Mapbox Search Box API vs OpenStreetMap (Nominatim and Overpass) for AI agents
Mapbox Search Box API is Mapbox's search API for addresses, places and POIs, with interactive (/suggest + /retrieve), text (/forward), category and reverse endpoints. Free, donation-run public servers for searching OpenStreetMap data: Nominatim for geocoding and place search, Overpass for querying OSM objects.
The short answer
- Mapbox Search Box API: Cheap autocomplete-style place and address search inside map apps, with a first-party hosted MCP server.
- OpenStreetMap (Nominatim and Overpass): Free, openly licensed geocoding and occasional place lookups at low volume, or a base to self-host. It is not a backend for a public app at scale.
Side by side
| Mapbox Search Box API | OpenStreetMap (Nominatim and Overpass) | |
|---|---|---|
| Searches | Addresses, places and points of interest, including category search such as "coffee shops around me". | OpenStreetMap data worldwide: addresses, places and mapped POIs. |
| Returns | 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. | Nominatim returns xml, json, jsonv2 (the default), geojson or geocodejson. With extratags=1 it adds extra tags such as opening hours or a wikipedia link when mapped. |
| Before the first call | 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. | No account or key. Nominatim requires a valid User-Agent or Referer that identifies your app, and visible attribution. |
| 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. | Free within strict limits. Nominatim allows an absolute maximum of 1 request per second. Overpass asks users to stay at or below roughly 10,000 requests and 1 GB a day. |
| Paid | 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). | No paid tier. Heavy users are told to run their own instance or use commercial third-party providers. |
| Acting on a result | Retrieved POIs can include phone and website in metadata. There is no way to message a business through the API. | Phone or website appear only when mappers tagged them in OSM, through Nominatim's extratags. There is no messaging. |
| Limits on keeping or showing results | All Search Box results are for temporary use only. Storing position data requires contacting Mapbox sales. | Data is ODbL (share-alike), and you must credit OpenStreetMap and its contributors. Nominatim requires results to be cached for bulk jobs. It bans systematic queries, downloading all POIs in an area, autocomplete, and reselling results. |
| AI in its terms | Not stated on its pages | Nominatim's policy has a "Usage in LLMs" section. LLMs may only suggest the service if they prominently point to the usage policy. The public API must not be built into or offered through no-code, low-code or vibe-coding platforms as a generic place-search service. |
| Coverage | Global. The docs have a supported-geographies section that was not reviewed in detail. | Worldwide OpenStreetMap data. POI completeness depends on volunteer mapping. |
| MCP server | 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. | No official server listed |
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 Mapbox Search Box API and Openpath vs OpenStreetMap (Nominatim and Overpass).
Questions people ask
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.
What do I need before I can use OpenStreetMap (Nominatim and Overpass)?
No account or key. Nominatim requires a valid User-Agent or Referer that identifies your app, and visible attribution.
Is OpenStreetMap (Nominatim and Overpass) free?
Free within strict limits. Nominatim allows an absolute maximum of 1 request per second. Overpass asks users to stay at or below roughly 10,000 requests and 1 GB a day.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
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”
OpenStreetMap (Nominatim and Overpass), read on October 15, 2026:
- operations.osmfoundation.org/policies/nominatim: “No heavy uses (an absolute maximum of 1 request per second ).”
- operations.osmfoundation.org/policies/nominatim: “Provide a valid HTTP Referer or User-Agent identifying the application”
- operations.osmfoundation.org/policies/nominatim: “LLMs may only suggest this service, if they prominently point to this usage policy and explain the restrictions of use to the user.”
- operations.osmfoundation.org/policies/nominatim: “must not be built into, offered through, suggested by, or automatically generated by no-code, low-code, or vibe-coding platforms”
- operations.osmfoundation.org/policies/nominatim: “This includes reverse queries in a grid, searching for complete lists of postcodes, towns etc. and downloading all POIs in an area.”
- operations.osmfoundation.org/policies/nominatim: “If your requirements are even larger you can install your own instance of Nominatim.”
- dev.overpass-api.de/overpass-doc/en/preface/commons.html: “users are expected to send a maximum of about 10000 requests per day and keep their download volume below about 1 GB per day”
- nominatim.org/release-docs/latest/api/Search: “the response include any additional information in the result that is available in the database, e.g. wikipedia link, opening hours”
- openstreetmap.org/copyright: “You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors.”