CodeI Lab

CodeI Lab provides a third-party API gateway for coding agents. It offers access to GPT models through OpenAI-compatible Responses and Chat Completions endpoints, as well as the Anthropic Messages API for Claude-compatible clients.

The service is intended for developers using Claude Code, Codex CLI, OpenCode, Cursor, and other OpenAI-compatible tools. Claude Code, Codex CLI, and OpenCode can be configured with one command, while other clients use the same base URL.

CodeI Lab sells discounted API credit rather than a ChatGPT subscription. Plans include a $3 weekly trial with $30 of API quota, a $9.90 monthly plan with $100 of quota, and larger plans; the site states that the Ultra plan provides $1,500 of included usage for $99.90. It identifies itself as an independent gateway not affiliated with OpenAI.

Highlights

• OpenAI-compatible Responses and Chat Completions APIs
• Anthropic Messages API compatibility
• One-command setup for Claude Code, Codex CLI, and OpenCode
• API credit plans with stated discounts versus official pay-as-you-go pricing
• Supports GPT-6 and GPT-5.6 model variants listed on the site