The Vertex AI MCP Server provides a comprehensive suite of tools for interacting with Google Cloud's Vertex AI Gemini models, enabling coding assistance and query answering through the Model Context Protocol (MCP).
npm install -g bun
)bun install
.env
file in the project root:# Required configuration
AI_PROVIDER=vertex # Use "vertex" or "gemini"
# If using vertex
GOOGLE_CLOUD_PROJECT=your-project-id
# If using gemini
GEMINI_API_KEY=your-gemini-api-key
# Optional configuration
VERTEX_MODEL_ID=gemini-2.5-pro-exp-03-25
GOOGLE_CLOUD_LOCATION=us-central1
AI_TEMPERATURE=0.0
AI_USE_STREAMING=true
AI_MAX_OUTPUT_TOKENS=65536
AI_MAX_RETRIES=3
AI_RETRY_DELAY_MS=1000
bun run build
Once published to npm, you can run the server directly:
# Using bunx
bunx vertex-ai-mcp-server
# Or install globally
bun install -g vertex-ai-mcp-server
vertex-ai-mcp-server
You can install the server for Claude Desktop automatically:
bunx -y @smithery/cli install @shariqriazz/vertex-ai-mcp-server --client claude
.roo/mcp.json
):{
"mcpServers": {
"vertex-ai-mcp-server": {
"command": "node",
"args": [
"/full/path/to/your/vertex-ai-mcp-server/build/index.js"
],
"env": {
"AI_PROVIDER": "vertex",
"GOOGLE_CLOUD_PROJECT": "YOUR_GCP_PROJECT_ID",
"VERTEX_MODEL_ID": "gemini-2.5-pro-exp-03-25",
"GOOGLE_CLOUD_LOCATION": "us-central1",
"AI_TEMPERATURE": "0.0",
"AI_USE_STREAMING": "true",
"AI_MAX_OUTPUT_TOKENS": "65536",
"AI_MAX_RETRIES": "3",
"AI_RETRY_DELAY_MS": "1000"
},
"disabled": false,
"timeout": 3600
}
}
}
{
"mcpServers": {
"vertex-ai-mcp-server": {
"command": "bunx",
"args": [
"-y",
"vertex-ai-mcp-server"
],
"env": {
"AI_PROVIDER": "vertex",
"GOOGLE_CLOUD_PROJECT": "YOUR_GCP_PROJECT_ID",
"VERTEX_MODEL_ID": "gemini-2.5-pro-exp-03-25",
"GOOGLE_CLOUD_LOCATION": "us-central1",
"AI_TEMPERATURE": "0.0",
"AI_USE_STREAMING": "true",
"AI_MAX_OUTPUT_TOKENS": "65536",
"AI_MAX_RETRIES": "3",
"AI_RETRY_DELAY_MS": "1000"
},
"disabled": false,
"timeout": 3600
}
}
}
To add this MCP server to Claude Code, run this command in your terminal:
claude mcp add-json "vertex-ai-mcp-server" '{"command":"bunx","args":["-y","vertex-ai-mcp-server"],"env":{"AI_PROVIDER":"vertex","GOOGLE_CLOUD_PROJECT":"YOUR_GCP_PROJECT_ID","VERTEX_MODEL_ID":"gemini-2.5-pro-exp-03-25","GOOGLE_CLOUD_LOCATION":"us-central1","AI_TEMPERATURE":"0.0","AI_USE_STREAMING":"true","AI_MAX_OUTPUT_TOKENS":"65536","AI_MAX_RETRIES":"3","AI_RETRY_DELAY_MS":"1000"},"disabled":false,"timeout":3600}'
See the official Claude Code MCP documentation for more details.
There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json
file so that it is available in all of your projects.
If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json
file.
To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".
When you click that button the ~/.cursor/mcp.json
file will be opened and you can add your server like this:
{
"mcpServers": {
"vertex-ai-mcp-server": {
"command": "bunx",
"args": [
"-y",
"vertex-ai-mcp-server"
],
"env": {
"AI_PROVIDER": "vertex",
"GOOGLE_CLOUD_PROJECT": "YOUR_GCP_PROJECT_ID",
"VERTEX_MODEL_ID": "gemini-2.5-pro-exp-03-25",
"GOOGLE_CLOUD_LOCATION": "us-central1",
"AI_TEMPERATURE": "0.0",
"AI_USE_STREAMING": "true",
"AI_MAX_OUTPUT_TOKENS": "65536",
"AI_MAX_RETRIES": "3",
"AI_RETRY_DELAY_MS": "1000"
},
"disabled": false,
"timeout": 3600
}
}
}
To add an MCP server to a project you can create a new .cursor/mcp.json
file or add it to the existing one. This will look exactly the same as the global MCP server example above.
Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.
The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.
You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.
To add this MCP server to Claude Desktop:
1. Find your configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json
~/.config/Claude/claude_desktop_config.json
2. Add this to your configuration file:
{
"mcpServers": {
"vertex-ai-mcp-server": {
"command": "bunx",
"args": [
"-y",
"vertex-ai-mcp-server"
],
"env": {
"AI_PROVIDER": "vertex",
"GOOGLE_CLOUD_PROJECT": "YOUR_GCP_PROJECT_ID",
"VERTEX_MODEL_ID": "gemini-2.5-pro-exp-03-25",
"GOOGLE_CLOUD_LOCATION": "us-central1",
"AI_TEMPERATURE": "0.0",
"AI_USE_STREAMING": "true",
"AI_MAX_OUTPUT_TOKENS": "65536",
"AI_MAX_RETRIES": "3",
"AI_RETRY_DELAY_MS": "1000"
},
"disabled": false,
"timeout": 3600
}
}
}
3. Restart Claude Desktop for the changes to take effect