Foursquare Places API vs Mapbox Search Box API for AI agents
Foursquare Places API is Foursquare's pay-as-you-go API for searching and reading point-of-interest data from its global places database. Mapbox Search Box API is Mapbox's search API for addresses, places and POIs, with interactive (/suggest + /retrieve), text (/forward), category and reverse endpoints.
The short answer
- Foursquare Places API: A low-cost global POI API with phone, website and email at the cheaper Pro tier. Good for place lookup and matching where Google-style display rules are too tight.
- Mapbox Search Box API: Cheap autocomplete-style place and address search inside map apps, with a first-party hosted MCP server.
Side by side
| Foursquare Places API | Mapbox Search Box API | |
|---|---|---|
| Searches | POIs worldwide: Place Search, Place Details, Autocomplete, Place Match, Tips and Photos. | Addresses, places and points of interest, including category search such as "coffee shops around me". |
| Returns | JSON place records. Pro fields include fsq_place_id, name, coordinates, address, categories, chains, tel, website, email and social handles. Premium fields add hours, rating, price, photos, tips and popularity. | JSON features with name, address, coordinates, POI categories, mapbox_id and optional metadata such as phone, website, open hours, rating and photos. Each response includes an attribution string. |
| Before the first call | A Foursquare developer account and a Service API key. Usage beyond the free calls is paid through credits or a card on file. | A Mapbox account and access token. You can sign up without a credit card, but you get trial usage limits until you add a payment method. |
| Free | 500 free Pro calls a month since June 1, 2026, by its docs; the pricing page also says “up to 10,000 free calls on Pro endpoints” | Introductory preview pricing: 500 interactive sessions a month and 50,000 /category or /reverse requests a month. The page also shows a "Standard pricing" table (2,500 and 25,000 free), and which table applies when was not stated in the text read. |
| Paid | Pro endpoints: $15.00 per 1,000 calls (501 to 100,000), falling to $9.00 at volume. Premium endpoints: $18.75 per 1,000 (up to 100,000). Ask endpoints: $30 (Pro) or $36 (Premium) per 1,000. | Sessions: $3.00 per 1,000 under the introductory preview pricing, or $11.50 per 1,000 under the standard pricing. /category and /reverse: $1.00 per 1,000 (intro) or $1.70 (standard). |
| Acting on a result | Phone (tel), website and email are Pro fields. There is no way to message a business through the API. | Retrieved POIs can include phone and website in metadata. There is no way to message a business through the API. |
| Limits on keeping or showing results | The Developer Master Terms forbid creating derivative works of the service or its underlying data. They also treat place data as Foursquare Confidential Information, even where the facts are public. No specific cache period was found. | All Search Box results are for temporary use only. Storing position data requires contacting Mapbox sales. |
| AI in its terms | The terms forbid accessing the service "to develop or improve any point-of-interest or venue dataset, algorithm, or machine learning operation(s)." The product page markets the API for AI agents through MCP. | Not stated on its pages |
| Coverage | Foursquare says 100M+ POI across 200+ countries. | Global. The docs have a supported-geographies section that was not reviewed in detail. |
| MCP server | foursquare/foursquare-places-mcp on GitHub (https://github.com/foursquare/foursquare-places-mcp). The README says MCP is currently supported for local use only. | Mapbox MCP Server, hosted at https://mcp.mapbox.com/mcp (OAuth) and open source at https://github.com/mapbox/mcp-server. The search tools use the Search Box API. |
Where Openpath fits
If the agent needs a local business to message in Austin, Texas, Openpath returns the listings themselves, free and with no key. See Openpath vs Foursquare Places API and Openpath vs Mapbox Search Box API.
Questions people ask
What do I need before I can use Foursquare Places API?
A Foursquare developer account and a Service API key. Usage beyond the free calls is paid through credits or a card on file.
Is Foursquare Places API free?
500 free Pro calls a month since June 1, 2026, by its docs; the pricing page also says “up to 10,000 free calls on Pro endpoints”.
What do I need before I can use Mapbox Search Box API?
A Mapbox account and access token. You can sign up without a credit card, but you get trial usage limits until you add a payment method.
Is Mapbox Search Box API free?
Introductory preview pricing: 500 interactive sessions a month and 50,000 /category or /reverse requests a month. The page also shows a "Standard pricing" table (2,500 and 25,000 free), and which table applies when was not stated in the text read.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Foursquare Places API, read on October 15, 2026:
- foursquare.com/pricing: “0 – 500 Calls 501 to 100,000 Calls 100,001 to 500,000 Calls 500,001+ Calls $0.00 CPM $15.00 CPM $12.00 CPM $9.00 CPM”
- foursquare.com/pricing: “0 – 100,000 Calls 100,001 to 500,000 Calls 500,001+ Calls $18.75 CPM $15.00 CPM $11.25 CPM”
- foursquare.com/pricing: “Pro Premium $30.00 CPM $36.00 CPM”
- foursquare.com/pricing: “Enjoy up to 10,000 free calls on Pro endpoints.”
- docs.foursquare.com/developer/reference/upcoming-changes: “Beginning June 1, 2026, the following Places API & V2 Pro endpoint rates go into effect for all users”
- docs.foursquare.com/developer/reference/upcoming-changes: “You will now receive 500 free Pro calls.”
- docs.foursquare.com/data-products/docs/places-pro-and-premium: “tel: Telephone number of a POI with local formatting”
- docs.foursquare.com/data-products/docs/places-pro-and-premium: “email: Primary contact email address of organization, if available”
- foursquare.com/legal/terms/enterprise-developermasterterms: “access the Foursquare Service to develop or improve any point-of-interest or venue dataset, algorithm, or machine learning operation(s)”
- foursquare.com/legal/terms/enterprise-developermasterterms: “create derivative works of the Foursquare Service or any underlying data”
- foursquare.com/legal/terms/enterprise-developermasterterms: “point of interest data for New York City would be confidential, even if individual venue commercial addresses are public”
- foursquare.com/products/places-api: “100M+ POI across 200+ countries”
- foursquare.com/products/places-api: “Build AI Agents that are situationally aware and tailored to the user's surroundings with a Model Context Protocol (MCP) server”
- github.com/foursquare/foursquare-places-mcp: “Currently MCP is only supported for local use”
Mapbox Search Box API, read on October 15, 2026:
- mapbox.com/pricing: “Introductory preview pricing* Monthly sessions Up to 500 501 - 100,000 ... Cost per 1,000 Free $3.00”
- mapbox.com/pricing: “Standard pricing Monthly requests Up to 2,500 2,501 - 100,000 ... Cost per 1,000 Free $11.50”
- mapbox.com/pricing: “Request to /category and /reverse endpoints are billed on a per-request basis.”
- mapbox.com/pricing: “Monthly requests Up to 50,000 50,001 - 500,000 ... Cost per 1,000 Free $1.00”
- mapbox.com/pricing: “A session includes 50 /suggest calls, and 1 /retrieve call, and it will automatically expire after 2 minutes of inactivity.”
- docs.mapbox.com/accounts/guides/signup: “Quick sign-up without a credit card gives you access to Mapbox services with trial usage limits.”
- docs.mapbox.com/api/search/search-box: “all data returned by the Search Box API endpoints is only available for temporary use”
- docs.mapbox.com/api/search/search-box: “"metadata" : { "phone" : "PHONE_NUMBER" , "website" : "WEBSITE_URL" , "open_hours"”
- docs.mapbox.com/api/guides/mcp-server: “This endpoint is available at https://mcp.mapbox.com/mcp”