@googlemaps/code-assist-mcp
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Google Maps Platform Code Assist MCP (Model Context Protocol) service
Google Maps Platform Code Assist ToolkitAlpha version
The Google Maps Platform Code Assist toolkit is a Model Context Protocol (MCP) server that enhances the responses from large language models (LLMs) used for developing applications with the Google Maps Platform by grounding the responses in the official, up-to-date documentation and code samples.
Since the MCP server accesses the content when the model is prompted, the LLM's context regarding Google Maps Platform does not have to be limited to the available data at the model's training date.
Google Maps Platform resources that the MCP server can access include:
🪄 Make your favorite AI assistant or IDE a Google Maps Platform expert. With Code Assist, AI Agents like Gemini CLI, Claude Code, and Cursor can generate code and answer developer questions grounded in up-to-date, official Google Maps Platform documentation and code samples -- directly in your dev workflow.
🚀 Whether you are making precision AI-Assisted code changes or vibecoding a new app prototype - Code Assist can help you accomplish your task faster and easier.
Below is an example MCP Client response to a user's question with Code Assist MCP installed:
[!NOTE] This is the repository for an MCP server that provides access to Google Maps Platform documentation via a RAG service. It is not a Google Maps Platform Core Service.
The MCP server exposes the following tools for AI clients:
retrieve-instructions: A helper tool used by the client to get crucial system instructions on how to best reason about user intent and formulate effective calls to the retrieve-google-maps-platform-docs tool.retrieve-google-maps-platform-docs: The primary tool. It takes a natural language query and submits it to a hosted Retrieval Augmented Generation (RAG) engine. The RAG engine searches fresh versions of official Google Maps Platform documentation, tutorials, and code samples, returning relevant context to the AI to generate an accurate response.This server supports two standard MCP communication protocols:
stdio: This is the default transport used when a client invokes the server via a command. It communicates over the standard input/output streams, making it ideal for local command-line execution.Streamable HTTP: The server exposes a /mcp endpoint that accepts POST requests. This is used by clients that connect via a url and is the standard for remote server connections. Our implementation supports streaming for real-time, interactive responses.You can run the Code Assist MCP server either on your local development machine or remotely on Google Cloud Run.
In order to use the Google Maps Platform Code Assist toolkit, you need an environment with Node.js (LTS version recommended) and npm installed in order to clone and run the server, as well as an MCP client to access the server.
stdio transport (Recommended)Run the server on your local machine and connect clients using stdio protocol for use with AI-assisted IDEs (like VS Code, Android Studio, Cursor) or desktop AI applications (like Gemini CLI). This is the simplest and most common setup.
Add the server to your preferred AI client's MCP configuration file. Find your client below for specific, verified instructions.
Gemini Code Assist & Gemini CLI
gemini mcp add google-maps-platform-code-assist npx -y @googlemaps/code-assist-mcp@latest
gemini mcp list.~/.gemini/settings.json file.{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
}
}
}
claude mcp add google-maps-platform-code-assist -- npx -y @googlemaps/code-assist@latest
claude mcp list.cmd /c wrapper for npx commands to work correctly.claude mcp add google-maps-platform-code-assist -- cmd /c "npx -y @googlemaps/code-assist-mcp@latest"
~/.claude.json"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": [
"-y", "@googlemaps/code-assist-mc@latest"
]
}
}
.cursor-settings/mcp.json file.{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
}
}
}
mcp.json file in the .idx folder in your Firebase Studio workspace{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
}
}
}
mcp.json file and place it in the configuration directory of Android Studio. Add the Code Assist server to the list:{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
}
}
}
~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json%APPDATA%/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json~/.config/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.jsoncline_mcp_settings.json:
{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
},
"alwaysAllow": [
"retrieve-instructions",
"retrieve-google-maps-platform-docs"
]
}
}
~/Library/Application Support/Code/User/globalStorage/rooveterinaryinc.roo-cline/settings/mcp_settings.json%APPDATA%\Code\User\globalStorage\rooveterinaryinc.roo-cline\settings\mcp_settings.json~/.config/Code/User/globalStorage/rooveterinaryinc.roo-cline/settings/mcp_settings.jsonmcp_settings.json:
{
"mcpServers": {
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"]
},
"alwaysAllow": [
"retrieve-instructions",
"retrieve-google-maps-platform-docs"
]
}
}
When in Agent mode, Click "Tools" and then in the top header "Configure Tools" then "Install from an NPM package name" (See screenshots below)
Enter pacakge name @googlemaps/code-assist-mcp and ENTER, accepting the install and using the default port 3000, then ENTER one last time to confirm the change
By default, the server runs on port 3000. You can specify a different port using the --port flag or a PORT environment variable. The --port flag takes precedence.
Example: Use port 5000
In your mcp.json:
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest", "--port", "5000"]
}
Or with an environment variable:
"google-maps-platform-code-assist": {
"command": "npx",
"args": ["-y", "@googlemaps/code-assist-mcp@latest"],
"env": {
"PORT": "5000"
}
}
If the specified port is unavailable, the server will automatically find and start on a random available port.
For developers who need to integrate the Google Maps Platform Code Assist MCP server using the Streamable HTTP transport on their local machine, this guide provides setup instructions and testing steps.
Use the local Streamable HTTP transport when:
1. Start the Server
Run the MCP server locally, specifying a port:
npx -y @googlemaps/code-assist-mcp@latest --port 3215
The server will be available at http://localhost:3215/mcp.
2. Configure Your Client
Update your client's MCP configuration to connect to the local server URL.
