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Sthan Io MCP Server

Developer ToolsLow Risk9.7MCP RegistryLocal
Free

Server data from the Official MCP Registry

US address verification, parsing, autocomplete, geocoding, and IP geolocation APIs.

About

US address verification, parsing, autocomplete, geocoding, and IP geolocation APIs.

Security Report

9.7
Low Risk9.7Low Risk

Valid MCP server (2 strong, 4 medium validity signals). No known CVEs in dependencies. ⚠️ Package registry links to a different repository than scanned source. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.

9 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Your sthan.io API key (get one free at https://sthan.io/dashboard)Required

Environment variable: STHAN_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-sthan-io-mcp-server": {
      "env": {
        "STHAN_API_KEY": "your-sthan-api-key-here"
      },
      "args": [
        "-y",
        "sthan-cli"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Sthan MCP Server

npm version License: MIT

MCP server for sthan.io — give your AI assistant the ability to verify, parse, autocomplete, and geocode US addresses, and look up IP geolocation. Works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and any MCP-compatible client.

8 tools · TypeScript · stdio transport · Free tier, no credit card required.


Why use it

  • Real US postal data — addresses are verified against authoritative postal records, not heuristics. Returns delivery point validation (DPV), ZIP+4, residential/commercial flag.
  • Sub-100ms autocomplete — typeahead-grade response times for address, city, and ZIP suggestions.
  • Strong geocoding — forward geocoding returns accuracy classification (rooftop / interpolated / centroid / approximate) plus a confidence score, so your AI knows when to trust the result.
  • IPv4 + IPv6 geolocation — country, region, city, coordinates, timezone, postal code.
  • Free tier with no credit card — get a key in under a minute at sthan.io/dashboard.

Tools

ToolWhat it does
sthan_verify_addressVerify a US address is real and deliverable. Returns standardized format, ZIP+4, DPV, residential/commercial.
sthan_parse_addressParse freeform US address text into structured components (street number, name, type, direction, unit, city, state, zip).
sthan_autocomplete_addressSuggest complete US addresses from partial input. Sub-100ms.
sthan_autocomplete_citySuggest US cities from partial input, with state code.
sthan_autocomplete_zipcodeSuggest US ZIP codes from partial input.
sthan_geocodeUS address → latitude/longitude with accuracy + confidence.
sthan_reverse_geocodeLatitude/longitude → nearest US street address with distance in meters.
sthan_ip_geolocationIPv4 or IPv6 → country, region, city, coordinates, timezone, postal code.

Quick start

1. Get a free API key

Sign up at sthan.io and create a key from the dashboard. No credit card.

2. Add to your MCP client

Claude Desktop / Claude Code (~/.claude/mcp.json or project .claude/mcp.json):

{
  "mcpServers": {
    "sthan": {
      "command": "npx",
      "args": ["-y", "@sthan/mcp-server"],
      "env": { "STHAN_API_KEY": "sthan_test_your_key_here" }
    }
  }
}

Cursor (.cursor/mcp.json):

{
  "mcpServers": {
    "sthan": {
      "command": "npx",
      "args": ["-y", "@sthan/mcp-server"],
      "env": { "STHAN_API_KEY": "sthan_test_your_key_here" }
    }
  }
}

VS Code (settings.json):

{
  "mcp.servers": {
    "sthan": {
      "command": "npx",
      "args": ["-y", "@sthan/mcp-server"],
      "env": { "STHAN_API_KEY": "sthan_test_your_key_here" }
    }
  }
}

Example prompts

Once configured, just ask your AI assistant naturally:

  • "Is 123 Main St, New York, NY 10001 a real, deliverable address?"
  • "Parse this address: apt 2b 500 broadway new york ny"
  • "What are the coordinates of 1600 Pennsylvania Ave, Washington DC?"
  • "What's the nearest address to 40.7128, -74.0060?"
  • "Where is IP 8.8.8.8 located?"
  • "Suggest US cities starting with 'San Fr'."

Environment variables

VariableRequiredDescription
STHAN_API_KEYYesYour sthan.io API key (sthan_test_* for development, sthan_live_* for production)
STHAN_API_URLNoOverride base URL (default: https://api.sthan.io)

Packages

This monorepo publishes two packages:

PackagenpmPurpose
@sthan/mcp-servernpmThe MCP server itself — the binary that your client launches
@sthan/corenpmTypeScript SDK for direct programmatic use of sthan.io APIs

Development

git clone https://github.com/sthan-io/mcp-server.git
cd mcp-server
npm install
npm run build --workspaces

Then run the server with STHAN_API_KEY=sthan_test_... node packages/mcp-server/dist/index.js.

Links

License

MIT — see LICENSE.

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