Sthan Io runs on your own machine — the client starts it, so there is no endpoint to ping. 97 installs a week from npm. Last commit 16 Oct 2026.
US address verification, parsing, autocomplete, geocoding, and IP geolocation APIs.
Nothing serious here today
Today is the operative word: we check Sthan Io every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
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 mcp-server -e 'STHAN_API_KEY=<STHAN_API_KEY>' -- npx -y @sthan/mcp-server{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@sthan/mcp-server"
],
"env": {
"STHAN_API_KEY": "<STHAN_API_KEY>"
}
}
}
}[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@sthan/mcp-server"]
env = { STHAN_API_KEY = "<STHAN_API_KEY>" }{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@sthan/mcp-server"
],
"env": {
"STHAN_API_KEY": "<STHAN_API_KEY>"
}
}
}
}{
"servers": {
"mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@sthan/mcp-server"
],
"env": {
"STHAN_API_KEY": "<STHAN_API_KEY>"
}
}
}
}Put your own value in place of
<STHAN_API_KEY> (Your sthan.io API key (get one free at https://sthan.io/dashboard)).
The author’s registry entry marks it as required.
Alternatives to Sthan Io
same job, measured the same wayAustralian address autocomplete, validation and geocoding from G-NAF, the national register.
Geolocation tools (reverse geocoding, ip lookup, etc) using Jeleo Geolocation API
Geocode addresses, autocomplete searches and reverse geocode coordinates on open data. Free tier.
Geolocation for an IP address from Geolocation DB. No key required.
IP geolocation from freeipapi.com for any IPv4 address. No key required.
Geolocate an IP address: country, region, city, and ISP. No key required.
Geocoding, elevation, IP geolocation and coordinate transforms from the MapTiler Cloud API.
Census Bureau geocoding API: address to coordinates and census geography.
Sthan Io — questions
Answers built from our own checks of this server.