Best Alternatives to WhatsApp

Threadline MCP

Runtime: npx

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

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.

Leporis WhatsApp

Runtime: npx

Send and read WhatsApp messages on your Leporis account from AI coding agents, via your own API key.

Slack MCP Server

Runtime: npx

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

Emailmd

Runtime: npx

Convert markdown to email-safe HTML with linting and live preview via an MCP server or local CLI.

Telegram MCP

Runtime: npx

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

Nostr MCP

Runtime: npx

Posts notes to Nostr relays and provides a Lightning zap tool through MCP.

Faithk7 Gmail MCP

Runtime: npx

Manage Gmail messages, threads, labels, drafts, and settings from your workflows. Send and organiz…

Docs MCP

Runtime: npx

Verified

Read-only MCP server providing CometChat docs search and curated implementation bundles for chat, voice, video, and moderation integration.

MCP Telegram

Runtime: npx

Connects AI clients to a personal Telegram account for chat access, message search, media downloads, contacts, and account actions.

Mailbuttons

Runtime: npx

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