Connect Codex to Alchemy
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 Alchemy
A preset of real Alchemy operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Alchemy
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
Alchemy
10 toolsList supported chain network IDs for app configuration.
List this account's apps, one page at a time; pass back next_cursor.
Retrieve an app's metadata and allowlists; API keys and RPC URLs are omitted.
Create an app with network IDs returned by list_chains.
Change an app's name or description without replacing its allowlists.
Permanently delete the specified app, invalidating its API access.
Replace all enabled networks; an empty list removes all networks.
Replace the address allowlist; an empty list clears restrictions.
Replace the origin allowlist; an empty list clears restrictions.
Replace the IP/CIDR allowlist; an empty list clears restrictions.
About Codex
Frequently asked questions
More ways to connect
Open your Codex agent in one click.
NoClick runs Codex for you with Alchemy wired in as tools. Connect your account and run.