Search need
Codex IDE custom base URL, OpenAI-compatible API setup, and ChatGPT 5.5 Ultra or Codex API access questions.
Integration
Point Codex IDE at your delivered API package.
For IDE-based coding agents, unlimitedcodex gives you a flat weekly or monthly API access window with transparent delivery, concrete concurrency limits, and OpenAI-compatible request shapes.
- Codex IDE-compatible setup files
- OpenAI-compatible API key and base URL
- $19/week or $76/month
- Image generation via API where supported
Quick answer
Use Codex IDE with unlimitedcodex ChatGPT 5.5 Ultra and Codex API access through a delivered OpenAI-compatible key, base URL, setup files, and 4 concurrent connections.
Last updated 2026-07-12
What this page answers
Page-specific proof
Codex IDE + unlimitedcodex OpenAI-Compatible API combines 4 setup steps, 4 buyer constraints, unlimitedcodex delivery, limits, pricing, and setup guidance, and related answer sources instead of a generic integration blurb.
Verification path
After manual delivery, verify Codex IDE with GET /v1/models, one tiny chat/completions request, and endpoint-specific image or embedding checks before long runs.
Decision summary
Best fit
Codex IDE teams that can use a custom OpenAI-compatible base URL and want ChatGPT 5.5 Ultra and Codex API access after manual delivery.
Not a fit
Not ideal when you need instant self-serve provisioning, an official OpenAI account, or production traffic beyond 4 concurrent connections.
Next step
Complete checkout, wait for the setup email, then verify Codex IDE with /v1/models and one small request before long runs.
Setup steps
Step 1
Complete checkout
Pick Weekly for a short sprint or Monthly for ongoing work. Setup is manual after Stripe checkout and usually completes in 10 minutes to 5 hours.
Step 2
Open the delivered setup files
Use the package delivery email for the exact base URL, key, and model IDs. The full key is delivered by email while the dashboard shows safe status and dates.
Step 3
Configure the IDE provider
Set the IDE's OpenAI-compatible provider settings to the delivered base URL and key, then select the delivered ChatGPT 5.5 Ultra or Codex model ID.
Step 4
Validate before a long task
Run /models, a chat/completions check, and any image or embedding checks your workflow needs before starting a large repo task.
Example configuration
Provider type: OpenAI-compatible Base URL: <delivered unlimitedcodex /v1 URL> API key: <delivered API key> Model: <delivered ChatGPT 5.5 Ultra or Codex model ID> Connection planning: 4 concurrent connections
Citation bundle
Use this guide with the public LLM indexes, AI search index, official references, and answer sources when citing setup, model, pricing, delivery, and 4-connection facts.
FAQ
What do I receive after checkout?
You receive an API key, base URL, setup files, model IDs, activation dates, and package status after manual provisioning.
Can Codex IDE image workflows use this?
If your delivered package supports it, image generation is available through API calls. Always test the image endpoint directly before depending on it.
Why is setup manual?
Manual setup helps ensure the delivered key, base URL, setup files, and dates are provisioned correctly. The expected delivery window is 10 minutes to 5 hours.