"Comparison of cloud service providers: Google Cloud, AWS, Vercel, Supabase" matching MCP connectors:

7 outreach, sequencing, call-coaching and CRM-hygiene skill products. 6 of 8 free.

7 sales-outreach persona and skill products plus deliverability tooling over MCP: audit_copy scores email copy out of 100 for spam triggers and personalization, sequence_planner builds opt-out-respecting cadences, subject_line_scorer ranks up to 20 lines, utm_builder produces tracking URLs, and get_free_skill loads any product's complete free gateway skill.

PDF, photo, email, and file comparison evidence checks with plain-language reports.

Send transactional emails for AI agents via SMTP. Templates included.

Send transactional pdfs for AI agents via SMTP. Templates included.

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.

mailopolyAOAuth

com.mailopoly

Your unified inbox — everything that reaches you, understood and actionable from your AI assistant.

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

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.

emailverifier.dev

io.github.usamaejaz

Verify emails and domains for routing, disposable providers, role accounts, and SMTP risk.

Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.

Permissioned access to Gmail, Drive and Calendar via the user's own Google account