Connect Codex to Scale 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 Scale AI
A preset of real Scale AI operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Scale 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
Scale AI
20 toolsList model bundles owned by the connected account.
Read a model bundle's deployment metadata.
Find the latest bundle for a model name.
List model deployments owned by the connected account.
Read one model endpoint's configuration and status.
Deploy a bundle on provisioned workers. This allocates paid compute.
Change a deployment's bundle, compute settings, labels or metadata.
Delete a model deployment and stop its workers.
Restart the workers serving a model deployment.
Submit JSON model inputs for asynchronous inference.
Poll asynchronous inference status and retrieve the JSON result.
Run synchronous inference with JSON model inputs.
List the connected account's fine-tuning jobs.
Start a paid fine-tuning job using an existing training file.
Read fine-tuning progress and the resulting model name.
Cancel a fine-tuning job.
Read a fine-tuning job's progress events.
List file IDs, names and sizes for the connected account.
Read file metadata without downloading file contents.
Delete a stored file.
About Codex
Frequently asked questions
More ways to connect
Open your Codex agent in one click.
NoClick runs Codex for you with Scale AI wired in as tools. Connect your account and run.