ChatGPT MCP Servers: The Complete List (2026)
ChatGPT speaks MCP. Since OpenAI adopted the Model Context Protocol at DevDay in October 2025, the same servers that power Claude and Cursor can power ChatGPT — either through the apps OpenAI has already packaged for you, or through a custom connector you paste in yourself. Below is the running list of MCP servers worth connecting to ChatGPT, grouped by what they do, with an honest note on which ones are genuinely official, what each plan unlocks, and the one limit that survives every connection on the page.
If you want the protocol itself explained first, What Is MCP? does it in a sentence and a diagram. If you want the setup walkthrough rather than the catalog, How to Use MCP Servers in ChatGPT covers Developer Mode step by step. This page is the map.
Three different things get called “ChatGPT MCP”
They are constantly conflated, and which one you want changes the whole answer:
- Built-in apps (formerly connectors). OpenAI packaged the integration; you click connect and sign in. No URL, no Developer Mode. Gmail, Google Drive, SharePoint, GitHub and the rest live here.
What OpenAI called connectors are now officially "apps" — a December 2025 renaming that changed the vocabulary and nothing else. Plenty of documentation, including OpenAI's own URLs, still says connectors.
- Custom MCP connectors. You paste a remote MCP server’s HTTPS URL into ChatGPT yourself. This is what people mean by “adding an MCP server to ChatGPT,” and it’s the only path for a server OpenAI hasn’t packaged.
- Apps SDK. The builder-side path: how a company ships an MCP-backed integration that any ChatGPT user can install, with in-chat UI and a review process. If you’re publishing rather than installing, that’s your lane.
There’s now a fourth word in the mix.
OpenAI's app directory became a plugin directory on July 9, 2026, shared between ChatGPT and Codex. Plugins are packages that can carry apps, skills, or app templates — a repackaging of how things are listed and discovered, not a change to the MCP plumbing underneath.
You can browse it as the plugin directory in OpenAI’s own help center. If you’re keeping score: plugins (2023) died, connectors became apps (2025), and apps now ship inside plugins (2026). The plumbing has been MCP the whole time since DevDay.Which plans get custom MCP servers
The built-in apps are broadly available. Custom MCP connectors sit behind Developer Mode, and that’s the gate that catches people:
- Free — no custom connectors. Built-in apps only, and a limited set of those.
- Plus and Pro — Developer Mode available, custom MCP servers allowed.
- Business, Enterprise, and Edu — available, but a workspace admin can switch Developer Mode off org-wide or allowlist specific connectors. If your toggle is missing, that’s usually policy rather than a bug.
Developer Mode is web-first and still labelled beta. OpenAI has also moved the toggle more than once — it has lived under Settings → Connectors → Advanced, and recent OpenAI documentation points at Settings → Security and login. If it isn’t in one, check the other. Two things stay true across every version: ChatGPT only accepts remote servers — an HTTPS endpoint, never a local npx/node stdio server, which you’d have to bridge with something like mcp-remote — and ChatGPT asks you to confirm before any write action, every conversation.
Plan limits bite here in a second way: tool calls burn messages. ChatGPT Plus limits and the message limit breakdown cover what an agentic loop actually costs you.
The MCP servers worth connecting to ChatGPT
Every link goes to a full breakdown of that app’s server — official or community, what it exposes, how to connect it, and where it stops.
CRM & Sales Salesforce · HubSpot · Pipedrive · Attio · Apollo · GoHighLevel · Gong
Email & Marketing Gmail · Outlook · Mailchimp · Klaviyo · ActiveCampaign · Instantly · Google Ads · Meta Ads · Semrush · Ahrefs · Customer.io · Resend · SendGrid
Productivity & Docs Notion · Airtable · Coda · Google Sheets · Google Docs · Google Slides · Confluence · TickTick · Contentful
Project Management Asana · Monday · ClickUp · Trello · Basecamp · Wrike · Todoist · Jira · Linear · Shortcut
Communication & Messaging Slack · Microsoft Teams · Discord · Telegram · WhatsApp · Zoom
Customer Support Zendesk · Freshdesk · Freshservice · Intercom · PagerDuty
Files & Storage Dropbox · Box · Google Drive · SharePoint
E-commerce & Payments Shopify · Stripe · Square · Wix · Webflow · PandaDoc · WooCommerce · Amazon
Accounting & Finance QuickBooks · Xero · YNAB · Brex
Analytics Google Analytics · Google Search Console · Apify
Social & Content LinkedIn · YouTube · Reddit · Canva · Adobe · Miro · Figma · Instagram
Forms, HR & Suites Typeform · Rippling · Zoho · Ashby
For the protocol-wide view that isn’t ChatGPT-specific, MCP Servers: The Complete List is the parent page.
Official versus “there’s a GitHub repo” — the distinction that matters
A vendor marketing page about MCP is not a shipped server, and this trips people constantly. Before you paste a URL into ChatGPT, know which kind you’re pasting. From our per-app research:
Genuinely official, vendor-hosted — Notion (mcp.notion.com), Stripe, Intercom, Square, Airtable, Asana, Canva, HubSpot, Salesforce, Slack, Trello, Typeform, Xero, Shopify, PagerDuty, Monday, Dropbox.
Official but genuinely awkward to switch on — Gmail is real but Developer-Preview-gated behind a Google Cloud project and OAuth setup, and it has no send tool at all. Outlook exists from Microsoft but is not a toggle. QuickBooks is official from Intuit and still not plug-and-play. Google Drive is official and more gated than most people expect. Adobe is official but fragmented across three separate servers.
No official server — anything you find is community — Google Sheets, Zendesk, WhatsApp (nothing from Meta), LinkedIn. Community servers can be excellent, but you’re trusting someone else’s code with an OAuth token, and you’re hosting it.
