Create a Yelp developer app at yelp.com/developers to obtain an API key, then call GET https://api.yelp.com/v3/businesses/search with an Authorization: Bearer <api_key> header
Pass categories=foodtrucks to scope results to the Food Trucks category alias, combined with location (free text) or latitude/longitude plus radius (meters, max 40000)
Use term for keyword narrowing (e.g. 'tacos'), open_now or open_at for availability filtering, and sort_by=distance or best_match
Paginate with limit (max 50 per call) and offset (max 1000), since the endpoint returns at most 240 businesses per search
Known gotchas
The API excludes businesses with zero reviews, so newly listed food trucks without any Yelp reviews yet will not appear in search results
foodtrucks is a category alias, not a verified business attribute - some trucks are miscategorized under a related cuisine alias by their owner and won't match a categories=foodtrucks filter
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