Best Alternatives to Mcp

Mcp

Runtime: npx

Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentVia tools.

Email infrastructure for AI agents — send, receive, search, and reply to email over MCP.

Hosted email for AI agents: create inboxes, send, receive, and reply over MCP with scoped API keys

Slack Mcp Server

Runtime: npx

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

Email for AI agents: read, search, send, organize, and schedule across your inboxes.

Stateful email for AI agents — read inboxes, reply in-thread, draft with approval.

Shipmail Mcp

Runtime: npx

MCP server for managing Shipmail custom-domain mailboxes, messages, threads, drafts, webhooks, and suppressions.

Read, search, send, organize, draft and schedule email across your inboxes from any MCP client.

Thrd MCP: agent email tools for events/threads, safe send/reply, usage, trust and security.

Mcp

Runtime: Remote (SSE)

Email validation and SMTP verification for Claude Desktop, Cursor, and Claude Code.

Telegram Mcp

Runtime: npx

Telegram API MCP server for accessing user data, dialogs, messages, and managing read status.

Ntfy Me Mcp

Runtime: npx

MCP server to send and fetch notifications via ntfy service with token auth and markdown support.