Connect Codex to CustomGPT.ai
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 CustomGPT.ai
A preset of real CustomGPT.ai operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect CustomGPT.ai
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
CustomGPT.ai
23 toolsGet current user.
List agents.
Create agent.
Get agent.
Update agent.
Delete agent.
Get agent statistics.
List documents.
Delete document.
Start document reindexing; acceptance does not prove indexing finished.
Get document metadata.
Get agent settings.
List conversations.
Create conversation.
Update conversation.
Delete conversation.
List messages.
Send message.
List sources.
Import a URL source; inspect source and page status for indexing progress.
Delete source.
Get citation.
Create chat completion.
About Codex
Frequently asked questions
More ways to connect
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Use CustomGPT.ai with other agents
Open your Codex agent in one click.
NoClick runs Codex for you with CustomGPT.ai wired in as tools. Connect your account and run.