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Cómo conectar Nominatim (OpenStreetMap) a Gemini — 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

Nominatim (OpenStreetMap)

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

Public API

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

TL;DR

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

💡 ¿Sin instalación? Usa cloud.anythingmcp.com directamente. Inicia sesión, pulsa Connectors → Nominatim (OpenStreetMap), pega tus credenciales, genera una MCP API key — listo. Sin Docker, sin git clone, sin servidor local.

Nominatim (OpenStreetMap) + Gemini

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

Requisitos previos

Las instrucciones de configuración completas están incluidas en el conector (visibles en el store al seleccionarlo). Las variables de entorno requeridas:

(none — public API)

Paso 1 — Obtener credenciales

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.

Paso 2 — Instalar el adapter

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

Paso 3 — Añadir el conector en Gemini

Gemini CLI lee servidores MCP desde ~/.gemini/settings.json (o %APPDATA%\gemini\settings.json en Windows). Añade:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_MCP_API_KEY" }
    }
  }
}
  1. Obtén tu MCP API key desde AnythingMCP → Perfil → MCP API Keys → Nueva Key.
  2. Guarda el archivo y reinicia gemini.
  3. Ejecuta /mcp en la Gemini CLI — Nominatim (OpenStreetMap) debería aparecer como disponible.
  4. Vertex AI Studio: pasa https://cloud.anythingmcp.com/mcp al array tools de tu petición con el mismo header Bearer.

Herramientas disponibles

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

¿Gemini 1.5 Pro o 2.x soportan MCP? Sí — Gemini CLI ≥ 0.4 y la API de tools de Vertex AI aceptan conectores MCP httpUrl con header Bearer.

Siguientes pasos

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