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Come collegare Nominatim (OpenStreetMap) a ChatGPT — via MCP

Free, no-auth geocoding using OpenStreetMap's Nominatim service. Forward + reverse geocoding + place lookup + search. 4 tools.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

No credit card · 7-day trial · Self-host alternative available

MCP connector

Nominatim (OpenStreetMap)

Free, no-auth geocoding using OpenStreetMap's Nominatim service. Forward + reverse geocoding + place lookup + search. 4 tools.

Tools

4

Region

INTL

Category

maps

Authentication

Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Source-available BSL-1.1
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

No install? Use cloud.anythingmcp.com directly.

Sign in, install the Nominatim (OpenStreetMap) in one click, paste the credentials, mint an MCP API key — done. No Docker, no git clone, no local server to run.

Open Cloud

💡 Niente installazione? Vai direttamente su cloud.anythingmcp.com. Accedi, clicca Connectors → Nominatim (OpenStreetMap), inserisci le credenziali, genera una MCP API key — fatto. Niente Docker, niente git clone, niente server locale.

Nominatim (OpenStreetMap) + ChatGPT

Free, no-auth geocoding using OpenStreetMap's Nominatim service. Forward + reverse geocoding + place lookup + search. 4 tools.

Prerequisiti

Le istruzioni di setup complete sono incluse nel connettore stesso (visibili nello store quando lo selezioni). Le variabili d'ambiente richieste sono:

(none — public API)

Step 1 — Ottieni le credenziali

org).

Setup: NO API KEY REQUIRED. Just install the connector. The base URL is https://nominatim.openstreetmap.org.

HOWEVER — usage policy you MUST respect (otherwise you'll get banned):

  1. Max 1 request per second per IP. The connector does NOT throttle for you — your agent must self-limit. For bulk usage, run a self-hosted Nominatim or use a paid Nominatim host.
  2. User-Agent header REQUIRED — every request must identify you. The connector pins User-Agent: AnythingMCP (https://anythingmcp.com) automatically.
  3. No heavy bulk geocoding — if you need >100 requests/hour, switch to MapTiler / OpenCage / Mapbox / Google.

Step 2 — Installa l'adapter

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

Step 3 — Aggiungi il connettore in ChatGPT

ChatGPT supporta server MCP tramite la funzione Connectors (piani Plus / Pro / Team / Enterprise). Il piano gratuito non supporta connettori personalizzati.

  1. Apri ChatGPT → Impostazioni → Connectors (o clicca l'icona 🔧 nel composer → Manage connectors).
  2. Clicca "Add custom connector".
  3. Compila:
    • Name: Nominatim (OpenStreetMap)
    • MCP server URL: https://cloud.anythingmcp.com/mcp
    • Authentication: Bearer token → incolla la tua MCP API key (da AnythingMCP → Profile → MCP API Keys → New Key)
  4. Clicca Connect per autorizzare.

Tool disponibili

ToolWhat it does
nominatim_searchForward geocode (free-text address → coordinates + structured address)
nominatim_reverseReverse geocode (coordinates → address)
nominatim_lookupLook up known OSM IDs (N1234, W5678, R9012 for nodes/ways/relations)
nominatim_statusService status check

FAQ

Il piano free di ChatGPT funziona con i Connectors MCP custom? No — servono Plus, Pro, Team o Enterprise.

Prossimi passi

Ready to ship

Your Nominatim agent is one click away.

Install the connector, paste the key, prompt ChatGPT. Free for 7 days, no credit card.