Best Alternatives to Hookwarden — Webhook Integrity

Slack MCP Server

Runtime: Remote (SSE)

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

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.

Google Workspace

Runtime: npx

Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

Emailmd

Runtime: npx

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

Telnyx

Runtime not confirmed

Official TypeScript library for the Telnyx API

ARBuilder

Runtime: npx

AI-powered MCP server generating Stylus smart contracts, cross-chain SDKs, full-stack dApps, and Orbit chain deployment tools for Arbitrum.

Telegram MCP

Runtime: npx

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

Chatterboxio MCP Server

Runtime: Remote (SSE)

MCP server enabling AI agents to join online meetings, capture transcripts and recordings, and generate summaries.

Email MCP

Runtime: npx

Connects AI assistants to IMAP and SMTP accounts for reading, composing, organizing, scheduling, and analyzing email.

Lumail

Runtime: npx

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

Gmail

Runtime: npx

Gmail integration with OAuth authentication, message search, batch operations, and Sheets export

MCP Telegram

Runtime: npx

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