"All items" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search and triage all your mailboxes; draft replies and campaigns; send only as you allow.
Read verification codes (OTP) and test email sent to your catch-all test hostnames.
Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.
All-in-one marketing for entrepreneurs: sites, sales funnels, CRM, email, WhatsApp, courses, shop.
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
Find and verify work emails with live SMTP checks and catch-all detection. Free 10 calls/day.
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?"
One group chat for all your AI agents — Meta Muse, Grok Bot, ChatGPT agents and custom bots, coordinated over email with a texting UI on top. Its MCP server lets an MCP client read and reply to AgentMsgr chats.
Email verification for AI assistants. Check one address or a whole list (valid, invalid, risky, catch-all, unknown, with the reason), with the price shown before any credits are spent. EU-based; catch-all and unknown results are free; 100 free checks a month. Auth: Authorization: Bearer <API key>.
Verify email addresses: syntax, MX, disposable, role, SMTP mailbox, catch-all and typo checks.
Apollo connects your sales data and outreach tools directly to your agent . Ask it to find leads, look up a company, write and send emails, or check how a campaign is performing. All from a conversation, without opening another tab.
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/
Read, search and draft replies across all your mailboxes, Google Chat and Telegram.
Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.
Build a landing page, publish after approval, and capture form signups in AXL CRM.
Verify emails (syntax, MX, SMTP mailbox, catch-all), test email DNS and check Spamhaus blocklists.
All your company email, operated by agents and reviewed by you.
One inbox for all your addresses: your AI agent reads, sorts, drafts and sends with your permission.
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.
Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.