Does ChatGPT support MCP?

Yes. ChatGPT supports remote MCP servers through Developer mode, which gives it full Model Context Protocol client support for both read and write tools. You enable it in Settings, then add your MCP server's URL as an app. Both SSE and streaming HTTP transports are supported, along with OAuth.

Which ChatGPT plans can use MCP?

Per OpenAI's documentation, Developer mode is available to Pro, Plus, Business, Enterprise, and Education accounts, on the web. It is not available in the mobile apps. If you do not see Developer mode in your settings, check that you are on the web and on one of those plans.

What is the Konshus MCP server URL?

https://konshus.ai/api/mcp — a remote MCP server over streaming HTTP with OAuth 2.1. You paste that URL into ChatGPT's app setup, sign in to your Konshus account, approve access, and ChatGPT can then read your memory vault during conversations.

Is connecting an MCP server to ChatGPT safe?

It depends entirely on what you connect. OpenAI flags Developer mode as elevated risk, because a malicious MCP server can attempt to steal information and the model can make mistakes on write actions. Only connect servers you trust, review write actions before confirming them, and prefer read-only access where it is offered.

What is the difference between MCP and the ChatGPT browser extension?

MCP is a live connection — ChatGPT can query your vault mid-conversation and pull exactly what it needs. An extension injects a prepared summary into the composer before you send. MCP is deeper and requires an eligible plan; the extension works for everyone and needs no setup on the provider's side.

Does MCP work with Claude too?

Yes. MCP is an open protocol, not an OpenAI feature. The same Konshus MCP server works with Claude, and with any other MCP-capable client. That is the point of the protocol — one server, many assistants.

A guide · ~7 min read

ChatGPT MCP: giving ChatGPT a memory it does not own

ChatGPT supports remote MCP servers. That is a bigger deal than it sounds, because it means the model no longer has to remember you inside its own small memory bucket — it can look you up, live, from somewhere you control.

What MCP actually is

The Model Context Protocol is an open standard for connecting AI assistants to external tools and data. A server exposes a set of tools; a client — ChatGPT, Claude, Cursor, others — discovers those tools and calls them mid-conversation when they are useful.

Crucially it is not an OpenAI feature. It is a protocol. The same server answers Claude and ChatGPT identically, which is why it is the right foundation for anything you want to survive a change of provider.

Who can use it

ChatGPT's MCP support lives behind Developer mode. Per OpenAI's documentation it is available to Pro, Plus, Business, Enterprise, and Education accounts, on the web only. There is no mobile support.

OpenAI labels Developer mode as elevated risk, and they are right to. It grants full read and write tool access. Connect servers you trust, read write actions before confirming them, and treat an unfamiliar MCP URL the way you would treat an unfamiliar browser extension.

Connecting Konshus

Konshus runs a remote MCP server over streaming HTTP with OAuth 2.1. The URL is:

https://konshus.ai/api/mcp

In ChatGPT, open Settings → Security and login and turn on Developer mode.
Go to the apps and connectors page and add a new developer-mode app.
Paste the URL above.
Sign in to Konshus when prompted and approve access.
In a conversation, pick Developer mode from the composer and select Konshus.

Step-by-step with screenshots: how to add an MCP connector to ChatGPT.

What it changes

ChatGPT's own memory holds a paragraph. A connected vault holds years. Instead of cramming a summary of you into eight slots, the model queries for what it needs when it needs it — the relevant project, the relevant preference, the thing you said in March.

And because the vault sits outside the provider, the same context answers Claude tomorrow. Switching models stops costing you your history. That is the argument in the hidden cost of switching AI models, finally with a technical answer attached.

Short answer

ChatGPT can now read from a memory server you control, over an open protocol, on an eligible plan. Point it at https://konshus.ai/api/mcp and it stops guessing at who you are.

Frequently Asked Questions

One vault. Every assistant.

Konshus holds your memory outside any provider and serves it to ChatGPT and Claude alike over MCP — so the model changes and you don't have to start over.

Meet Konshus