Codex for Open Source · Meetups · Hackathon Support · Forum · Discord · API Dashboard · Copy PageMore page actions · Copy PageMore page actions · Delegate to Codex in the cloud · Codex is OpenAI’s coding agent that can read, edit, and run code. It helps you build faster, fix bugs, and understand unfamiliar code.

Read community posts, explore meetups, and connect with Codex builders. See community · Apply or nominate maintainers for API credits, ChatGPT Pro with Codex, and selective Codex Security access.

Get building right away with queries, subscriptions and webhooks. Learn useful terminology and concepts for using the GraphQL API. ... Add the Codex docs MCP server to your AI coding tools so it can read the docs directly.

The Codex API offers real-time, enriched blockchain data for 70 million tokens & 700 million wallets on 80+ networks. get started · get started · Powering leading web3 platforms · Raw blockchain data can be complicated and labor-intensive ...

The Codex API offers real-time, enriched blockchain data for 76 million+ tokens on 80+ networks. Fast and accurate enriched data for token and prediction market prices, real-time charts, aggregated data, holders, and balances.

1 week ago - You can also use Codex with an API key, but this requires additional setup.

1 month ago - In this tutorial, you will learn how to add Codex models into your application for free using Puter.js. You can gain access to models such as GPT-5.3-Codex, GPT-5.2-Codex, GPT-5.1-Codex-Max, GPT-5.1-Codex, and GPT-5.1-Codex-Mini by OpenAI without needing an OpenAI developer account or API key.

Instead of traditional API endpoints, the current Codex is accessed through two primary interfaces: the ChatGPT web interface and the open-source Codex CLI tool.

A core feature of the One Codex Platform is that all of the raw results presented on the web platform are also available programmatically via the API. The API gives you a way to access the raw output data from One Codex without opening a web browser or clicking any links.

Welcome to the DPLA API Codex! This is where you can find authoritative documentation for the DPLA API and resources you can use to make the most of it. We’re happy to have you. (Wondering why we built an API in the first place? Check out our philosophy.) What now? If you’ve never played (or …

GPT-5-Codex is a version of GPT-5 optimized for agentic coding tasks in Codex or similar environments. It's available in the Responses API only and the underlying model snapshot will be regularly updated.

3 weeks ago - Codex is OpenAI’s coding agent for software development. It helps you write, review and debug code. Interact with Codex in a variety of interfaces: in your IDE, through the CLI, on web and mobile sites, or in your CI/CD pipelines with the SDK.

4 days ago - By the end of this tutorial, you will have a simple web application that utilizes OpenAI Codex to generate code snippets based on user input. The app will consist of a front-end interface for user interaction and a back-end server that communicates with the OpenAI API.

January 21, 2026 - Codex supports three authentication modes. account/updated.authMode shows the active mode, and account/read also reports it. API key (apikey) - the caller supplies an OpenAI API key and Codex stores it for API requests.

1 day ago - Create OpenAI API keys here. ... By default, the Codex SDK runs in the current working directory and requires a Git repository for safety.

February 5, 2026 - We are working to safely enable API access soon. With this update, we are also now running GPT‑5.3‑Codex 25% faster for Codex users, thanks to improvements in our infrastructure and inference stack, resulting in faster interactions and faster results.

This is useful when you access OpenAI models through an LLM proxy server. When requires_openai_auth = true, Codex ignores env_key. Environment variable authentication: Set env_key = "<ENV_VARIABLE_NAME>" to use a provider-specific API key from the local environment variable named <ENV_VARIABLE_NAME>.

February 3, 2026 - Once you downloaded and installed the Codex app, open it and sign in with your ChatGPT account or an OpenAI API key.

The first time you run Codex, you'll be prompted to sign in. Authenticate with your ChatGPT account or an API key.