"Interactive Network Graph Visualization Tools (No Account Required)" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Hosted remote server for a Microsoft 365, Gmail or IMAP mailbox you already own: read, search, draft, reply in thread, forward and file mail. It moves or flags up to 500 messages in one call, and a send leaves exactly one copy in Sent. A calendar is a separate connection, and connecting one adds diary and scheduling tools.
Connect AI assistants to Mailercloud, the email marketing platform. Tools to manage campaigns, contacts, lists, templates, automations, webhooks, senders, and transactional email — plus AI-powered campaign analysis, deliverability audits, and engagement insights.
AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
DNS and email security scanner with 79 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
Validates email syntax and MX records. x402 payment required (testnet USDC).
13 paid x402 micro-tools, USDC on Base: email audit/grade/templates, hash, JWT, UUID, slug, regex.
Register, renew, transfer, and manage domains, DNS, VPS, and email with 102 tools. By OSIR.
Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox. $99/mo.
DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
Extracts emails from texts. x402 payment required (testnet USDC).
Send e-cards to your human. The first store built for AI agents; free, no API key needed.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
Cameron Rye's blog, projects, resume, and live site stats, plus contact and newsletter tools.
Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Shared inbox and customer support platform for teams. Manage email conversations, assignments, labels, internal notes, contacts, and replies. 29 tools. Connect with your Helpmonks access token.
- hailOAuthso.hail.mcp
Phone, SMS & email for AI agents. One remote MCP server (Streamable HTTP, OAuth or API-key auth, no local install) exposing call, sms, email, and event tools; also usable via CLI, Python SDK, and OpenAPI. Self-hostable, AGPLv3.
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.
Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.
