Best Alternatives to Kit.com MCP Server

Abnormal Security MCP

Runtime: npx

Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.

Outlook MCP

Runtime: npx

Microsoft Outlook MCP server — 20 tools for email, calendar, contacts, and settings via Graph API.

Nitrosend

Runtime: npx

AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.

SenderKit

Runtime: npx

Build and send email, SMS, and push straight from your AI agent.

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Mailbuttons

Runtime: npx

Governed email for AI agents: sandbox inboxes, server-side policy gate, tamper-evident audit.

Lumail

Runtime: npx

Official Lumail email marketing MCP for campaigns, subscribers, and workflows.

AgentPing

Runtime: npx

Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.

HQBase

Runtime: Remote (SSE)

Connect AI agents to your self-hosted HQBase shared email workspace.

Slack MCP Server

Runtime: npx

MCP server providing Slack workspace data access with message history, threads, DMs, user info, and optional message posting.

Pylos MCP

Runtime: npx

Read-focused, prompt-injection-hardened email MCP server for any IMAP provider

Threadline MCP

Runtime: npx

Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.