD, EUR, GBP)

2-letter country code for localization (e.g., us, gb, de, fr)

2-letter language code for results (e.g., en, es, fr, de)

Sort order: 3 (price lowest first), 8 (rating highest first), 13 (most reviewed first)

Minimum price per night filter

Maximum price per night filter (must be greater than min_price)

Filter by hotel star rating IDs (comma-separated): 2, 3, 4, or 5

Filter for hotels with free cancellation (true/false)

Comma-separated children ages (1-17 years old). Count must match children.

Minimum guest rating filter: 7 (3.5+), 8 (4.0+), 9 (4.5+)

Filter by amenity IDs (SerpAPI list, comma-separated). Example: 35 (Free Wi-Fi), 9 (Free breakfast), 15 (Bar)

Filter for vacation rental properties only (Airbnb-style properties) instead of hotels

Filter for eco-certified/sustainable hotels only

Filter for hotels with special offers/deals

Filter by property type IDs (SerpAPI list, comma-separated). Example: 12 (Beach hotels), 1 (Apartments)

Filter by brand IDs (use brands[].id from response)

Minimum number of bedrooms (1-20, vacation rentals only)

Minimum number of bathrooms (1-20, vacation rentals only)

Pagination token from previous response

Property token for a specific hotel (from search results)