"Using PostgreSQL with n8n Workflow Automation" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
ai-mail.sh gives your AI agent its own email address for $0.05, paid with x402 (USDC on Base), with no signup. Verification codes and links come back already extracted, and wait holds the request until mail arrives. Addresses are never reassigned: come back months later, pay again, same address. Receive-only, no tracking, and you delete it, it's gone. Works over HTTP or MCP.
Free hosted MCP server that connects ChatGPT and Claude (claude.ai, Claude Code) to multiple Gmail, Google Calendar, Google Drive (read-only) and Google Contacts accounts, Slack workspaces and Notion through one connection URL. Search, read and act across every connected account at once, with a memory shared across your AI assistants. OAuth sign-in. Outlook / Microsoft 365 are not supported.
Email security and AI discoverability scores for any domain, with the exact record or tag to fix.
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.
Give your AI agents dedicated inboxes on your own {userDomain}.epst.cc domain. Read, search, draft, send, and reply to emails through MCP with a single API key.
Verify email addresses in real time and find business email addresses with live mailbox checks.
Send WhatsApp, SMS, email or voice to a business with the compliance gate enforced.
DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
Audit B2B SaaS lifecycle emails with the 7-point Decision Friction Model: score, patterns, fixes.
Register, renew, transfer, and manage domains, DNS, VPS, and email with 105 tools. By OSIR.
Find B2B leads with verified work emails, find and verify emails, and run cold email outreach.
Send email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.
Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.
Give AI agents structural conversion intelligence for SaaS lifecycle messaging. Scores any email against a proprietary 7-point Decision Friction Model and returns a diagnosis with recommended fixes.
AI-powered email outreach platform — manage contacts, campaigns, sequences, and send follow-ups with deliverability tracking
Transactional e-mail and permission-based campaigns, multi-tenant, with a full audit trail.
PDF, photo, email, and file comparison evidence checks with plain-language reports.
AI-powered email outreach platform — send campaigns with deliverability tracking.
AgentiSend is a transactional email API: send through verified domains with a message log, budgets, a preflight and refusals that name the fix; built so AI agents can send on your behalf. The hosted MCP server at https://api.agentisend.com/mcp exposes 82 tools (44 on tools/list; the rest via list_more_tools). A send is one message or a batch of up to 500 items with per-item results. preflight_email runs every gate a real send runs, sends nothing, and costs nothing. Every 4xx returns code, message, and fix. There is no tool for unsolicited mail. Auth is a bearer API key or OAuth 2.1 with dynamic client registration. Starter prompts: "Send this receipt to the customer." "Preflight this send and tell me what would stop it." "What can I spend today?"
Shipmail MCP server for AI agent custom-domain email inboxes with REST API and webhooks.
