"An overview of OSINT (Open Source Intelligence)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
7 outreach, sequencing, call-coaching and CRM-hygiene skill products. 6 of 8 free.
Official remote MCP server of MailSenpai, the EU-hosted email marketing platform. Connect Claude, ChatGPT, Cursor or another MCP client to your account and ask in chat to create lists, find subscribers, prepare templates, create draft campaigns and read campaign stats. OAuth 2.1 with PKCE, no API keys. Sends and deletions need explicit confirmation; every call is logged.
B2B outbound sales MCP server connecting AI agents to LinkedIn outreach, cold email sequencing, and prospect intelligence. Enables ChatGPT, Claude, Cursor, and custom agents to research leads, trigger personalized campaigns, manage unified inbox replies, and track pipeline metrics through 30 native tools.
Let AI agents check whether an email is a real person's work address or a personal, disposable, relay or shared team inbox (info@, sales@, support@), and see which stack the company runs: Google Workspace or Microsoft 365 with tenant ID and identity provider. Every verdict comes with reason codes and an allow / review / block recommendation. Docs: https://isbusinessemail.com/docs/mcp
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.
Mailchimp engagement intelligence for AI agents: campaign analytics, audience insights, and automated BigQuery data pipelines.
Checks if an email/domain is disposable (temp-mail). x402-metered per call.
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.
Paid email, DNS, mail-security and RDAP intelligence for agents over x402.
MCP tools for agents: web research, content extraction, email, DNS, and blockchain intelligence.
Mailchimp engagement intelligence for AI agents: campaign analytics and audience insights.
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.
Run cold email outbound from an AI agent: campaigns, leads, replies, sender accounts, autopilot.
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.
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. Modern email for your business, with an API for your agents.
- CosVoiceOAuthcom.cosvoice
A real phone number and email for your AI Chief of Staff. Calls, bookings by phone, summaries.
