io.github.cyanheads/nominatim-mcp-server

Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.

1 0 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 4d ago

Works with most clients

Transport:

0 tools

Grade F

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Maps & Geo

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-cyanheads-nominatim-mcp-server": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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Read me

What io.github.cyanheads/nominatim-mcp-server does

Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Score breakdown

30/100across 5 weighted dimensions

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−70

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Security

OSV.dev

No known CVEs.

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Frequently Asked Questions

Is io.github.cyanheads/nominatim-mcp-server safe to use?: io.github.cyanheads/nominatim-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.cyanheads/nominatim-mcp-server?: io.github.cyanheads/nominatim-mcp-server can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.cyanheads/nominatim-mcp-server?: io.github.cyanheads/nominatim-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is io.github.cyanheads/nominatim-mcp-server actively maintained?: io.github.cyanheads/nominatim-mcp-server is actively maintained — last commit was 4 days ago. It has 1 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

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

openstreetmap_reverse

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

Zoom-level contro

Frequently Asked Questions

Is io.github.cyanheads/nominatim-mcp-server safe to use?

io.github.cyanheads/nominatim-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.cyanheads/nominatim-mcp-server?

io.github.cyanheads/nominatim-mcp-server can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with io.github.cyanheads/nominatim-mcp-server?

io.github.cyanheads/nominatim-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is io.github.cyanheads/nominatim-mcp-server actively maintained?

io.github.cyanheads/nominatim-mcp-server is actively maintained — last commit was 4 days ago. It has 1 GitHub stars.

@cyanheads/openstreetmap-mcp-server

Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data via MCP. STDIO or Streamable HTTP.

6 Tools

Public Hosted Server: https://openstreetmap.caseyjhand.com/mcp

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

`openstreetmap_reverse`

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

Zoom-level contro

... View full README on GitHub