Mcp Server

Connects Claude to sthan.io's US postal APIs. You get eight tools: verify addresses against USPS data with DPV and ZIP+4, parse freeform text into structured components, autocomplete addresses/cities/ZIPs with sub-100ms response times, forward and reverse geocoding with accuracy scores, and IPv4/IPv6 geolocation. The verify endpoint is the standout here, returning delivery point validation and residential/commercial flags from real postal records instead of guessing. Runs via stdio, needs a free API key from sthan.io (no credit card), and works with Claude Desktop, Cursor, VS Code, or any MCP client. Useful when you're building workflows that need to validate shipping addresses, enrich location data, or let Claude handle geospatial queries without hallucinating coordinates.