Communication MCP servers

Coldrig cold-email infrastructure run by your agent: buy domains, provision mailboxes, warm up, run sequences and handle replies.

Direct messaging for AI agents over the A2A protocol: inbox, friend list, group threads and per-friend memory for real-time chats with other people's agents.

Events, tasks and journal entries on any CalDAV server (Radicale, Nextcloud, Fastmail, iCloud), with a calendar allowlist and approval for series changes.

Contacts, groups and photos on any CardDAV server (Radicale, Baikal, Nextcloud, Fastmail, iCloud), with ETag-guarded writes and an address book allowlist.

Give AI agents a phone layer for consent-based calls, transcripts, summaries, and outcomes.

Pair two AI coding agents on different machines over an end-to-end encrypted relay to exchange files and messages, with human consent before any file write.

Send, receive, monitor and reply to email from AI agents with threaded inbox context.

ESPN MCP — keyless multi-sport live scores, teams, and news via ESPN's public site API.

Email verification: mailbox existence checks, including catch-all, accept-all and SEG-protected addresses (Proofpoint, Mimecast, Barracuda), single or bulk.

Google Maps MCP Pack — geocoding, places, directions, distance matrix, elevation.

Official CLI and MCP server for the InsightSocial API: 300+ social data endpoints across 25 platforms (Instagram, TikTok, LinkedIn, Facebook, YouTube, X, Reddit, Bluesky, Telegram, Douyin, Weibo and more) behind one key.

AI agent toolkit for WhatsApp, Instagram, and Messenger automation with zero-key MCP pairing, Barq AI, inbox tools, campaigns, templates, and developer diagnostics.

Discord REST API: list channels, categories, roles and permission overwrites, with channel, role, guild and message management tools disabled by default.

Private, EU-hosted email for AI agents over JMAP: read, search, reply in-thread, organize and send, with sending pinned to the signed-in mailbox.

Read-only stats for public Telegram groups tracked by the Limzo anti-spam bot: leaderboards, activity trends, member levels and moderation summaries.

Email inboxes for agents that return one-time codes as a field. Addresses are permanent; messages expire after a configurable retention window.

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

Gmail mailbox control via the live Gmail API: search, read, label, archive, trash, download attachments and snooze threads until a date.

Convert Markdown to WhatsApp formatting so agent output shows bold, lists and quotes instead of raw asterisks, with tables rendered as monospace boxes.

Meser 10, the Israeli email and SMS marketing platform: tools generated from its live API, permission tiers starting read-only and a per-send recipient cap.

MCP server for NameCatcher — score and value collectible Telegram usernames (namability 0-100, fair price, thesis). Free public API, no key.

All-in-one MCP server: GitHub, local Git, Slack, web fetch, persistent memory, and filesystem tools in a single config entry. Agent Mode is opt-in.

Outlook mail via Microsoft Graph: read, search, draft, send and organize email. Read-only by default, with audit logs and confirmation before send or delete.

Restructure large Outlook/Hotmail mailboxes: move folder subtrees, bulk move and mark-read with dry-run previews, and manage inbox rules. Cannot send mail.

Post to TikTok, Instagram, YouTube, X, LinkedIn, Bluesky, Telegram, Mastodon and Discord through a single tool.

Check posts against real character limits before publishing on X, Bluesky, LinkedIn, Threads, Mastodon and Discord, including URL and emoji weighting.

Postscript MCP Pack — SMS marketing for Shopify.

Email system for agents: message search, importance/urgency triage, commitment follow-through and reviewable drafts, keeping financial actions human-only.

Local stdio MCP server for Ray, the notification delivery API (email, push, Slack, Discord, Telegram, webhooks). Bridges to Ray's hosted MCP endpoint.

Send, reply to and forward mail over SMTP, restricted to a recipient allowlist, with each message approved by a person before sending.

Drop-in read-only replicas of GitHub, Jira, Slack and 18 more, preloaded with one fake company.

Security-focused SendGrid email sending with recipient/domain allowlists, send caps, review mode, an audit log and no silent BCC.

MCP server for SMS.RU — SMS sending, delivery status, balance (Russia)

MCP servers that give Claude access to your personal Telegram and Slack accounts

TheSportsDB MCP — sports catalog (teams, players, events)

Twilio MCP Pack — send SMS, list messages, make calls via Twilio REST API.

Send transactional email, authenticate sending domains, track delivery and diagnose deliverability, with scoped API keys and dry-run mode.

WhatsApp MCP Server: Human-in-the-loop for AI agents via WhatsApp for confirmations, notifications, and interactive questions.

MCP server for sending WhatsApp messages from Claude and other MCP clients. No Meta Business approval, no WhatsApp Business account — scan a QR code and send.

Disposable email inboxes for AI agents with automatic OTP and magic-link extraction, for testing signups and auth flows.

iCloud Mail over IMAP and SMTP: search all folders, rebuild threads, save attachments, draft replies and file messages by rule, without marking mail as read.

Self-hosted email for multiple Gmail, iCloud, Fastmail or IMAP/SMTP accounts: search, read, threaded replies, drafts, allowlisted sending and attachments.

Send push notifications through ntfy, read back sent messages, update a notification in place while a job runs, and administer users and topic access.

Email (IMAP/SMTP), Sieve mail filters, CalDAV calendars, CardDAV contacts and free/busy scheduling for Open-Xchange and standards-based mail platforms.

Free 17-0 game. Spin all-time NFL teams, draft 7 legends, simulate a 17-game regular season

Read-only search over Sendchamp documentation for SMS, OTP verification and Africa-specific routing.

Ephemeral rendezvous for agents: expiring threads with a secret read key and public write address, plus an open board where agents find each other.

Approve before agents email, Slack, CRM, or deploy. $49/mo Solana USDC. Keep keys.