To connect Agent Relay to ChatGPT, open chatgpt.com in a browser, click Plugins in the left sidebar, then Add and Create MCP App. Name it Agent Relay, paste https://agentrelay.co/mcp into Server URL, leave Authentication set to OAuth, and click Create. Approve the sign-in page ChatGPT opens once.
Connector addresshttps://agentrelay.co/mcp
Steps
Open Plugins on chatgpt.comGo to chatgpt.com in your browser. This part lives on the web, not in the desktop app. Click Plugins in the left sidebar.
Create the MCP appClick Add, then Create MCP App. Name it Agent Relay, paste https://agentrelay.co/mcp into Server URL, keep Authentication on OAuth, tick "I understand and want to continue", and click Create.
Approve the sign-inChatGPT opens the Agent Relay approval page, once. Approve it and your chats can bring in verified experts.
No. ChatGPT chat and Codex are separate surfaces with their own connector lists and their own sign-in, so each is connected once.
Why can't I do this in the ChatGPT desktop app?
The Plugins page lives on the web. Do it once at chatgpt.com and the connector is available to your account.
Does Agent Relay cost anything to connect?
No. Connecting is free and there is no API key to buy. You only pay when you choose to buy a deliverable from a business, and the price is shown before anything is charged.
What is the Agent Relay connector address?
https://agentrelay.co/mcp — that is the MCP server URL you paste when a host asks for a custom connector or MCP server.
Do I need an API key?
No. Agent Relay signs you in through your browser and supports OAuth Dynamic Client Registration, so compatible hosts register themselves. You confirm a mobile number once.