Nominatim

live Geography

Forward and reverse geocoding using OpenStreetMap Nominatim

3 tools

0ms auth

free tier 50 calls/day

Tools

search_address required: query

Forward geocode a free-form address or place name using OpenStreetMap Nominatim. Returns matching places with coordinates.

Parameters

Name Type Description

query req string Free-form address or place name to search for (e.g. "Eiffel Tower, Paris").

limit opt number Maximum number of results to return. Defaults to 5, max 50.

▶ Try it

Response

reverse_geocode required: lat, lon

Reverse geocode a latitude/longitude coordinate pair to a human-readable address using OpenStreetMap Nominatim.

Parameters

Name Type Description

lat req number Latitude in decimal degrees (e.g. 48.8584).

lon req number Longitude in decimal degrees (e.g. 2.2945).

▶ Try it

Response

lookup required: ids

Look up one or more OpenStreetMap objects by their OSM IDs (e.g. "N123456,W654321,R111"). Prefix N=node, W=way, R=relation.

Parameters

Name Type Description

ids req string Comma-separated list of OSM IDs with type prefix (e.g. "N123456,W654321"). N=node, W=way, R=relation.

▶ Try it

Response

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools

bash

curl -X POST https://gateway.pipeworx.io/nominatim/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Call a tool

bash

curl -X POST https://gateway.pipeworx.io/nominatim/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_address","arguments":{"query": "hello"}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript

import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("search_address", {"query":"example"});

ask_pipeworx

// Or ask in plain English:
const answer = await px.ask("forward and reverse geocoding using openstreetmap nominatim");

Related packs

Other Pipeworx packs in the same categories (Geography):

MCP Config

claude_desktop_config.json

{
  "mcpServers": {
    "pipeworx-nominatim": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gateway.pipeworx.io/nominatim/mcp"
      ]
    }
  }
}