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Your agent needs a mailbox of its own — to receive, thread, draft and send, with attachments, without borrowing your personal inbox or your company's SMTP. **What you can ask for** • "Create an inbox for this agent and tell me its address." • "Read the new messages in this thread and draft a reply." • "Send this message with the attachment and wait for the response." • "Search this inbox for everything from that domain." • "Show delivery metrics and the events on this inbox." **How to use it** Point any MCP client at https://mcp.aisa.one/mail/mcp and sign in with OAuth — there is no key to create or paste. 49 tools: create and delete inboxes, list and read messages, raw message bodies, attachments, threads, drafts and draft attachments, send and reply, message search, inbox events, metrics, and list entries — reads and writes. **Why this rather than the source** A real inbox an agent owns, rather than an SMTP credential it borrows from a human. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Find the contact elsewhere in the catalogue, then write to them from here — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/sales/mcp finds the person to write to.
Connect AI assistants to Mailercloud, the email marketing platform. Tools to manage campaigns, contacts, lists, templates, automations, webhooks, senders, and transactional email — plus AI-powered campaign analysis, deliverability audits, and engagement insights.
Crevio's MCP server lets an agent run a real online business, not just read from one. It exposes a delegation surface (ask_crevio, start_task, wait_for_run, send_message, resolve_approvals) plus code_search and code_execute for calling the full Crevio REST API - products, customers, orders, email, socials, and sites.
Reach a human at Voix: submit the studio contact form and get a reply by email.
Find and enrich leads, run multi-channel outreach, and manage the sales pipeline.
AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
Send WhatsApp, SMS, email or voice to a business with the compliance gate enforced.
Send e-cards to your human. The first store built for AI agents; free, no API key needed.
Read your AI-written daily briefing and retune the filter behind it: feeds, newsletters, topics.
Fast email validation at the edge: syntax, MX records, disposable-domain detection.
Verify email deliverability & find business emails (single or bulk) via the Verifox API.
PDF, photo, email, and file comparison evidence checks with plain-language reports.
Link building outreach from your agent: review drafts, send the batch, answer publisher replies.
Your AI agent just got a marketing team. SendPulse MCP Server provides full access to the SendPulse marketing platform — email campaigns, CRM, chatbots, SMTP, and online courses. 134 methods across 5 modules.
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.
Hunter.io MCP — wraps the Hunter.io email finder & verification API (hunter.io)
Gives an AI agent its own email address: create mailboxes, send and reply, read the inbox, and block until a reply arrives. Includes a draft lifecycle so a human can approve outbound mail before it sends.
Klaviyo MCP Pack — wraps the Klaviyo API for email marketing
Emailable MCP — wraps the Emailable email verification API (emailable.com)