OpenAI Codex CLI is a lightweight coding agent that runs directly in your terminal, letting you interact with AI to analyze, modify, and execute code in your projects. While Codex delivers powerful code generation and execution capabilities, Portkey adds essential enterprise controls for production deployments:

Unified AI Gateway - Single interface for 250+ LLMs with API key management (beyond Codex’s default model options)
Centralized AI observability: Real-time usage tracking for 40+ key metrics and logs for every request
Governance - Real-time spend tracking, set budget limits and RBAC in your Codex setup
Security Guardrails - PII detection, content filtering, and compliance controls

This guide will walk you through integrating Portkey with OpenAI Codex CLI and setting up essential enterprise features including usage tracking, access controls, and budget management.

If you are an enterprise looking to use Codex CLI in your organization, check out this section.

1. Setting up Portkey

Portkey allows you to use 250+ LLMs with your Codex CLI setup, with minimal configuration required. Let’s set up the core components in Portkey that you’ll need for integration.

Create Virtual Key

Virtual Keys are Portkey’s secure way to manage your LLM provider API keys. Think of them like disposable credit cards for your LLM API keys, providing essential controls like:

Budget limits for API usage
Rate limiting capabilities
Secure API key storage

To create a virtual key: Go to Virtual Keys in the Portkey App. Save and copy the virtual key ID

Save your virtual key ID - you’ll need it for the next step.

Create Default Config

Configs in Portkey are JSON objects that define how your requests are routed. They help with implementing features like advanced routing, fallbacks, and retries.We need to create a default config to route our requests to the virtual key created in Step 1.To create your config:

Go to Configs in Portkey dashboard

Create new config with:

{
    "virtual_key": "YOUR_VIRTUAL_KEY_FROM_STEP1",
    "override_params": {
      "model": "gpt-4o" // Your preferred model name
    }
}

Save and note the Config name for the next step

This basic config connects to your virtual key. You can add more advanced portkey features later.

Configure Portkey API Key

Now create Portkey API key access point and attach the config you created in Step 2:

Go to API Keys in Portkey and Create new API key
Select your config from Step 2
Generate and save your API key

Save your API key securely - you’ll need it for Codex CLI integration.

2. Integrate Portkey with OpenAI Codex CLI

Now that you have your Portkey components set up, let’s connect them to OpenAI Codex CLI. The integration leverages Codex’s provider configuration options to route all requests through Portkey’s AI Gateway.

You need your Portkey API Key from Step 1 before going further.

Using Portkey Configuration File

OpenAI Codex CLI supports a configuration file where you can specify your AI provider settings. Let’s set up this configuration to use Portkey:

Create or edit the Codex configuration file at ~/.codex/config.json:

{
  "provider": "portkey",
  "model": "gpt-4o",
  "providers": {
    "portkey": {
      "name": "Portkey",
      "baseURL": "https://api.portkey.ai/v1",
      "envKey": "PORTKEY_API_KEY"
    }
  }
}

Set your Portkey API key as an environment variable:

export PORTKEY_API_KEY="your-portkey-api-key-here"

Note: This command sets the key only for your current terminal session. You can add the export line to your shell’s configuration file (e.g., ~/.zshrc) for persistence, or place it in a .env file at the root of your project.

Test your integration:

codex "explain this repository to me"

3. Set Up Enterprise Governance for Codex

Why Enterprise Governance? If you are using Codex CLI inside your organization, you need to consider several governance aspects:

Cost Management: Controlling and tracking AI spending across teams
Access Control: Managing which teams can use specific models
Usage Analytics: Understanding how AI is being used across the organization
Security & Compliance: Maintaining enterprise security standards
Reliability: Ensuring consistent service across all users

Portkey adds a comprehensive governance layer to address these enterprise needs. Let’s implement these controls step by step. Enterprise Implementation Guide

Step 1: Implement Budget Controls & Rate Limits

Step 2: Define Model Access Rules

As your AI usage scales, controlling which teams can access specific models becomes crucial. Portkey Configs provide this control layer with features like:

Access Control Features:

Model Restrictions: Limit access to specific models
Data Protection: Implement guardrails for sensitive data
Reliability Controls: Add fallbacks and retry logic

Example Configuration:

Here’s a basic configuration to route requests to OpenAI, specifically using GPT-4o:

{
	"strategy": {
		"mode": "single"
	},
	"targets": [
		{
			"virtual_key": "YOUR_OPENAI_VIRTUAL_KEY",
			"override_params": {
				"model": "gpt-4o"
			}
		}
	]
}

Create your config on the Configs page in your Portkey dashboard. You’ll need the config ID for connecting to Codex CLI’s setup.

Configs can be updated anytime to adjust controls without affecting running applications.

