#450 · Primary category： AI Coding Assistants
opencode-openai-codex-auth
OAuth authentication plugin for personal coding assistance with ChatGPT Plus/Pro subscriptions - uses OpenAI's official authentication method
Project last updated：01/09/26
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Why we included this project
OpenCode users who already pay for ChatGPT Plus or Pro can skip per-token API credits entirely with this plugin. It runs OpenAI's official OAuth flow so OpenCode talks to the Codex backend using your existing subscription, then drops in ready-made presets for the GPT-5.x and Codex models with selectable reasoning levels. Setup is one npx command plus an auth login, and the plugin refreshes tokens and surfaces usage errors so long sessions don't quietly die. It's built for personal use rather than multi-user production, which matters if you're evaluating it for a team. For solo developers already on a ChatGPT plan, it's a straightforward way to get Codex-class help without a separate API budget.
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