`md_dmv_ev_adoption`

Pack: md-dmv · Endpoint: https://gateway.pipeworx.io/md-dmv/mcp

Measure electric-vehicle adoption in Maryland from Maryland MVA registration counts: how many battery-electric and plug-in hybrid vehicles are registered in a county or a ZIP code each month, split by fuel category, with a statewide Maryland total for context. Answers “how many EVs are registered in Montgomery County Maryland”, “EV registrations in ZIP 20852”, “which Maryland county has the most electric vehicles”, “which Maryland ZIP codes have the most EVs”, and EV growth over time via the month argument (monthly since 2020). Pass zip or group_by=“zip” for the ZIP-level file, otherwise results come back by county. For Maryland’s whole registered fleet across every fuel type use md_dmv_vehicle_registrations.

Parameters

Name	Type	Required	Description
`county`	string	no	Maryland county or Baltimore City, e.g. “Montgomery”, “Prince George’s”. Apostrophes are optional. Results are flagged in_maryland because this file also carries out-of-state counties of residence.
`zip`	string	no	Five-digit ZIP code, e.g. “20852”. Supplying this reads the ZIP-level file instead of the county file.
`month`	string	no	Month as YYYY/MM, e.g. “2026/06”. Defaults to the most recent month Maryland has published. The series starts at 2020/07.
`group_by`	string	no	Breakdown dimension: “county” (default) or “zip”. Passing `zip` implies group_by=“zip”.
`limit`	number,string	no	Max counties or ZIP codes to return (default 30, max 500).

Example call

Arguments

{
  "county": "Montgomery",
  "month": "2026/06"
}

curl

curl -X POST https://gateway.pipeworx.io/md-dmv/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"md_dmv_ev_adoption","arguments":{"county":"Montgomery","month":"2026/06"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('md_dmv_ev_adoption', {
  "county": "Montgomery",
  "month": "2026/06"
});

More examples

{
  "zip": "20852",
  "month": "2026/06"
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "md-dmv": {
      "url": "https://gateway.pipeworx.io/md-dmv/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

md_dmv_ev_adoption