Connect Ramp to Codex
Give Codex governed access to Ramp’s 124 tools through Runlayer, with identity, policy, scanning, and audit on every call.
Set up
Add Ramp to Codex in four steps
Admins approve the server once. Everyone in Codex then gets it through the same governed connection.
- 1
Approve Ramp in Runlayer
Add Ramp from the catalog and choose who can use it and which of its tools are allowed.
- 2
Connect Codex to Runlayer
Runlayer’s CLI adds the Runlayer Plugin to Codex’s local plugin marketplace, and users then enable it in Codex. With direct tool listing turned on for your deployment, Ramp’s 124 tools show up in Codex’s own tool list (Codex 0.122 or newer, installed through the Runlayer CLI).
Codex setup guide - 3
Sign in to Ramp
Each user signs in to Ramp with OAuth. Runlayer keeps the tokens out of the client’s configuration.
- 4
Use Ramp from Codex
Ramp’s approved tools appear in Codex. Every call is checked against policy and recorded.
Tools
124 Ramp tools in Codex
Runlayer policy decides which of these Codex users can call.
Activate card
Activate a card by its last four digits.
Add traveler loyalty program
Compatibility route for callers that have not migrated to SetTravelerLoyaltyProgram.
Answer policy question
Get an answer to a question about the expense policy or funds (amount, restrictions, etc).
Approve or reject bill
Approve or reject a submitted bill that is pending approval.
Approve or reject reimbursement
Approve or reject an employee reimbursement request for an out-of-pocket expense.
Approve or reject request
Approve or reject a pending unified request for spend allocation (fund), purchase order, or procurement approval.
Approve or reject transaction
Approve or reject a transaction awaiting your review.
Cancel reimbursement payment
Cancel the payment on a reimbursement that has been approved but not yet paid out.
Control
What Runlayer can see and stop in Codex
Some controls apply to every client at the gateway. Others depend on what Codex exposes to Runlayer.
Gateway policy (available)
Every Ramp call from Codex passes through Runlayer, where your policies can allow, alert, mask, or block it.
Audit trail (available)
Each call is recorded with the user, Codex as the client, the tool, and the policy and scanner decisions.
Client hooks (available)
Capture supported prompts, reasoning, local and MCP tool calls, responses, and scanner decisions in real time.
Stop a call before it runs (available)
Runlayer can deny a tool call or permission request before Codex runs it.
Block output after it runs (available)
Runlayer can block a tool’s output before Codex’s model sees it.
Redact output in place (not available)
Codex cannot take masked output, so Runlayer can block a tool’s output but not mask it. The gateway still applies policy to the call.
Frequently asked questions
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