Connect CortexPlus to any AI

ChatGPT

Custom connectors require Developer mode. Whether it is available depends on your plan and your workspace's policy — on some accounts an admin has to enable it.

1. Open Settings → Security and login → Developer mode and turn it on.
2. Go to chatgpt.com/plugins and click the + button.
3. Give the connector a name and a description.
4. In Connection, paste https://mcp.cortexplus.io/mcp.

Claude

Add CortexPlus as a custom connector — available on Free, Pro, Max, Team and Enterprise, on the web, desktop and mobile apps. On Team and Enterprise an owner adds it first under Organization settings → Connectors.

1. Open Customize → Connectors in Claude's settings.
2. Click +, then Add custom connector.
3. Paste https://mcp.cortexplus.io/mcp and save.
4. Click Connect — Claude signs you in to CortexPlus by itself.

Screens by plan: Anthropic's connector guide.

Claude Code and other CLIs

Any CLI that speaks MCP can use the same URL. For Claude Code, run:

claude mcp add --transport http cortexplus https://mcp.cortexplus.io/mcp

VS Code

One click installs the server in VS Code through its official MCP installation URL:

Install in VS Code

Cursor

One click installs the server in Cursor through its MCP install link:

Install in Cursor

Gemini

There is no self-serve path in the Gemini app today: Connected Apps is a curated list chosen by Google and does not accept third-party MCP servers. To use CortexPlus with Gemini models you have two options: any MCP-capable CLI using the same URL above (for example Gemini CLI's mcpServers settings), or the REST API — see the integration docs.

Any other MCP client

Point the client at the URL as a Streamable HTTP (remote HTTP) server and, if it asks for a credential, use your CortexPlus API key:

https://mcp.cortexplus.io/mcp
Authorization: Bearer cortex_...

Clients with OAuth support discover everything on their own through /.well-known/oauth-protected-resource — dynamic client registration and PKCE are already supported, so no key has to be pasted at all.

No account yet?

You do not need to create an account or generate an API key beforehand. Once the connector is added, just ask your AI to run the signup tool with your email address — CortexPlus emails you an authentication key, and the AI calls connect with that key. Your account is created, or signed in, inside the conversation.

In clients with OAuth it is even simpler: the authorization flow itself takes care of signing you up or in.

This page also exists as plain Markdown for AI assistants at cortexplus.io/connect.md, and full API details are in the docs.