Are there any data sources for places of interest (POIs) in JSON format?

Yes, there are several data sources and APIs that provide places of interest (POIs) in JSON format. Here are a few options:

Google Places API

The Google Places API returns formatted location data and imagery about establishments, geographic locations, or prominent points of interest in JSON format. You can make requests to specific endpoints, such as the Place Details endpoint, to get detailed information about a place, including its address components, using a URL like this:

https://maps.googleapis.com/maps/api/place/details/json?place_id=ChIJrTLr-GyuEmsRBfy61i59si0&fields=address_components&key=YOUR_API_KEY

This API supports authorization via API keys or OAuth tokens4.

TomTom Search API

TomTom's Search API includes a Points of Interest endpoint that returns POI results in JSON format. You can search for POIs using a query, and the response will include detailed information such as the name, address, telephone number, website, and categories of the POIs.

https://api.tomtom.com/search/2/poiSearch/eiffel.json?key={Your_API_Key}

The response includes a structured format with various fields describing the POIs5.

SafeGraph Places Data

While not an API, SafeGraph offers a comprehensive dataset of POIs that can be downloaded and used. The dataset includes robust geospatial attributes, such as address strings, geographic coordinates, brand affiliations, and category codes, all in a format that can be easily converted to JSON. This data is particularly useful for data scientists, product managers, and analysts2.

OpenStreetMap (OSM)

Although more complex to process, OpenStreetMap data can be extracted and converted into JSON format. You would need to use tools like osmconvert, osmfilter, or the osmium command-line tool to process the OSM data. However, this method requires additional steps to handle cases where address information is not explicitly tagged and needs to be deduced from surrounding data1.

Each of these sources has its own strengths and may be more suitable depending on your specific needs and the level of detail you require.