MCP Server: French Administrative Geography — Communes, INSEE, Reverse Geocoding

An MCP server for AI agents that resolves French administrative geography — communes, departments, regions and intercommunalités (EPCI) — by name, postal code, INSEE code or lat/lon (reverse geocoding). Backed by the official geo.api.gouv.fr (Découpage administratif). 7 tools, no API key, $0.005 per tool call.

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What is the French Geography MCP Server?

This is an Apify-hosted Model Context Protocol (MCP) server: a set of small, fast lookup tools an AI agent can call to work with French geography. Resolving an INSEE code, finding the commune for a postal code, or reverse-geocoding a GPS point to its commune are exactly the kind of per-call lookups that fit the MCP model — no bulk dataset, just precise answers.

It is backed by the official, free French government API geo.api.gouv.fr (no API key, no rate-limit issues), and is a natural building block alongside our other French data actors.

Tools

Tool	What it does
search_communes	Find communes by name and/or postal code (INSEE code, population, GPS).
get_commune	Full detail for a commune by INSEE code (population, area, centre, EPCI, SIREN).
reverse_geocode	Lat/lon point → the commune that contains it.
communes_by_department	List the communes of a department code.
get_department	Resolve a department by code or name → name, code, parent region.
get_region	Resolve a region by code or name → name, code, its departments.
list_epci	List intercommunalités (EPCI), filtered by name and/or department.

Call mode=list_tools (free) to get the full input schema of every tool.

Use cases

• Enrich French data pipelines — resolve INSEE codes ↔ names ↔ postal codes on the fly.
• Reverse geocoding — turn GPS coordinates into the administrative commune.
• Agent tooling — give an LLM agent reliable French geography lookups without bundling a dataset.
• Data normalisation — map departments/regions to their official codes and hierarchy.
• Territorial analysis — list communes of a department or members of an EPCI.

Input

{ "mode": "list_tools" }

{
  "mode": "call_tool",
  "tool_name": "reverse_geocode",
  "arguments": { "lat": 48.8566, "lon": 2.3522 }
}

Output

{
  "type": "commune",
  "name": "Lyon",
  "insee_code": "69123",
  "postal_codes": ["69001", "69002", "69003"],
  "department_code": "69",
  "region_code": "84",
  "population": 519127,
  "area_hectares": 4797.43,
  "latitude": 45.758,
  "longitude": 4.8351,
  "epci_code": "200046977",
  "epci_name": "Métropole de Lyon"
}

Pricing

PAY_PER_EVENT — $0.005 per tool call (mode=list_tools is free). Charged once per call regardless of how many rows the tool returns.

FAQ — French geography API for AI agents

Where does the data come from? The official geo.api.gouv.fr (Découpage administratif, INSEE/Etalab). No API key, free, public.

Is reverse geocoding supported? Yes — reverse_geocode returns the commune containing a lat/lon point.

Does it cover Corsica and overseas? Yes — Corsica (2A/2B) and overseas departments are handled via their codes.

How do I discover the tools? Run with mode=list_tools (free) to get the catalog and each tool's input schema.

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License: MIT · Author: dltik