Connect Codex to BILL
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 BILL
A preset of real BILL operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect BILL
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
BILL
20 toolsGet list of vendors.
Create a vendor.
Get vendor details.
Update a vendor.
Get list of bills.
Create a bill.
Get bill details.
Update a bill.
Get list of customers.
Create a customer.
Get customer details.
Update a customer.
Get list of bills pending approval.
Get list of bill approval policies.
Create a bill approval policy.
Approve or deny a bill.
Get list of payments.
Get payment details.
Create a payment.
Record AP payment.
About Codex
Frequently asked questions
More ways to connect
Open your Codex agent in one click.
NoClick runs Codex for you with BILL wired in as tools. Connect your account and run.