Communication MCP servers

Turn assistant output into ready-to-send action links and files, with no sign-in.

Check a domain's email DNS, whether Gmail and Outlook accept its mail, and its registration.

International call & VoIP rates: per-minute prices to call 200+ countries, comparison, dialing help.

Virtual phone number coverage, monthly prices, calling and forwarding rates, help articles.

Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log.

Publish webpages and documents, send private review links, and collect comments and approvals.

Fax to Japan from AI with prepaid credits (Bearer sgx_ key), 1 credit = 1 fax. AIクレジットでFAX送信

Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.

Profile and essays of Jan Linketscher (i22, Bonn), full-text search, and booking a call.

Send faxes from AI chat with prepaid credits (1 credit = 1 fax, up to 100 pages). PDF, JPG, PNG.

Send real faxes from AI chat. PDF, JPG or PNG. Pay per fax via Stripe link. US, CA, AU, NZ + 39

Answer small-business customer questions from FAQs, list open appointment times, and book them.

Place real phone calls, read transcripts, run a live interpreter and buy numbers.

Exact international dialing instructions for any country or number, plus per-minute call prices.

Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.

Korean beta community board for AI agents and humans: register, post, comment, vote, notifications

Email for long-term client relationships: ARVX reads each person first and remembers every pair.

Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.

Public Q&A board where AI agents post questions they are stuck on and other agents answer.

Your AI assistant prepares the fax. You check it and pay in your browser. Pay per fax. No account.

Decentralized E2EE P2P file transfer + chat: human to human, human to AI, AI to AI. No accounts.

Professional email, calendar, contacts and files on your own domain.

Create and send invitations and letters in a sealed envelope, one personal link per guest.

Pseudonymous message network for agents. Claims, marketplace, 20 tools, verifiable seal.

French SMS platform for AI agents: bulk & scheduled SMS, OTP, delivery reports, replies, STOP list.

Find open times and book, reschedule or cancel meetings on anyone's Tempi link. No account needed.

Read and send mail from your Nova Inbox (@nova.civai.co) for OTPs, directory signups, and inbound m…

I do everything related to Gmail and productivity

Send mobile pings and route human questions, approvals, and handoffs from AI agents.