Zippopotam MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 640 installs a week from npm. Last commit 28 Oct 2026.
Postal code lookup for 60+ countries: place names, state and coordinates from a ZIP or postcode
Today is the operative word: we check Zippopotam MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add zippopotam-mcp -- npx -y @mrfentmen/zippopotam-mcp
{
"mcpServers": {
"zippopotam-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/zippopotam-mcp"
]
}
}
}
[mcp_servers.zippopotam-mcp]
command = "npx"
args = ["-y", "@mrfentmen/zippopotam-mcp"]
{
"mcpServers": {
"zippopotam-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/zippopotam-mcp"
]
}
}
}
{
"servers": {
"zippopotam-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mrfentmen/zippopotam-mcp"
]
}
}
}
Postal code lookup with place names and coordinates for 60+ countries. Via Zippopotam.us.
Look up US postal codes, cities, and states from Zippopotam. No key required.
Resolve Canadian postal codes to city, province and coordinates.
Validate and normalize postal codes offline for 252 countries and territories. Format check only.
Make shape-free 2D codes (WIA Code) and convert coordinates to and from WIA Pin Codes.
Postal lookups for 120 countries with cited sources; deep US tier: demographics, climate, area codes
Create choropleth, category and pin maps of countries, states, counties and ZIP codes as images.
Address to coordinates and back, postal codes, worldwide (OpenStreetMap). Free, no key.
Answers built from our own checks of this server.