[建议 / Feature] 支持第三方模型 Provider 的 OAuth 登录(如 OpenAI「Sign in with ChatGPT」/ Codex 订阅)/ OAuth sign-in for third-party model providers
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Description
提交前确认 · Pre-submission checklist
- 我已搜索过现有 issue,确认这不是重复提议 / I searched existing issues and confirmed this isn't a duplicate.
- 我已阅读 CONTRIBUTING.md / I've read CONTRIBUTING.md.
问题类别 · Category
账号 / 登录 · Account / Login
涉及的 Agent 框架 · Agent framework
Codex
使用场景 · Use case
中文: 我订阅了 ChatGPT(Plus/Pro),日常使用 Codex 模型写代码。在 ZCode 中,第三方自定义 Provider 只支持「API Key + baseURL」(anthropic / openai-compatible 两种 kind)。想在 ZCode 里用 GPT 系模型,就必须另外购买按 token 计费的 OpenAI API key,我的 ChatGPT 订阅完全用不上。目前唯一能利用订阅的方式是把 codex mcp-server 挂成 MCP 服务器、通过 MCP 工具委派任务——模型不会出现在模型选择器里,交互隔了一层,体验不理想。
English: I have a ChatGPT Plus/Pro subscription and use Codex models daily. In ZCode, third-party custom providers only support API key + baseURL (kinds: anthropic / openai-compatible). To use GPT-family models in ZCode I must buy a separate per-token OpenAI API key — my ChatGPT subscription can't be used at all. The only way to leverage the subscription today is wiring codex mcp-server as an MCP server and delegating via MCP tools: the model never shows up in the model picker and the interaction is indirect.
建议方案 · Proposal
中文: 为第三方模型 Provider 增加 OAuth 登录能力,优先支持 OpenAI 的「Sign in with ChatGPT」(用 ChatGPT Plus/Pro 订阅授权,免 API key,解锁 gpt-5.x-codex 系列模型)。可参考 opencode 的实现:/connect → OpenAI → 「ChatGPT Plus/Pro」浏览器 OAuth 流程(文档:https://opencode.ai/docs/providers/ )。ZCode 已经具备 OAuth 基础设施(Z.ai / BigModel 登录在用,credentials 中已有 oauth:* 机制),建议将这套机制扩展到第三方 Provider。
English: Add OAuth sign-in for third-party model providers, starting with OpenAI "Sign in with ChatGPT" (ChatGPT Plus/Pro subscription authorization, no API key, unlocking the gpt-5.x-codex model family). Reference implementation: opencode's /connect → OpenAI → "ChatGPT Plus/Pro" browser OAuth flow (docs: https://opencode.ai/docs/providers/ ). ZCode already has OAuth infrastructure (used for Z.ai / BigModel logins, with an oauth:* mechanism in credentials) — extending it to third-party providers would be a natural evolution.
预期价值 · Expected value
中文: ChatGPT 订阅用户可以在 ZCode 模型选择器中直接使用 Codex 模型,无需另购按 token 计费的 API key(避免双重付费);与 opencode 形成功能对齐,降低用户迁移门槛。
English: ChatGPT subscribers could use Codex models natively in ZCode's model picker without buying a per-token API key (no double billing); feature parity with opencode lowers the switching barrier for their users.
你认为的优先级 · Your perceived priority
高 · High
你使用的 ZCode 版本 / 环境 · ZCode version / environment
Desktop v3.7.7 · Linux (Fedora 44, x64)
补充材料 · Additional context
- opencode 的同类功能现状:OpenAI 支持 OAuth 登录;但 Anthropic 禁止第三方客户端使用订阅登录,opencode 已在 1.3.0 移除 Claude Pro/Max 登录——说明每个 Provider 的条款需要逐一确认;OpenAI 目前允许第三方客户端使用该流程。
- 相关 issue:#233(OpenAI API 参数兼容性),说明已有用户通过 API key 方式接入 OpenAI。
- OpenAI Codex MCP Server 文档(当前的 workaround 方案):https://developers.openai.com/codex/mcp
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing CONTRIBUTING.md and the existing Z.ai/BigModel OAuth infrastructure, especially the credentials oauth:* mechanism. Compare it with the referenced opencode OpenAI flow; done means third-party provider OAuth can be completed and the authorized models appear in ZCode’s model picker.
Written by the indexing model from the issue text.
Assessment
- Domain
- authentication
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100