"RAG (Retrieval-Augmented Generation) MCP Integration for ChatGPT" matching MCP servers:

A Model Context Protocol server that allows AI assistants to communicate with the ChatGPT desktop app on macOS, enabling users to send prompts to ChatGPT from any MCP-compatible assistant.

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

Enables AI assistants to list and read existing ChatGPT conversations and send messages into them, retrieving the assistant's reply through ChatGPT Desktop's native bridge. It works without cookies, UI automation, or an OpenAI API key.

Enables voice-controlled Instagram account management from the Mac notch, including reading insights, comments, DMs, and publishing photos or carousels via natural language, with scheduled publishing and secure photo handling.

MCP server that lets Claude Code consult ChatGPT for a second opinion mid-task, with explicit context passed by the caller.

Enables ChatGPT to connect to WhatsApp via a self-hosted bridge, allowing users to list conversations, search contacts, read messages, and generate automated daily reports for agencies.

Enables ChatGPT and Codex to interact with Zoho Mail through Zoho's official MCP service, with safe workflows and capability boundaries.

Publish reliable, duplicate-free Telegram posts from ChatGPT — manually or as part of a scheduled workflow.

Provides MCP-compatible AI clients with full access to a Flarum forum's API, enabling reading, searching, creating discussions, replying, moderation, and management of users, tags, and groups.

Enables a dedicated WeChat account to route incoming messages as MCP events to ChatGPT Work automations, which can generate and send idempotent replies back to the original sender using signed webhooks and persisted pending queues.

Shows your current Claude Desktop activity as Discord Rich Presence, including model, status, usage, and subscription info.

Enables AI assistants to book meetings, check availability, and manage Cal.com scheduling through natural conversation.

Enables AI assistants to interact with Slack workspaces by listing channels, posting messages and thread replies, adding emoji reactions, retrieving channel history and thread replies, and inspecting user profiles. Supports both stdio and Streamable HTTP transports for flexible integration.

Enables read-only, sanitized access to Yahoo Mail through MCP, including email summaries, search, and folder listing.

Enables AI assistants to fetch web content, search for products on Google Shopping, and integrate with WhatsApp messaging. Serves as a bridge between Puch AI and external services through authenticated API endpoints.

Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.

Enables MCP-compatible clients to securely access and manage Telegram accounts, chats, messages, media, and contacts, with tiered permissions, write controls, and local caching.

Automates posting articles to Dev.to and sharing posts on LinkedIn via command-line, cron jobs, or Copilot sessions.

A Model Communication Protocol server that connects Meetup.com's event discovery APIs with Anthropic's Claude LLM, enabling intelligent event discovery and natural language querying for Meetup events.

Remote MCP server that enables ChatGPT users to manage social media posts, approvals, and scheduling through authenticated Socializioz tools with safety restrictions.