OpenAI Codex API
OpenAI Codex API Alternative for CLI and App Workflows
A comparison-style page for users searching OpenAI Codex API, pricing, endpoint, or API key terms who want a practical OpenAI-compatible setup path.
OpenAI-compatible relay positioning captures API endpoint intent
Links to exact-match Codex API and Codex CLI API pages for conversion
OpenAI Codex API intent versus compatible API access
Many users search OpenAI Codex API because they expect an endpoint, key, or billing product for coding agents. This page should clearly position the site as an OpenAI-compatible Codex API relay, not an official OpenAI property.
- Use comparison wording instead of claiming to be OpenAI.
- Answer endpoint, API key, pricing, usage, and limit intent directly.
- Move buyers toward the Codex API hub and pricing section.
API endpoint and key setup for OpenAI-compatible tools
The practical path is a base URL plus bearer API key that clients can treat like an OpenAI-compatible endpoint. That lets Codex-style workflows run through CLI tools, IDE agents, curl, and SDKs that accept custom API bases.
- Provide an OpenAI-compatible chat completions shape.
- Use dashboard keys for buyer access and server-side keys for private relay infrastructure.
- Keep model, streaming, and fair-use guidance close to the setup snippets.
Pricing and limits for Codex-style API workflows
Searchers often include pricing, cost, quota, usage, or limit terms. The page should make plan fit and fair-use boundaries visible before a user starts a long coding-agent run.
- Map light, daily, heavy, and high-frequency use cases to plan tiers.
- Avoid unlimited claims for agent automation.
- Link API key, CLI, and pricing pages together for deeper crawl paths.
Codex API setup snippets
Copy the same base URL, API key, and model pattern into Codex CLI-style clients, Cursor, Cline, Open WebUI, curl, or custom OpenAI-compatible SDK calls.
Codex/API quickstart
Copy these Codex API values into Codex CLI-style tools, OpenAI-compatible SDKs, Cursor, Cline, or Open WebUI. The frontend endpoint validates your dashboard API key before forwarding to the private relay; the same account can also be used as a Codex usage subscription.
base_url
https://codexcliapi.com/api/v1/codexapi_key
cps_live_your_api_keymodel
gpt-5.4-miniThree-line curl
curl -N "https://codexcliapi.com/api/v1/codex/chat/completions" \
-H "Authorization: Bearer cps_live_your_api_key" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-5.4-mini","stream":true,"messages":[{"role":"user","content":"Say hello from the relay"}]}'Cursor
Provider: OpenAI Compatible
Base URL: https://codexcliapi.com/api/v1/codex
API Key: cps_live_your_api_key
Model: gpt-5.4-miniCline
API Provider: OpenAI Compatible
Base URL: https://codexcliapi.com/api/v1/codex
API Key: cps_live_your_api_key
Model ID: gpt-5.4-mini
Streaming: enabledOpen WebUI
Connection type: OpenAI API compatible
API Base URL: https://codexcliapi.com/api/v1/codex
API Key: cps_live_your_api_key
Model: gpt-5.4-miniUse the dashboard API key issued here. Do not paste owner-side OpenAI Platform keys, ChatGPT/Codex OAuth tokens, or private relay internal keys into Codex CLI or client tools.
Related Codex API searches
Codex API
Best for searches around Codex API, Codex API key, Codex API pricing, and Codex API limits where the user already wants usable developer access.
Codex CLI API
Best for exact-match Codex CLI API searches plus modifiers like key, URL, token, cost, limit, and not working.
Codex API Key
Best for API key, token, free key, change key, set key, login key, and ChatGPT API key adjacent searches.
Codex CLI
Best for install, setup, docs, Windows, update, usage, login, and API key searches around Codex CLI.
Codex API pricing
Compare free validation, daily use, heavy coding agent, and high-frequency API access tiers.
Codex API key dashboard
Manage customer-facing keys for the Codex relay after signing in.
OpenAI Codex API FAQ
Is this the official OpenAI Codex API?
No. This is an OpenAI-compatible Codex API relay and storefront for developer workflows. The copy is written to answer OpenAI Codex API search intent without claiming official OpenAI ownership.
Can OpenAI-compatible clients use this Codex API relay?
Yes, clients that support a custom OpenAI-compatible base URL can use the relay pattern with a dashboard API key and model name.
What should I compare before buying Codex API access?
Compare key setup, base URL compatibility, streaming support, plan price, fair-use limits, concurrency behavior, and whether your tool supports custom OpenAI-compatible endpoints.