Connect Codex to ChatGPT (OpenAI)
Set up in minutes
Choose where it runs
On your computer through your own Codex, or hosted in the cloud. The rest of setup adapts to your choice:
Pick what it can do in ChatGPT (OpenAI)
A preset of real ChatGPT (OpenAI) operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect ChatGPT (OpenAI)
One sign-in. The agent acts through your account, scoped to the operations you picked.
Add your personal MCP link
The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Codex first calls in. Codex connects when a session starts — run codex, or restart a running one (in the Codex app, Restart).
Run this in your terminal. The Codex app shares its config, so it gets the server too
<your-link> is your personal server URL — setup mints it for you.
Tools Codex gets
ChatGPT (OpenAI)
25 toolsGenerate text or structured content with the Responses API.
Get response using the corresponding OpenAI endpoint.
Delete response using the corresponding OpenAI endpoint.
Cancel response using the corresponding OpenAI endpoint.
List response input items using the corresponding OpenAI endpoint.
Generate a chat completion from text messages; optionally store it for later reads.
Search a vector store for relevant text chunks.
Get chat completion using the corresponding OpenAI endpoint.
Delete chat completion using the corresponding OpenAI endpoint.
List chat messages using the corresponding OpenAI endpoint.
Create numeric embedding vectors for text.
Classify text against OpenAI safety categories.
List models using the corresponding OpenAI endpoint.
Get model using the corresponding OpenAI endpoint.
List files using the corresponding OpenAI endpoint.
Get file using the corresponding OpenAI endpoint.
Delete file using the corresponding OpenAI endpoint.
Start asynchronous processing of an existing uploaded batch input file.
List batches using the corresponding OpenAI endpoint.
Get batch using the corresponding OpenAI endpoint.
Cancel batch using the corresponding OpenAI endpoint.
Create a vector store, optionally from existing uploaded file IDs.
List vector stores using the corresponding OpenAI endpoint.
Get vector store using the corresponding OpenAI endpoint.
Delete vector store using the corresponding OpenAI endpoint.
About Codex
Frequently asked questions
More ways to connect
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Use ChatGPT (OpenAI) with other agents
Open your Codex agent in one click.
NoClick runs Codex for you with ChatGPT (OpenAI) wired in as tools. Connect your account and run.