Google Contacts MCP Server by CData

Name: Google Contacts MCP Server by CData
Author: CDataSoftware

@CDataSoftware

About Google Contacts MCP Server by CData

This project builds a read-only MCP server. For full read, write, update, delete, and action capabilities and a simplified setup, check out our free CData MCP Server for Google Contacts (beta): https://www.cdata.com/download/download.aspx?sku=ECZK-V&type=beta

#google-contacts #mcp-server #cdata

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "{classname_dash}": {
      "command": "PATH\\TO\\java.exe",
      "args": [
        "-jar",
        "PATH\\TO\\CDataMCP-jar-with-dependencies.jar",
        "PATH\\TO\\google-contacts.prp"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Google Contacts MCP Server by CData?

Google Contacts MCP Server by CData is a read-only Model Context Protocol (MCP) server that lets large language models (LLMs) like Claude Desktop query live Google Contacts data. It wraps the CData JDBC Driver for Google Contacts, which exposes contacts as relational SQL models, so users can ask natural language questions without writing SQL.

How to use Google Contacts MCP Server by CData?

Clone the repository, build the JAR with mvn clean install, install and license the CData JDBC Driver for Google Contacts, configure a JDBC connection string using the driver’s utility, create a .prp file with driver path, class, JDBC URL, and prefix, then add the server to Claude Desktop’s claude_desktop_config.json using the Java command pointing to the JAR and .prp file. Once configured, ask the LLM questions about your contacts (e.g., “How many open tickets do I have?”) and it will use the available tools automatically.

Key features of Google Contacts MCP Server by CData

Read-only access to live Google Contacts data via natural language.
Built on the CData JDBC Driver for Google Contacts.
Provides three tools: get_tables, get_columns, run_query.
Supports any LLM client that implements the MCP stdio transport.
Outputs data in CSV format for easy reading.
Requires Java, Maven, and the JDBC driver to be installed and licensed.

Use cases of Google Contacts MCP Server by CData

Let an AI assistant answer questions about contact details without writing SQL.
Enable natural-language queries on Google Contacts from within a desktop AI client.
Quickly retrieve lists of contacts or specific fields for analysis or reporting.

FAQ from Google Contacts MCP Server by CData

What does this server do that the full CData MCP Server doesn’t?

This server is read-only; it only allows querying data. For full create, update, delete, and action capabilities, use the free CData MCP Server for Google Contacts (beta).

What runtime dependencies are required?

Java (to run the JAR), Apache Maven (to build), and the CData JDBC Driver for Google Contacts (must be installed and licensed). The server uses stdio transport, so it must run on the same machine as the client.

Where does the data live and how is authentication handled?

Data remains in Google Contacts; the server queries it live via the JDBC driver. OAuth authentication is handled by the driver (use InitiateOAuth=GETANDREFRESH in the JDBC URL) and requires browser-based authorization during setup.

What tools does the server expose?

Three tools: {prefix}_get_tables, {prefix}_get_columns, and {prefix}_run_query. The prefix is set in the .prp configuration file.

What are the known limitations of this server?

It is read-only—no write, update, or delete operations. It uses stdio transport, so the client must run on the same machine as the server. The JDBC driver requires a license (trial or paid).