Typed structured messaging for AI agents via AIPost.email with Ed25519 signing.
Email tools for any IMAP/SMTP provider: list, read, search, send, and manage messages.
Post and schedule across 9 social platforms from Claude, Cursor, or ChatGPT.
MCP-native ad server. Monetize AI chatbots and agents with conversational ads.
AI-powered email outreach platform — send campaigns with deliverability tracking.
B2B lead search and email verification MCP server.
Lean Gmail MCP server with auto authentication support.
MCP server for VRChat friends, worlds, groups, events, notifications, and VRCX history.
Convert .eml email exports to Markdown with YAML front matter.
Generate hyper-personalized cold email sequences via AI.
Generate hyper-personalized cold email sequences via MachFive API.
Company firmographics from domain: name, socials, tech stack, emails, phone, address.
Audit email domain deliverability: SPF, DKIM, DMARC, MX. Score 0-100. x402.
Find email addresses from name and company domain. x402 paid.
Send emails programmatically via Resend. Text and HTML. x402 micropayment.
Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.
Person lookup from email: name, title, company, social profiles. x402.
Validate SMS-capable phone numbers — mobile vs landline, E.164 format. x402 micropayment.
Secure MCP access to Onyx search, chat, projects, and administration.
Search listings, message posters, and create draft posts on Capmus, the university marketplace.
Search listings, message posters, and create drafts on SUpost, the marketplace for Stanford.
Give your MCP clients the ability to speak by running local voice models using Chatterbox TTS.
Trigger events, query channels, and manage realtime messaging on Pusher Channels.
Connect your AI assistant to email — read, search, send, and organise via IMAP/SMTP.
About Communication MCP servers
Communication servers put an agent inside the channels your team already uses. They expose tools to search message history, post to channels or threads, send and draft email, manage contacts and react to incoming messages, covering Slack, Discord, Microsoft Teams, Gmail and IMAP mailboxes, Twilio-style SMS and voice, and chat platforms such as Telegram and WhatsApp.
Sending on someone's behalf is a high-trust action, so look for servers that separate read tools from write tools, support draft-before-send flows and scope access to specific channels or mailboxes. OAuth-based servers are easier to revoke than shared bot tokens. For inbound automation, pair a communication server with a workflow or webhook server.