Best Alternatives to Curviate MCP

Google Workspace

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

Sentvia MCP

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

Line Bot MCP Server

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Verified

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

Threadline MCP

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

Hosted LinkedIn MCP server on your own account: 33 tools for search, profiles, inbox, posts, email.

Emailmd

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Render, lint, and preview markdown emails through MCP using hosted HTTP or local stdio transport.

PipesHub

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Permissioned search and cited answers over Slack, Drive, Gmail, Jira, and 50+ workplace sources.

Gmail

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

Discord MCP

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Connect MCP-compatible AI clients to Discord through a typed local server with 192 tools.

Telnyx

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Official TypeScript library for the Telnyx API

Mail Index

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Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.

MCP Telegram

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