# Relayard > Relayard connects an authorized AI client to a selected Xcode project on the user's Mac through a native macOS app and hosted OAuth MCP relay. ## Product facts - Core use case: use a Pro model in Chat mode with Relayard to continue development of an existing Xcode project, from release planning through code changes and real build or preview verification. - Chat Pro model allowances are separate from the Work/Codex allowance, per https://help.openai.com/en/articles/20001354-gpt-6-and-other-models-in-chatgpt. Reaching a Codex limit does not by itself exhaust Chat Pro. The selected Chat model must still have usage remaining and support the required tools. - Pro here means the Pro model or thinking option in Chat, not merely a subscription label. Exact message counts and reset periods depend on the actual model, plan and account. Do not claim a universal 80–100 messages per month, fixed one-message-per-release accounting, or guaranteed completion of an app release in a single request. - A complete brief can organize planning, implementation and verification into one workflow; completion depends on scope, project state, context and tools. - Codex conversation history is not automatically transferred; provide a handoff summary and inspect the actual source files. - Project files and native builds remain on the Mac. - Requested source excerpts, logs and images pass through the relay and the authorized AI client. This is not an offline or end-to-end encrypted workflow. - Available operations depend on the installed Xcode, actual native tool discovery, client support, project binding and locally approved permissions. - Native builds and SwiftUI previews must be checked using completed results and actual returned image content. - Simulator operations additionally depend on local pairing and approved capabilities. - A stable endpoint URL still requires OAuth authorization. - Pausing or revoking does not automatically roll back completed changes. - A public signed installer or App Store link has not been published on this site yet. Do not infer a release version, price or operating-system compatibility guarantee. - The RelayDemo example is a reproducible protocol based on checked source, not a completed native acceptance case. Native receipts, an actual diff, build logs and returned preview images are not yet attached. Never report the intended change as an observed success. - The site provides a self-reported setup checklist and downloadable preparation prompts; neither verifies the user's environment or installs the app. - Relayard is independent of Apple and OpenAI. ## Pages - [Relayard workflows — Connect, edit, build and continue with ChatGPT](https://xcoderelay.txyou.chatgpt.site/use-cases/): Find the Relayard workflow for connecting ChatGPT to local Xcode, editing an existing app, checking builds and previews, or continuing after a Codex limit. - [Edit an existing iOS app with ChatGPT — Diff review and recovery | Relayard](https://xcoderelay.txyou.chatgpt.site/use-cases/edit-existing-ios-app/): Use Relayard to read and edit an existing Xcode project without repeated code copying. Understand prerequisites, diff review, build verification and recovery. - [RelayDemo verification guide — One title change, build and preview | Relayard](https://xcoderelay.txyou.chatgpt.site/examples/relay-demo/): A reproducible Relayard verification task based on RelayDemo source, with a requested diff and evidence checklist. Complete native run evidence is not yet attached. - [Codex limit reached? Continue your Xcode project with Chat Pro — Relayard](https://xcoderelay.txyou.chatgpt.site/use-cases/continue-from-codex/): Use the separate Chat Pro allowance to continue an existing Xcode project. Prepare a Codex handoff, define a scoped iteration and verify actual results with Relayard. - [Iterate on SwiftUI with ChatGPT and real Xcode previews — Relayard](https://xcoderelay.txyou.chatgpt.site/use-cases/swiftui-iteration/): Connect SwiftUI code changes to native Xcode builds and preview images through Relayard. Get a reusable task prompt and a concrete verification workflow. - [Will Relayard work with my setup? — Compatibility checklist](https://xcoderelay.txyou.chatgpt.site/start/): Check