"Creating an Automation System Using n8n" matching MCP connectors:

AIsa Agent MailAOAuth

one.aisa

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.

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.

Give your AI agent an identity it owns: email inbox, US phone number, SMS, voice, and a vault.

Email inboxes for AI agents: create an address, send, receive via webhook, and full-text search.

Ask Universal Agents what we sell (Interplay), pricing, and FAQs; draft an intro email.

Disposable email for agents: create an inbox, wait for the message, read the code. No key needed.

Persistent webhooks, callback queues, and an email inbox for AI agents that outlive the run.

Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.

Run cold email outbound from an AI agent: campaigns, leads, replies, sender accounts, autopilot.

An AI agent that runs your online business: products, orders, customers, email, and sites.

Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links. 34 tools; bearer auth with an mfx_ API key (free tier).

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.

MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/

Dead Simple EmailAOAuth

email.deadsimple

Give an agent its own inbox: send, receive, and pull signup codes from real email.

Your IMAP mailbox as an MCP server: read, search and (if you allow it) organize mail. Open source.

Disposable email inboxes for AI agents: create an address, wait for the OTP or verify link.

Manage email campaigns, contacts and deliverability analytics in RuSender from an AI assistant.

Check whether an email address can receive mail — one address or a list — without sending to it.

Give an AI agent its own email address: send, reply, read, and wait for mail.

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.