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Use Ziplore: US ZIP Code API (county, time zone, demographics, radius) MCP with Cline

Ziplore: US ZIP to county, FIPS, time zone, Census demographics; radius and city ZIPs. Free, no key.

Remote MCP server (Streamable HTTP), nothing to install. Free: 200 free calls/day, no key · Paid: Starter $19/month; Pro $39/month; Starter yearly $190/year; Pro yearly $390/year

Set it up

Click the MCP Servers icon in Cline's toolbar, open Configure and click Configure MCP Servers.
Add the server under "mcpServers" with "type": "streamableHttp" and save.
Check that the server is enabled and lists its tools.
Every tool here is read-only, so you can add tool names to "autoApprove" if you want Cline to run them without asking.

Add to cline_mcp_settings.json::

{
  "mcpServers": {
    "ziplore": {
      "type": "streamableHttp",
      "url": "https://ziplore.cybermaxtools.com/mcp?via=use-with-cline",
      "disabled": false,
      "autoApprove": []
    }
  }
}

With a paid key:

{
  "mcpServers": {
    "ziplore": {
      "type": "streamableHttp",
      "url": "https://ziplore.cybermaxtools.com/mcp?via=use-with-cline",
      "headers": {
        "x-api-key": "YOUR_KEY"
      },
      "disabled": false,
      "autoApprove": []
    }
  }
}

The settings file is local to your machine; do not paste it into a shared repository with the key in it.

Where it goes:

cline_mcp_settings.json: in the IDE, click the MCP Servers icon › Configure › Configure MCP Servers
CLI: ~/.cline/data/settings/cline_mcp_settings.json

Config format checked 2026-10-09 against Cline's MCP documentation.

Tools you get

Endpoint checked 2026-10-09: https://ziplore.cybermaxtools.com/mcp answered an MCP initialize (protocol 2025-06-18) and tools/list with 5 tools, all marked read-only. No key was used and no tool was called.

Tool	What it does	Required inputs
`zip_lookup`	City, state, county and FIPS, coordinates, time zone with UTC offset, and Census demographics (population, income, home value, rent) for up to 10 US ZIP codes. Accepts ZIP+4, addresses and ZIPs missing a leading zero.	`zips`
`zips_in_radius`	Every US ZIP within N miles (max 25) of a ZIP or a lat/lon point, closest first, with distance in miles.	`miles`
`city_zips`	All ZIP codes of a US city, largest population first.	`city`
`nearest_zip`	Reverse geocode a latitude/longitude to the nearest US ZIP code(s), with distance.	`lat`, `lon`
`zip_distance`	Great-circle distance in miles and km between two US ZIP codes.	`from`, `to`

Test the endpoint from a terminal

This lists the tools without a key and without calling any of them:

curl -s https://ziplore.cybermaxtools.com/mcp \
  -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

If it does not work

The field is "type" (not "transportType") and the approval list is "autoApprove".
Set "type": "streamableHttp" explicitly; "sse" is the legacy transport.
The free tier has a daily limit (see the pricing line above); a paid key raises it.

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