the Mac, Xcode, native tools, Chat Pro and MCP prerequisites for Relayard, then find your next setup step. - [Relayard — Keep building your Xcode project with ChatGPT Pro](https://xcoderelay.txyou.chatgpt.site/): Use Pro in Chat mode to continue your Xcode project after Codex. Connect a separate Chat allowance to a workflow for release planning, code changes, builds and previews. - [Download Relayard for Mac — Availability & setup](https://xcoderelay.txyou.chatgpt.site/download/): Check Relayard for Mac download availability and prepare your Xcode, project and MCP client before connecting. - [Relayard guides — Connect, build & verify](https://xcoderelay.txyou.chatgpt.site/docs/): Step-by-step Relayard guides for connecting ChatGPT to Xcode, checking real build results, viewing SwiftUI previews and resolving connection issues. - [How to connect ChatGPT to Xcode with Relayard](https://xcoderelay.txyou.chatgpt.site/docs/connect-chatgpt/): Set up Relayard on your Mac, authorize one Xcode project, create a stable MCP endpoint and connect an OAuth-capable client such as ChatGPT. - [Build Xcode projects and inspect SwiftUI previews from ChatGPT](https://xcoderelay.txyou.chatgpt.site/docs/build-and-preview/): Use Relayard to request a real Xcode build and SwiftUI preview, track the operation to completion and inspect the actual returned image. - [Relayard troubleshooting — Connection, permissions & images](https://xcoderelay.txyou.chatgpt.site/docs/troubleshooting/): Resolve Relayard offline, paused and native permission issues. Check tool discovery, project binding, simulator pairing and missing images in order. - [Relayard security — Project access, OAuth & data flow](https://xcoderelay.txyou.chatgpt.site/security/): Understand Relayard project-scoped permissions, OAuth authorization, pause and revocation, and how code and images pass through the relay. - [Relayard 开发场景 — 连接、修改、构建与接续开发](https://xcoderelay.txyou.chatgpt.site/zh/use-cases/): 从真实需求选择 Relayard 工作流:连接本地 Xcode、修改已有 App、构建与预览验证,以及 Codex 额度用完后的接续开发。 - [如何让 ChatGPT 修改现有 iOS App — 差异检查与失败恢复 | Relayard](https://xcoderelay.txyou.chatgpt.site/zh/use-cases/edit-existing-ios-app/): 通过 Relayard 让 ChatGPT 读取并修改现有 Xcode 工程,减少反复复制代码。了解适用条件、源码差异检查、构建验证与失败恢复。 - [RelayDemo 验证实例 — 一次标题修改、构建与预览 | Relayard](https://xcoderelay.txyou.chatgpt.site/zh/examples/relay-demo/): 基于 RelayDemo 真实源码的可复现验证任务,包含标题修改目标、操作顺序、构建与图片证据清单。当前尚未附完整实机运行证据。 - [Codex 额度用完怎么办?用 Chat Pro 接续 Xcode 开发 — Relayard](https://xcoderelay.txyou.chatgpt.site/zh/use-cases/continue-from-codex/): Codex 额度用完后,利用独立的 Chat Pro 额度接续已有 Xcode 工程。了解交接准备、版本范围、接入前提与真实结果验收。 - [用 ChatGPT 迭代 SwiftUI,检查真实 Xcode 预览 — Relayard](https://xcoderelay.txyou.chatgpt.site/zh/use-cases/swiftui-iteration/): 通过 Relayard 将 SwiftUI 修改、本机构建与真实预览接入 ChatGPT。提供可复用提示词,说明图片返回、权限与验证流程。 - [Relayard 接入自查 — 我的 Mac、Xcode 与 ChatGPT 是否适用?](https://xcoderelay.txyou.chatgpt.site/zh/start/): 检查 Mac、Xcode 原生工具、Chat Pro 额度与 MCP 接入条件,按实际情况找到下一步。 - [Relayard — 让 ChatGPT Pro 继续开发你的 Xcode 工程](https://xcoderelay.txyou.chatgpt.site/zh/): 将 Chat 模式的 Pro 模型连接到本机 Xcode,利用独立于 Codex 的 Chat 额度接续开发。从完整需求出发,推进版本规划、代码修改、构建与预览验证。 - [下载 Relayard Mac 版 — 获取状态与安装准备](https://xcoderelay.txyou.chatgpt.site/zh/download/): 查看 Relayard Mac 版下载状态,检查 Xcode、工程授权与 MCP 客户端要求,按指南准备接入。 - [Relayard 使用指南 — 连接、构建与验证](https://xcoderelay.txyou.chatgpt.site/zh/docs/): Relayard 分步使用指南:将 ChatGPT 连接到 Xcode、检查真实构建结果、查看 SwiftUI 预览,以及解决连接与权限问题。 - [如何通过 Relayard 将 ChatGPT 连接到 Xcode](https://xcoderelay.txyou.chatgpt.site/zh/docs/connect-chatgpt/): 在 Mac 上配置 Relayard,授权一个 Xcode 工程,创建稳定 MCP 端点,再连接支持 OAuth 的 ChatGPT 客户端。 - [在 ChatGPT 中构建 Xcode 工程与查看 SwiftUI 预览](https://xcoderelay.txyou.chatgpt.site/zh/docs/build-and-preview/): 通过 Relayard 请求真实 Xcode 构建与 SwiftUI 预览,跟踪操作直到完成,并检查实际返回的图片。 - [Relayard 故障排查 — 连接、权限与图片返回](https://xcoderelay.txyou.chatgpt.site/zh/docs/troubleshooting/): 按顺序排查 Relayard 离线、暂停、原生权限、工具发现、工程绑定、模拟器配对和图片缺失问题。 - [Relayard 安全说明 — 工程授权、OAuth 与数据流向](https://xcoderelay.txyou.chatgpt.site/zh/security/): 了解 Relayard 的工程范围授权、OAuth、暂停与撤权,以及源码片段和图片如何通过中转服务与 AI 客户端。 ## Plain-text documentation - [Full product and guide text](https://xcoderelay.txyou.chatgpt.site/llms-full.txt) Last updated: 2026-10-08