"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Never-stored live email: read, send and triage Gmail, Outlook / Microsoft 365, or any IMAP mailbox.
7 outreach, sequencing, call-coaching and CRM-hygiene skill products. 6 of 8 free.
Test inboxes for your app's sign-up and login emails: get the code or link, or why none came.
Search and triage all your mailboxes; draft replies and campaigns; send only as you allow.
Email infrastructure for AI agents. Connect your coding agent and it sets up email in your app: create templates, segments, workflows and webhooks, send test emails and read back what was delivered, track events, and create agent inboxes. Sign in with OAuth or use a Volanea API key. Test keys render and log but never deliver. 1,000 emails free every month.
Email inbox for your AI agent: its own addresses, threads, sending, replies and arriving mail.
Read, reply to and send email across every domain you connect to Mailyond, via API key over HTTP.
Business email on your own domain: mailboxes, send and read mail, drafts, aliases and DNS setup.
Free SEO & AI-search (AEO) audits for any site or Shopify store, with emailed weekly score reports.
Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.
AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.
Cold email platform that protects your domains: manage outbound campaigns, automated warmup, lead lists, and inbox replies
Transactional email and agent mailboxes: send, broadcasts, domains, Correio inboxes.
Email infrastructure on Volanea: build templates, segments and workflows, send and check email.
MailBeast.ai is a cold email outreach platform. This server lets AI assistants create and launch campaigns with multi-step A/B sequences, manage leads and sending mailboxes (health, warmup, limits), read and answer replies from a unified inbox, and pull campaign analytics. OAuth 2.1 sign-in with read-only or read-and-write access; an API key header is also supported. Website: https://mailbeast.ai
superbot is your own AI agent: anything you can do on your computer, it can do, fast.
Search and manage connected email, read messages and attachments, create drafts, send messages at the user’s request, and manage rules for new mail. OAuth permissions separate reading, attachments, drafts, sending, and mailbox changes.
Written fix-and-flip term sheets for 1–4 unit investment purchases, by email. Business-purpose only.
Find and qualify B2B leads, manage outreach campaigns, and prepare replies through Funkel AI. Supports LinkedIn, X, and email workflows. Tool discovery is public. Tool calls require OAuth or a personal access token.
Email inbox for your AI assistant; texting coming soon. Agentline NZ, not the US AgentLine.
