Convertir des coordonnées GPS en adresse (géocodage inverse)
AI agents call reverse_geocode to retrieve information from French Open Data & IGN without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a one-way lookup conversion of GPS coordinates to human-readable addresses. It retrieves existing public geographic data with no side effects, modifications, deletions, code execution, or financial impact. The operation is read-only and returns informational data from public French geographic databases.
From the tool's definition Tool name 'reverse_geocode' and description 'Convertir des coordonnées GPS en adresse' (Convert GPS coordinates to address) indicates a query operation that retrieves address information based on geographic coordinates.
Documented attack patterns abuse exactly the kind of access reverse_geocode gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and French Open Data & IGN, and nothing reaches the server without passing your rules. This is the rule we recommend for reverse_geocode:
{
"version": "1",
"default": "deny",
"tools": {
"reverse_geocode": {}
}
}reverse_geocode is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Convertir des coordonnées GPS en adresse (géocodage inverse). It is categorised as a Read tool in the French Open Data & IGN MCP Server, which means it retrieves data without modifying state.
Register the French Open Data & IGN MCP server in PolicyLayer and add a rule for reverse_geocode: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches French Open Data & IGN. Nothing to install.
reverse_geocode is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the reverse_geocode rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for reverse_geocode. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
reverse_geocode is provided by the French Open Data & IGN MCP server (nikoko107/mcp-datagouv-ign). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from French Open Data & IGN, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
26 French Open Data & IGN tools catalogued and risk-classified — across an index of 43,000+ MCP servers.