Note: Check that the type parameter in your MCP configuration is set correctly for your specific client. For example, Roo Code uses "type": "streamable-http", while Cline uses "type": "streamableHttp".
Roo Code (VS Code Extension)
Add to mcp_settings.json:
{
"mcpServers": {
"google-maps-platform-code-assist": {
"type": "streamable-http",
"url": "http://localhost:3215/mcp",
"alwaysAllow": [
"retrieve-instructions",
"retrieve-google-maps-platform-docs"
]
}
}
}
Cline (VS Code Extension)
Add to cline_mcp_settings.json:
{
"mcpServers": {
"google-maps-platform-code-assist": {
"type": "streamableHttp",
"url": "http://localhost:3215/mcp",
"alwaysAllow": [
"retrieve-instructions",
"retrieve-google-maps-platform-docs"
]
}
}
}
Verify your server is working correctly by sending an initialize request:
# Test server initialization
curl -X POST http://localhost:3215/mcp \
-H "Content-Type: application/json" \
-H "Accept: application/json, text/event-stream" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "initialize",
"params": {
"protocolVersion": "2025-03-26",
"capabilities": {},
"clientInfo": {"name": "test-client", "version": "1.0.0"}
}
}'
Expected Response: The server will respond with an SSE event containing its capabilities.
event: message
data: {"jsonrpc":"2.0","id":1,"result":{"protocolVersion":"2025-03-26","capabilities":{"tools":{},"logging":{},"resources":{}},"serverInfo":{"name":"code-assist-mcp","version":"0.1.3"}}}
Run the server on Google Cloud Run and connect to it from your local machine. This is useful if your client requires a remotely-hosted, streamable HTTP endpoint.
[!WARNING] These instructions secure the server so only you can access it with the proper IAM roles for your applications, MCP Clients, or Agents.
1. Prerequisites
Install the Google Cloud SDK and authenticate your account:
gcloud auth login
gcloud config set project YOUR_PROJECT_ID
2. Deploy to Cloud Run
This command deploys the server from this repository's source code and ensures it is not publicly accessible.
gcloud run deploy google-maps-code-assist-mcp --source . --no-allow-unauthenticated
When prompted, select a region (e.g., us-central1).
3. Connect Securely
Run a Cloud Run proxy on your local machine. This creates a secure tunnel from a local port to your remote server, authenticated with your gcloud identity.
gcloud run services proxy google-maps-code-assist-mcp --port=8999 --region=YOUR_REGION
Now, http://localhost:8999 on your machine securely connects to your Cloud Run service.
4. Configure Your Client
Update your client's MCP configuration to point to the local proxy.
Connect using the url attribute over Streamable HTTP:
"google-maps-platform-code-assist": {
"url": "http://localhost:8999/mcp",
"type": //Either "streamableHttp" or "streamable-http", depending on your MCP client
}
5. Connect GCP Services (Alternative to Local Proxy)
To connect another GCP service to the remotely deployed Cloud Run MCP server, such as an Agent Development Kit (ADK) agent on GCP Cloud Run or Vertex AI Agent Engine, you can connect the client directly to the remote MCP service over Streamable HTTP using the following IAM roles:
# Grant Cloud Run Invoker role to the service account
gcloud run services add-iam-policy-binding google-maps-code-assist-mcp \
--member="serviceAccount:YOUR-SERVICE-ACCOUNT@YOUR-PROJECT.iam.gserviceaccount.com" \
--role="roles/run.invoker" \
--region=YOUR_REGION
Now your GCP hosted app or agent can connect directly to the remotely hosted MCP server URL over Streamable HTTP.
6. Health Check Endpoint
This server implementation includes a standard /health endpoint. This is a best practice for services deployed on platforms like Cloud Run, which use it to check the server's operational status.
/health Endpoint: A simple GET request to this endpoint (e.g., https://your-service-url/health) will return a 200 OK status with a JSON payload containing the server status, number of active sessions, and a timestamp if the server is running. This is used for infrastructure-level health checks.ping Utility: This is different from the in-protocol ping utility defined by the MCP specification. The ping utility is a JSON-RPC request sent after a session is established to check the liveness of the protocol connection, whereas the /health endpoint checks the liveness of the HTTP server itself.This toolkit provides tools to describe the use of Google Maps Platform services. Use of Google Maps Platform services is subject to the Google Maps Platform Terms of Service, however, if your billing address is in the European Economic Area, the Google Maps Platform EEA Terms of Service will apply to your use of the Services. Functionality varies by region. Learn more.
This toolkit is not a Google Maps Platform Core Service. Therefore, the Google Maps Platform Terms of Service (e.g. Technical Support Services, Service Level Agreements, and Deprecation Policy) do not apply to the code in this repository or the RAG service called by it.
This toolkit is offered via an open source license. It is not governed by the Google Maps Platform Support (Technical Support Services Guidelines, the SLA, or the Deprecation Policy). However, any Google Maps Platform services used by the library remain subject to the Google Maps Platform Terms of Service.
If you find a bug, or have a feature request, please file an issue on GitHub. If you would like to get answers to technical questions from other Google Maps Platform developers, ask through one of our developer community channels. If you'd like to contribute, please check the contributing guide.
You can also discuss this toolkit on our Discord server.
FAQs
Google Maps Platform Code Assist MCP (Model Context Protocol) service
The npm package @googlemaps/code-assist-mcp receives a total of 80 weekly downloads. As such, @googlemaps/code-assist-mcp popularity was classified as not popular.
We found that @googlemaps/code-assist-mcp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
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