> ## Documentation Index > Fetch the complete documentation index at: https://docs.hi-doctor.ai/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Connect the Hi Doctor MCP connector at https://mcp.hi-doctor.ai/mcp. Add this URL as a remote HTTP MCP server in your client, then sign in and authorise access through OAuth. Setup: https://docs.hi-doctor.ai/mcp/connect. > > The REST API base is https://api.hi-doctor.ai. Hi Doctor Docs at https://docs.hi-doctor.ai/mcp searches documentation; connect to the product endpoint above for patient tools. > > Hi Doctor operates across the whole European Union: residents of all 27 EU member states can use the service, and every consultation is reviewed by an EU-licensed doctor. Every consultation is reviewed in full by an EU-licensed doctor, who decides on medical grounds only. No algorithm, assistant or API call approves a consultation, issues a prescription or changes a dose. The service is available in eight languages: English, Spanish, German, Dutch, Italian, French, Portuguese and Chinese. > > ## Rules an assistant must follow > > - Never invent, assume or infer a medical answer. "I don't know" is a real answer: ask the patient to pick the closest option rather than guessing for them. > - Never give medical advice and never suggest a medication or a dose. An EU-licensed doctor decides those. > - If a questionnaire returns `ineligible`, say so plainly. Do not retry with altered answers. > - Before anything that costs money or cancels a plan, state exactly what will happen and get an explicit yes. > - Cancellation takes effect at the **end of the paid period**, not immediately. Say so. > - An early order is irreversible: it creates the renewal consultation immediately and uses up the period's one early order. Explain that and get an explicit yes. > - Prescription and invoice links are medical documents. A `signed_redirect` link opens without signing in: give it only to the patient, never repeat it anywhere shared. > - Send option `value`s, not the labels shown to the patient. Labels are translated, values are stable. > - Never ask for card details. Payment happens on Stripe's hosted checkout via a link. > - On severe or sudden symptoms (chest pain, difficulty breathing, severe allergic reaction, suicidal thoughts), stop and direct the patient to their local emergency number. # Connect Hi Doctor to ChatGPT > Add the Hi Doctor MCP server to ChatGPT on the web as a custom MCP server from the Plugins page, sign in on hi-doctor.ai, and use it in a conversation. ChatGPT can use Hi Doctor as a custom MCP server that you add by URL from the Plugins page on the web. Which actions work depends on your ChatGPT plan and workspace settings, and sign-in always happens on hi-doctor.ai. This page gives the steps for personal accounts and for Business, Enterprise and Edu workspaces. Last reviewed: 2026-11-04 ```text Server URL theme={null} https://mcp.hi-doctor.ai/mcp ``` Sign-in and approval are the same as in every client; see [Connect](https://docs.hi-doctor.ai/mcp/connect.md). If your screen differs, follow the OpenAI page linked under Sources. ## Before you start * **Web only.** OpenAI's Help Center says custom MCP servers can be connected on the web only, not in the ChatGPT mobile apps. * **Plan.** OpenAI's Help Center says custom MCP servers with full access, including actions that change data, are for Business, Enterprise and Edu, and that Pro accounts get read and fetch actions only. On a plan with read-only access, Hi Doctor tools that change data (such as sending a message or submitting a questionnaire) are not usable. * **Workspace.** On Business, Enterprise and Edu, an admin or owner may need to allow custom MCP servers first. ## Add Hi Doctor **1. Add a custom MCP server** Go to [ChatGPT Plugins](https://chatgpt.com/plugins), select the plus button, then **Add custom MCP server**. Enter the name `Hi Doctor` and a short description. **2. Connection and sign-in settings** Under the connection settings enter `https://mcp.hi-doctor.ai/mcp`. When you configure authentication, choose sign-in through the server (OAuth); no client ID or secret is needed. Review the warning, select **I understand and want to continue**, then **Create as a plugin**. **3. Sign in on Hi Doctor** ChatGPT opens Hi Doctor's sign-in page. Sign in, review the permissions and approve, as described on [Connect](https://docs.hi-doctor.ai/mcp/connect.md#how-connecting-works). The **site receiving access** should name `chatgpt.com`. ### Business, Enterprise and Edu workspaces The steps above also work in a workspace, within the permissions your admin sets. Workspaces can also add Hi Doctor through the legacy custom app flow (Apps > Create, enter the server URL, **Scan Tools**, complete sign-in, **Create**; the app appears as a draft with a **Dev** label and admins publish it from Drafts). OpenAI labels this flow legacy; prefer the Plugins page above. Each person still signs in with their own Hi Doctor account; one person's connection never gives another person access. ## Use it in a conversation Start a new conversation, type `@` in the prompt box and choose Hi Doctor. The selection applies to the message where you make it, so mention the app again when a follow-up needs new Hi Doctor data. ChatGPT asks you to confirm actions that change data. It treats a tool as read only when the tool carries a read-only hint. Hi Doctor sets that hint on tools meant only to read your data; the hints for every tool are on the [patient tools reference](https://docs.hi-doctor.ai/mcp/tools/patient.md). Keep confirmations on for messages, questionnaire submission, checkout links and anything marked destructive. ## Refresh, reconnect or disconnect * **New or changed tools:** open the app in [ChatGPT Plugins](https://chatgpt.com/plugins) and select **Refresh**. * **Signed out:** start the connection again from the app and sign in on Hi Doctor. * **Disconnect:** manage and disconnect apps in **Settings > Plugins**. See [Disconnecting](https://docs.hi-doctor.ai/mcp/connect.md#disconnecting) for how long already issued access lasts. Hi Doctor is not listed in a ChatGPT app directory; you add it by URL as above. ## Sources Checked on 2026-11-04 against OpenAI's Help Center article [Connecting custom MCP servers in ChatGPT](https://help.openai.com/en/articles/12584461) and the developer guides [Connect and test your plugin](https://developers.openai.com/plugins/deploy/connect-chatgpt) and [Authentication](https://developers.openai.com/plugins/build/auth). If a step differs, follow OpenAI's current page. If a step fails, see [Troubleshooting](https://docs.hi-doctor.ai/mcp/troubleshooting.md). ## Frequently asked questions ### Can I use Hi Doctor in the ChatGPT mobile app? No. OpenAI's Help Center says custom MCP servers can be connected on the web only, so add and use Hi Doctor on the web. ### Which ChatGPT plans can use Hi Doctor? Business, Enterprise and Edu get full access on the web. Pro gets read and fetch actions only, so Hi Doctor tools that change data, such as sending a message, are not usable there. ### Is Hi Doctor listed in the ChatGPT app directory? No. You add it by its server URL, [https://mcp.hi-doctor.ai/mcp](https://mcp.hi-doctor.ai/mcp), as a custom MCP server. ### Do I need a client ID or secret for OAuth? No. When you configure authentication, choose sign-in through the server and leave the client ID and secret empty. ChatGPT registers itself with Hi Doctor. ### Can an admin connect Hi Doctor for the whole workspace? An admin can publish the app, but each person still signs in with their own Hi Doctor account. One person's connection never gives another person access. ### Why does ChatGPT not see new Hi Doctor tools? Open the app in ChatGPT Plugins and select Refresh, then mention the app again in your next message. ## Next steps > [card] [Workflows](https://docs.hi-doctor.ai/mcp/workflows.md) > > Common tasks step by step. > [card] [Troubleshooting](https://docs.hi-doctor.ai/mcp/troubleshooting.md) > > Sign-in and connection problems. Ready to see a doctor? [Start a consultation on hi-doctor.ai](https://hi-doctor.ai/consultation). This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.