Codex
OpenAI Open-Source Coding Agent
A local coding agent from OpenAI that can understand codebases, modify files across projects, run commands, and debug issues in the terminal. Configure models and quotas centrally through Ace Data Cloud's OpenAI Responses-compatible API.
What Is Codex?
Codex is an open-source local coding agent from OpenAI that runs in your terminal. It is not simply a code-completion tool, but a true coding agent—you only need to describe the functionality you want in natural language, and Codex can understand the entire codebase, edit code across files, run commands in a sandbox, debug issues, and iterate until the task is complete.
Ace Data Cloud provides a low-cost OpenAI Responses-compatible proxy, allowing you to use Codex at less than half the official price. No fixed monthly subscription is required; pay by Token usage, with ample quotas, global availability, and ready-to-use setup after a single configuration.
Codex's Core Capabilities
More than just code completion—it is an agent that can understand, edit, execute, and deliver code
Codebase Understanding
Automatically analyzes project structure and dependencies, with no need to manually select context files. Just say "Explain this project's directory structure" to get a complete architectural overview.
Multi-File Editing
Performs precise edits across multiple files, rather than merely offering suggestions. Codex understands the relationships between code to ensure the correctness and consistency of changes.
Debugging and Fixes
Describe a bug or paste an error message, and Codex will identify the root cause and implement a fix. It can read logs, run tests, and iterate until the issue is resolved.
Command Execution
Runs Shell commands, tests, installs dependencies, and checks Git status in a controlled sandbox, enabling the Agent to truly complete end-to-end development tasks hands-on.
MCP Tool Integration
Supports the Model Context Protocol and can connect to AceData Cloud MCP tools such as Suno, Midjourney, and SERP, expanding Codex's capabilities.
Adjustable Reasoning Effort
Use model_reasoning_effort to switch between low / medium / high, allowing the model to think deeply and provide well-considered solutions when facing complex architectural decisions.
model_provider = "acedatacloud" [model_providers.acedatacloud] name = "acedatacloud" base_url = "https://api.acedata.cloud/v1" [model_providers.acedatacloud.auth] command = "sh" args = ["-c", "echo $ACEDATACLOUD_API_KEY"]
Complete setup in 3 minutes
Simply declare a custom Provider in the Codex configuration to connect Codex to AceData Cloud.
Get an API Token
Copy the API Key from the Ace Data Cloud app list and save it to the ACEDATACLOUD_API_KEY environment variable
Configure config.toml
Declare model_provider in ~/.codex/config.toml to point to the AceData Cloud proxy
Start coding
Run the codex command to enjoy full functionality at a lower cost
Codex CLI and tool extensions
Configure Codex through the terminal and connect MCP tools as needed
What can Codex do?
From everyday coding to large-scale refactoring—covering the entire software development lifecycle
Feature Development
Describe your requirements in natural language, and Codex automatically generates complete feature implementation code
Bug Fixes
Paste error logs or describe the issue to automatically identify the root cause and complete the fix
Code Review
Review code quality, security risks, and potential bugs, with recommendations for improvement
Code Refactoring
Large-scale renaming, module extraction, framework migration—refactor safely across files
Get Started in 3 Steps
From registration to using Codex, it takes less than 5 minutes
Register and Get a Token
Create a free account on Ace Data Cloud. Go to the OpenAI service page, click Acquire to obtain a Bearer Token, and receive free credits with your first application.
Configure config.toml
In ~/.codex/config.toml, declare the acedatacloud provider, API endpoint, and environment-variable authentication command—no fixed model required.
Start Coding
Run codex in the terminal and follow the CLI guide to complete the configuration.
Why Choose AceData Cloud?
Compared with official subscription plans, AceData Cloud offers comprehensive advantages in price, quota, and flexibility
| Comparison | AceData Cloud | Official Subscription |
|---|---|---|
| Billing Method | By Token Usage | Fixed Monthly Fee $20-$200 |
| Usage Limits | ✓ Ample Concurrent Quota | Fixed Plan Quota |
| Starting Price | Less Than 50% of Official Price | From $20 / Month |
| Speed Limits for Overage | ✓ No Speed Limits | ✗ Stops When Used Up |
| Available Worldwide | ✓ | Service Regions Subject to Official Availability |
| Registration Requirements | ✓ Ready to Use Immediately | ✗ Credit Card Required |
Codex Pricing
Transparent pay-as-you-go pricing. No subscription fees. No hidden charges. Pay only for actual Token usage.
Billed based on actual Token usage through an OpenAI Responses-compatible proxy, at less than half the official price
- ✓ GPT-5: flagship coding and reasoning capabilities
- ✓ GPT-5 mini / nano: low cost, high throughput
- ✓ Supports OpenAI Responses API
- ✓ Adjustable reasoning effort (low/medium/high)
- ✓ Free credits for first-time registration
- ✓ No monthly fees, no subscription
Dedicated plans for high-volume teams
- ✓ Volume discounts based on usage
- ✓ Priority technical support
- ✓ Dedicated account manager
- ✓ Custom rate limits
- ✓ SLA guarantee
Frequently Asked Questions
Everything you need to know about using Codex through AceData Cloud
What is the relationship between Codex and the OpenAI API? ▾
Codex is an open-source command-line programming Agent launched by OpenAI. It communicates with models through the OpenAI Responses API under the hood. AceData Cloud provides an OpenAI Responses-compatible proxy service. Codex can use our service by configuring a custom model_provider in ~/.codex/config.toml, with functionality fully identical to the official version.
What are the advantages of using it through AceData Cloud? ▾
Three major advantages: (1) Lower prices—charged based on Token usage, at less than half the official price, with no fixed monthly fee; (2) Ample quota—you will not encounter quota limit prompts as with official subscriptions, and there is no throttling even with frequent use; (3) Available globally—no matter which region you are in, you can use it reliably with low latency.
Which models are supported? ▾
Multiple models suitable for programming tasks are supported. The integration configuration does not require a fixed model; after starting Codex, you can use /model to view and switch among currently available models.
How do I configure Codex to use AceData Cloud? ▾
Declare model_provider = "acedatacloud" in ~/.codex/config.toml, set base_url = "https://api.acedata.cloud/v1", and use the provider's auth command to read ACEDATACLOUD_API_KEY. For detailed steps, please see the configuration tutorial.
Which platforms are supported? ▾
Coding Plan currently provides a Codex CLI configuration entry point, connecting to the OpenAI Responses-compatible interface through model_provider.
How can I verify that the configuration is working? ▾
After completing the configuration, run codex to enter the interactive interface, then type /model to check whether the current model and Provider are from acedatacloud. You can also view API call records and usage statistics in the Ace Data Cloud console to confirm that requests have been sent through the proxy.
Can it be used worldwide? ▾
Yes. AceData Cloud provides globally available access nodes, so no matter where you are, you can use Codex reliably with low latency. No VPN or overseas credit card is required—just sign up and start using it.
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Get Started with Codex Now
Enjoy OpenAI's open-source coding Agent at a lower cost through the AceData Cloud proxy. Pay as you go, no subscription fees, and complete setup in 3 minutes.