What should I do if the authentication browser window doesn't open?

If the browser doesn't open automatically, look at your terminal output for an authentication URL, which you can copy and paste manually into your browser.

How do I resolve a Port 3000 conflict?

You can resolve this by killing the process currently using port 3000 using the command 'lsof -ti:3000 | xargs kill -9' and then restarting the authentication process.

What prerequisites are needed for this skill?

You need a Google Cloud Platform project with the Gmail, Calendar, and People APIs enabled, and a Desktop-type OAuth 2.0 Client ID JSON file placed in the correct local directories.

Do I need to re-authenticate every time I use Claude?

No, tokens usually auto-refresh. You only need to re-run this skill after a fresh install, a development environment rebuild, or if tokens expire due to long inactivity.

Google Workspace MCP Authentication

Name: Google Workspace MCP Authentication
Author: reggiechan74

byreggiechan74

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Productivity & Workflow

Authenticates Gmail and Google Calendar MCP servers to enable secure access to Google Workspace tools within Claude Code.

This skill provides a structured workflow for authenticating Gmail and Google Calendar Model Context Protocol (MCP) servers using OAuth 2.0. It guides users through verifying Google Cloud Platform credentials, setting up necessary configuration directories, and executing the OAuth consent flow. This is a critical utility for developers setting up Google Workspace integrations for the first time, restoring connections after environment rebuilds, or refreshing expired access tokens to ensure Claude can interact seamlessly with productivity data.

Key Features

01Unified verification process for dual-server connectivity

02Troubleshooting for port 3000 conflicts and browser issues

035 GitHub stars

04Automated OAuth 2.0 flow for Gmail and Calendar servers

05Support for Desktop-type OAuth Client ID configurations

06Pre-authentication directory and credential validation

Use Cases

01Initial setup of Google Workspace integrations in Claude Code

02Refreshing authentication tokens when API access fails

03Restoring MCP connectivity after a Codespace or container rebuild

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add reggiechan74/cc-plugins authenticate

For use in Claude.ai and ChatGPT

Download Skill