openstreetmap-mcp-server

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Tools

6 tools for geocoding and spatial queries against OpenStreetMap data:

Tool	Description
openstreetmap_geocode	Convert a place name or address to geographic coordinates and structured place data
openstreetmap_reverse	Convert latitude/longitude coordinates to the nearest address or place name
openstreetmap_lookup	Fetch address details for one or more known OSM objects by their IDs
openstreetmap_query_nearby	Find OSM features within a radius around a geographic point
openstreetmap_query_bbox	Find OSM features within a rectangular bounding box
openstreetmap_query_raw	Execute a raw Overpass QL query for advanced spatial operations

openstreetmap_geocode

Convert a place name or address to geographic coordinates via Nominatim/OpenStreetMap.

• Two input modes: free-form query string (e.g., "Space Needle Seattle") or structured address fields (street, city, state, country, postal code) — mutually exclusive
• Country filtering via ISO 3166-1 alpha-2 codes (countrycodes)
• Data layer filtering: address, poi, railway, natural, manmade
• Feature type restriction: country, state, city, settlement
• Optional extra OSM tags (phone, website, opening_hours, wikidata)
• Preferred language override via BCP 47 code
• Returns results ordered by Nominatim importance score (global prominence)
• Results include coordinates, structured address, bounding box, OSM type/ID for chaining into openstreetmap_lookup

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openstreetmap_reverse

Convert latitude/longitude to the nearest address or named place.

• Zoom-level control for address detail: 18=building, 16=street, 14=neighbourhood, 12=town, 10=city, 8=county, 5=state, 3=country
• Layer filtering for matched OSM object type
• Optional extra OSM tags and language preference
• Returns structured address breakdown, OSM type/ID, and bounding box

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openstreetmap_lookup

Fetch full Nominatim address records for known OSM object IDs.

• Accepts single ID or array of up to 50 IDs
• IDs must be prefixed with N (node), W (way), or R (relation): e.g., "N240109189", "W50637691", "R146656"
• Efficient alternative to a full geocoding round-trip when OSM IDs are already known (e.g., from an Overpass result)
• Reports not_found list for IDs that returned no result
• Optional extra OSM tags and language preference

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openstreetmap_query_nearby

Find OSM features within a radius around a point via the Overpass API.