"Open-Source MCP Server in Python with PostgreSQL and OAuth 2.0" matching MCP servers:

Enables users to interact with X/Twitter via Claude, allowing posting tweets, searching, liking, retweeting, and more using OAuth 2.0 PKCE authentication.

A self-hostable Gmail MCP server that enables Gmail search/read, sending, replies, drafts, labels, and attachment downloads via MCP tools with OAuth authorization. Supports stdio and streamable HTTP transports.

Enables Claude to read, search, send, and manage email across multiple IMAP/SMTP accounts through OAuth 2.1-secured MCP tools.

Relays a result screenshot to Slack so you can review a coding agent's output without opening the app.

Enables comprehensive Google Meet and Calendar management through Google Calendar API v3 and Google Meet API v2, supporting calendar event creation with Meet links, space management, transcription, recording, attendance tracking, and meeting moderation controls.

Enables ChatGPT to search, read, send, and organize email in a self-hosted inbox through private MCP tools.

Enables AI agents to access user and message data through MCP resources, providing REST API integration for user management with paginated lists and thread tracking.

A Python-based MCP server and React dashboard designed for system monitoring and automated notifications via PushPlus and Notion. It enables users to deploy a secure heartbeat tracking system with real-time updates through SSE.

An MCP server that enables interaction with Slack workspaces through tools for managing channels, sending messages, and retrieving user profiles. It leverages the Slack API and FastMCP to provide functionalities like message history lookup and reaction management.

Enables AI assistants to manage WhatsApp: list chats, send and receive messages, download media, and transcribe voice notes via the unofficial Baileys library.

A Model Context Protocol server providing file search and question tools for AI models. Enables keyword search in files with line numbers and integration with external chat services.

Enables language models to read and analyze LINE Bot conversations through a standardized MCP interface. Supports text, sticker, and image messages with webhook event handling and message storage in JSON format.

Enables interaction with Microsoft Outlook for managing emails and calendars through OAuth2 delegated access. It provides a stateless, spec-compliant server that allows users to authenticate and perform mail and calendar operations with their own Microsoft accounts.

Provides AI agents with unified access to Gmail for email management (send, read, list, labels) and PostgreSQL databases for executing queries and schema inspection.

Enables interaction with Instantly.ai email outreach platform through 31 tools across accounts, campaigns, leads, emails, and analytics. Supports both local and remote deployment with multi-tenant authentication.

Enables agentic coordination by connecting humans and AI agents through group messaging, project tracking, and milestone management. It provides tools for consensus voting, progress checkpoints, and multi-session collaboration across various agentic platforms.

Enables AI assistants to manage RongCloud instant messaging services, including user registration, message sending, and group operations.

Enables users to interact with a business co-founder/executive assistant that integrates with Google services (Gmail, Calendar, Contacts), web search, and includes approval gating for sensitive operations.

A remote Model Context Protocol server for Feishu (Lark) that supports OAuth authentication and deployment on Cloudflare Workers. It allows AI clients to interact with Feishu documents, perform content searches, and manage document blocks with a zero-configuration experience.

A self-hosted WhatsApp gateway that exposes messaging capabilities via MCP, allowing AI agents to send, receive, and manage WhatsApp messages through a single-command setup with SQLite storage.