The general rule when a first-party endpoint exists: use it. Point at mcp.notion.com rather than a third-party wrapper of Notion’s API.
Many of these don’t need MCP at all in ChatGPT
Worth checking before you go near Developer Mode: a lot of the apps above are already packaged as built-in ChatGPT apps, which means no URL, no hosting, no OAuth scopes to reason about. If a one-click version exists, take it.
Our per-app breakdowns cover what ChatGPT can genuinely do with each one today — including where it’s read-only:
Gmail · Google Calendar · Google Drive · Google Sheets · Google Docs · Outlook · OneDrive · SharePoint · Notion · Slack · Microsoft Teams · GitHub · Linear · Jira · Asana · Trello · ClickUp · Monday · HubSpot · Salesforce · Pipedrive · Stripe · Shopify · QuickBooks · Xero · Airtable · Zendesk · Intercom · Canva · Figma · Zoom · Todoist
The full catalog, with plan gates and what each one can write, is in ChatGPT Connectors: The Complete List.
Two capability notes that decide whether any of this is useful to you. On email:
Sending is no longer a clean dividing line. ChatGPT sends from Gmail with a confirmation each time. Claude sends through Microsoft 365 — added in July 2026, off until you enable it — while its Gmail connector remains draft-only. Neither will attach a file.
On calendar:Whether ChatGPT can create a calendar event depends on your plan. On Plus and Pro the Google Calendar connection reads and nothing more. On Business and Enterprise an admin can switch on write actions, which are off by default and still confirm before each change.
Running a bigger deployment? ChatGPT for Business covers admin controls, and company knowledge covers what ChatGPT does with connected data across a workspace.
The limit every server on this page shares
Connect all of them and the same thing is still true, because it’s a property of the protocol rather than any one server:
There is no such thing as an MCP trigger. The protocol's own working group states plainly that clients find out about server-side changes by polling for them, and a real event mechanism remains unshipped.
Which means, concretely:
- Every action is one you typed. An MCP server sits there until asked. It will happily create the Notion page — after you tell it to, in a chat, in words.
- One app per server. The Slack server knows Slack. Getting a closed deal to create a doc and post to Slack and book the kickoff means wiring three servers and hoping ChatGPT juggles them in one turn.
- You own the plumbing. Hosting, OAuth scopes, token rotation, and the blast radius of write access are yours for anything that isn’t a packaged app.
- Write actions need confirmation. Useful as a safety rail, fatal to anything unattended: ChatGPT prompts before every write, so nothing completes while you’re away.
Scheduled Tasks closed part of this in 2026 — ChatGPT will now run a prompt on a timer against your connected accounts, unattended. That’s real, and it kills the old “only works in a chat you have open” complaint. But it moved the line rather than erasing it:
The unattended-work gap closed in 2026: ChatGPT Scheduled Tasks and Claude Cowork both run on their own. The remaining gap is what starts them. These run on a timer, not in response to an event in your apps, so "when this happens, do that" is still outside what they do.
Where the event trigger comes from
That gap — react to something happening, across several apps, without anyone typing — is what Carly is for. Carly connects natively to ~260 apps, most of the ones on this page included, and to anything else with a public API through your own key on the integrations dashboard. No server to host, no remote URL to keep alive, no Developer Mode toggle to hunt for.
The difference is what starts the work:
- When a deal is marked won in your CRM → create the onboarding doc, post it in the right Slack channel, and book the kickoff — the moment it happens, not on the next hourly sweep.
- When an invoice goes past due in QuickBooks → draft the follow-up, log the task, ping the account owner.
- When a form comes in → enrich the contact, route it, and reply — while the lead is still warm.
Carly is free for unlimited Zapier-style workflows, with AI agents from $35/month, so the plumbing between your apps isn’t metered.
MCP in ChatGPT is the right tool when you want to ask an app something, or make an edit while you’re sitting there. Carly is for when the work should happen whether or not anyone opened a chat.
FAQ
Does ChatGPT support MCP servers? Yes. OpenAI adopted the Model Context Protocol at DevDay in October 2025, and ChatGPT connects to MCP servers two ways: built-in apps that OpenAI packaged for you, and custom connectors where you paste a remote server URL yourself. Custom connectors require Developer Mode on a paid plan.
How do I add an MCP server to ChatGPT? Enable Developer Mode in Settings — it has lived under Connectors → Advanced and, in recent OpenAI docs, under Security and login — then add a custom connector, paste the server’s HTTPS URL, authenticate through OAuth or a token, and pick which tools to enable. The full walkthrough has the screens.
Can ChatGPT run a local MCP server?
No. ChatGPT accepts remote HTTPS endpoints only. Anything whose setup instructions start with npx or node is a local stdio server, and you’d need to bridge it to a public URL with a tool like mcp-remote before ChatGPT can reach it. Claude Desktop and Cursor run local servers directly; ChatGPT does not.
Is MCP in ChatGPT the same as in Claude? Same protocol, different surface. A well-built remote server works in both. The differences are practical: ChatGPT is remote-only and confirms every write action, while Claude runs local servers too. Carly’s own server works with either — see Carly MCP.
Do I need Plus for ChatGPT MCP servers? For custom MCP connectors, yes — Developer Mode requires a paid plan (Plus, Pro, Business, Enterprise, or Edu), and on workspace plans an admin can disable it. Built-in apps reach further down, though the Free tier gets a reduced set.
Can an MCP server in ChatGPT trigger an automation? No. MCP has no event mechanism — servers answer requests, they don’t watch apps. ChatGPT’s Scheduled Tasks can run a prompt on a timer against your connectors, but a timer isn’t an event: nothing starts because a deal closed or an invoice went past due. For that you need an automation layer like Carly.
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