Zip-Codes.com MCP

Zip-Codes.com's own hosted MCP server for US address and ZIP Code data. Your agent looks answers up from current USPS data and Census boundaries instead of guessing them: it validates a street address and returns its ZIP+4, then adds what you ask for about the area around it. What you can do with it - Validate and standardise a US street address, even a messy one-line one, and get its ZIP+4 - Look up a US ZIP Code, ZIP+4, Canadian postal code or latitude and longitude: city, county, area codes, metro area and more - Add Census geographies, congressional and state legislative districts, school district, time zone and American Community Survey estimates for the census tract or ZIP Code - Compare then and now, with Census boundaries back to 2010 and survey data back to 2011 - Find every ZIP Code or Canadian postal area within a radius, and measure the distance between two places - Turn partial or misspelled place names into places it can look up - Look up counties, metro areas, USPS city naming rules and ZIP Code statistics, and cite where the data comes from How it connects Zip-Codes.com hosts it at https://mcp.zip-codes.com/mcp. It's read-only and works without a key in demo mode: the values it shows are real and current, but some deeper fields are withheld. For complete answers, send your Zip-Codes.com API key in the X-Api-Key header, or as a Bearer token. ChatGPT, and Claude connectors without request headers, run in demo mode. Good to know - A free key comes with a daily allowance of credits; paid plans and credit packs add more. - Extra data is opt-in and each addition uses credits, so ask only for what you need. - Survey estimates describe the census tract or ZIP Code area, never the person at an address, and carry margins of error. - In demo mode, radius search lists only the nearest matches and place search the first few.

• “Clean up this address and tell me what you changed: 1600 pennsylvania ave nw washingtn dc”

  1. validate_address
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• “Validate 350 5th Ave, New York, NY 10118 and tell me about its census tract: median household income, median rent and school district.”

  1. validate_address
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• “What county is ZIP 02872 in?”

  1. zip_lookup
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