Step 3: Implement Access Controls

Create User-specific API keys that automatically:

Track usage per user/team with the help of virtual keys
Apply appropriate configs to route requests
Collect relevant metadata to filter logs
Enforce access permissions

Create API keys through:

Example using Python SDK:

from portkey_ai import Portkey

portkey = Portkey(api_key="YOUR_ADMIN_API_KEY")

api_key = portkey.api_keys.create(
    name="engineering-team",
    type="organisation",
    workspace_id="YOUR_WORKSPACE_ID",
    defaults={
        "config_id": "your-config-id",
        "metadata": {
            "environment": "production",
            "department": "engineering"
        }
    },
    scopes=["logs.view", "configs.read"]
)

For detailed key management instructions, see our API Keys documentation.

Step 4: Deploy & Monitor

Enterprise Features Now Available

Codex CLI now has:

Departmental budget controls
Model access governance
Usage tracking & attribution
Security guardrails
Reliability features

Portkey Features

Now that you have enterprise-grade Codex CLI setup, let’s explore the comprehensive features Portkey provides to ensure secure, efficient, and cost-effective AI operations.

1. Comprehensive Metrics

Using Portkey you can track 40+ key metrics including cost, token usage, response time, and performance across all your LLM providers in real time. You can also filter these metrics based on custom metadata that you can set in your configs. Learn more about metadata here.

2. Advanced Logs

Portkey’s logging dashboard provides detailed logs for every request made to your LLMs. These logs include:

Complete request and response tracking
Metadata tags for filtering
Cost attribution and much more…

3. Unified Access to 250+ LLMs

You can easily switch between 250+ LLMs. Call various LLMs such as Anthropic, Gemini, Mistral, Azure OpenAI, Google Vertex AI, AWS Bedrock, and many more by simply changing the virtual_key in your default config object.

4. Advanced Metadata Tracking

Using Portkey, you can add custom metadata to your LLM requests for detailed tracking and analytics. Use metadata tags to filter logs, track usage, and attribute costs across departments and teams.

Custom Metadata

5. Enterprise Access Management

Budget Controls

Set and manage spending limits across teams and departments. Control costs with granular budget limits and usage tracking.

Single Sign-On (SSO)

Enterprise-grade SSO integration with support for SAML 2.0, Okta, Azure AD, and custom providers for secure authentication.

Organization Management

Hierarchical organization structure with workspaces, teams, and role-based access control for enterprise-scale deployments.

Access Rules & Audit Logs

Comprehensive access control rules and detailed audit logging for security compliance and usage tracking.

6. Reliability Features

Fallbacks

Automatically switch to backup targets if the primary target fails.

Conditional Routing

Route requests to different targets based on specified conditions.

Load Balancing

Distribute requests across multiple targets based on defined weights.

Caching

Enable caching of responses to improve performance and reduce costs.

Smart Retries

Automatic retry handling with exponential backoff for failed requests

Budget Limits

Set and manage budget limits across teams and departments. Control costs with granular budget limits and usage tracking.

7. Advanced Guardrails

Protect your Codex CLI’s data and enhance reliability with real-time checks on LLM inputs and outputs. Leverage guardrails to:

Prevent sensitive data leaks
Enforce compliance with organizational policies
PII detection and masking
Content filtering
Custom security rules
Data compliance checks

Guardrails

Implement real-time protection for your LLM interactions with automatic detection and filtering of sensitive content, PII, and custom security rules. Enable comprehensive data protection while maintaining compliance with organizational policies.

FAQs

How do I update my Virtual Key limits after creation?

Can I use multiple LLM providers with the same API key?

How do I track costs for different teams?

What happens if a team exceeds their budget limit?

Can I use Portkey with the open source version of Codex CLI?

Next Steps

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For enterprise support and custom features, contact our enterprise team.

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Tracing Providers

​1. Setting up Portkey

​2. Integrate Portkey with OpenAI Codex CLI

​Using Portkey Configuration File

​3. Set Up Enterprise Governance for Codex

​Enterprise Features Now Available

​Portkey Features

​1. Comprehensive Metrics

​2. Advanced Logs

​3. Unified Access to 250+ LLMs

​4. Advanced Metadata Tracking

Custom Metadata

​5. Enterprise Access Management

Budget Controls

Single Sign-On (SSO)

Organization Management

Access Rules & Audit Logs

​6. Reliability Features

Fallbacks

Conditional Routing

Load Balancing

Caching

Smart Retries

Budget Limits

​7. Advanced Guardrails

Guardrails

​FAQs

​Next Steps

1. Setting up Portkey

2. Integrate Portkey with OpenAI Codex CLI

Using Portkey Configuration File

3. Set Up Enterprise Governance for Codex

Enterprise Features Now Available

Portkey Features

1. Comprehensive Metrics

2. Advanced Logs

3. Unified Access to 250+ LLMs

4. Advanced Metadata Tracking

5. Enterprise Access Management

6. Reliability Features

7. Advanced Guardrails

FAQs

Next Steps