"Latest tool requiring Google login" matching MCP connectors:

AI-powered virtual assistant that connects to Gmail, Outlook, Slack, Salesforce, HubSpot, Google Calendar, DocuSign, QuickBooks, and 20+ other services. Manage your entire professional life through a single Claude conversation — email, calendar, CRM, documents, travel, expenses, and more.

Phone, SMS & email for AI agents — one remote MCP endpoint, OAuth login, zero install.

Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.

Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.

34-tool CRM server — contacts, pipeline, quotes, invoices, scheduling, email, and AI scoring.