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MCP servers · maps

Nominatim (OpenStreetMap search) MCP server

Place names to coordinates and back, on OpenStreetMap — no key. Public server: one request per second at most, never in bulk. Hosted by 0n3: 4 endpoints your AI can call with your own Nominatim (OpenStreetMap search) account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.

Connect Nominatim (OpenStreetMap search)Install into your AIWatch it work

4 endpoints2 categoriesauth: nonehosted

What your AI can do with Nominatim (OpenStreetMap search)

Geocode · Find a place by name, name the place at a coordinate, or look up OpenStreetMap ids0
Find a place by name, name the place at a coordinate, or look up OpenStreetMap ids
More · Everything else this app exposes.4
SearchGET /search
ReverseGET /reverse
LookupGET /lookup
StatusGET /status

Install in three steps

  1. Create a free account at 0n3.app and connect Nominatim (OpenStreetMap search): paste a key or sign in through a door. It lands in your vault, encrypted.
  2. Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
  3. Ask your AI: whoami. It answers with your connected services. Then ask it to list customers in Nominatim (OpenStreetMap search).
Paste this in Terminal and press Enter
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"

Connect Nominatim (OpenStreetMap search) to

Claude Code + Nominatim (OpenStreetMap search)MCP server + skillClaude (desktop & claude.ai) + Nominatim (OpenStreetMap search)connectorChatGPT + Nominatim (OpenStreetMap search)connector · GPT actionGrok Bot (xAI) + Nominatim (OpenStreetMap search)custom connectorCodex CLI + Nominatim (OpenStreetMap search)MCP serverGemini CLI + Nominatim (OpenStreetMap search)MCP serverCursor + Nominatim (OpenStreetMap search)MCP serverVS Code (Copilot) + Nominatim (OpenStreetMap search)MCP serverWindsurf + Nominatim (OpenStreetMap search)MCP server

More maps MCP servers

GraphHopper15 endpointsOpenStreetMap13 endpointsOverpass (OpenStreetMap query)2 endpoints

Questions

What can an AI do with the Nominatim (OpenStreetMap search) MCP server?

4 things: geocode, more. Every call runs with your own Nominatim (OpenStreetMap search) connection and lands on a receipt.

Do I need to run anything on my computer?

No. 0n3 is hosted. Connect Nominatim (OpenStreetMap search) once, install 0n3 into your AI with one line, done.

Where does my Nominatim (OpenStreetMap search) key go?

Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.