Marker MCP Server

Marker Clusterer for React.js Google Maps API

Local serverstdioTypeScript

What is the Marker MCP server?

Connect Marker to Claude, Cursor or any other MCP client and it stops being a tab you switch to. Marker Clusterer for React.js Google Maps API. The marker mcp server is what makes that connection.

What the server does

For open-source use, please see our GitHub repository for community-supported versions.

@react-google-maps/api provides declarative React components for the Google Maps JavaScript API. Build interactive maps with markers, overlays, directions, and more using familiar React patterns.

  • Hooks-based API — - useJsApiLoader, useGoogleMap, and more
  • Full TypeScript support — - Complete type definitions included
  • React 19 compatible — - Works with the latest React features
  • Tree-shakeable — - Only bundle what you use (~12kb gzipped)
  • SSR friendly — - Works with Next.js, Remix, and other frameworks

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Features — The Features tool exposed by this server
  • Requirements — The Requirements tool exposed by this server

Credentials and setup notes

Configuration is passed through the environment: YOUR_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Installation

Installation goes through your MCP client rather than a global install: point it at @react-google-maps/api on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.

Where it fits

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Marker's toolset — Features, Requirements — is a fair guide to whether it matches your workflow. It is maintained by justfly1984; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Marker's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
FeaturesThe Features tool exposed by this server.
RequirementsThe Requirements tool exposed by this server.

How to install the Marker MCP server

{
  "mcpServers": {
    "marker": {
      "command": "npx",
      "args": ["-y", "@react-google-maps/api"],
      "env": {
        "YOUR_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
YOUR_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use Marker to Features.
  • Use Marker to Requirements.

Frequently asked questions

It connects Marker to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (Features, Requirements) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Marker directly.