INDIVIDUAL MCP TOOL

city_name_rules

How USPS names a ZIP Code, and which of those names may be used on mail.

zip-codes.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://mcp.zip-codes.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for city_name_rules and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.zip-codes]
url = "https://mcp.zip-codes.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "zip-codes": {
      "type": "http",
      "url": "https://mcp.zip-codes.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: zip-codes
Remote MCP URL: https://mcp.zip-codes.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "zip-codes": {
      "url": "https://mcp.zip-codes.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "zip-codes": {
      "type": "http",
      "url": "https://mcp.zip-codes.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "zip-codes",
  "transport": "streamable-http",
  "url": "https://mcp.zip-codes.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

suggest_places — Search for a place by partial name, misspelled name, or partial code — the resolver that turns what a person typed into something the other tools can look up.
zip_lookup — The full record for a postal code — the main location-intelligence tool.
zip_facts — Statistics about US ZIP Codes and Canadian postal codes: how many exist, how they break down by type, delivery point and carrier route totals, per-state tables, and ranked lists such as the ZIP Codes with the most carrier routes.
quick_zip — The fast, small answer for a postal code.
radius_search — Find every US ZIP Code and Canadian postal area within a radius of a centre point, with the distance to each.
about_data — Where this server's data comes from: for each dataset the authority behind it, the edition served where the source publishes editions (TIGER/Line, ACS, ZCTA), how often a new release is taken, and a ready-made citation string.
distance — Distance between two places, in miles and kilometres, plus the compass bearing from the first to the second.
validate_address — Validate and standardise a US street address and return its ZIP+4.