Use Healthier with ChatGPT and Muse

Two different things. The Healthier app inside ChatGPT is live: it can build nutrition plan options and export a confirmed plan into Healthier onboarding. The Muse connector is submitted and waiting for approval. Until Meta approves it, Muse will not offer Healthier as a connected app, even though the documentation below describes how that connector is built.

Numbers are estimates for general wellness in adults 18 and over. Healthier does not give medical, medication, or diagnostic advice. See the Terms and the Privacy Policy.

ChatGPT, live

In ChatGPT, look for the Healthier app. It creates baseline calorie, macro and micronutrient options for a goal such as weight loss, maintenance, muscle gain or general health. You pick and personalize a plan, then export the confirmed plan and profile into Healthier onboarding. Baseline options are estimates, not a prescription.

• Ask for calorie and macro options for a goal.
• Choose a plan and add age, sex, measurements and activity.
• Export the confirmed plan into the Healthier app. Sign in there with the same account when the app asks.

Muse, submitted

Status: submitted to Muse, not yet approved. Do not describe Healthier as an available Muse connector until that approval is public.

The connector, once approved, is named Healthier. It is an existing MCP server. The hosted endpoint is https://mcp.gethealthier.ai/mcp/muse. Sign-in is Google or Apple, the same account as the Healthier app.

How a Muse connection is designed to work

1. In Muse, add the Healthier connector, when it is listed.
2. Ask something that does not need an account, such as a calorie estimate for a described meal.
3. When you want to save a meal, save a workout, or read your day, Muse asks you to sign in.

What the Muse connector is built to do

• A calorie and macro target from sex, age, height, weight, activity and a goal. It is not saved until you ask. Not for pregnancy, breastfeeding, or anyone under 18.
• A meal estimate from a description or a photo. Nothing is saved until you say to log it.
• Log a meal into your Healthier diary.
• Log a workout you already did. A training plan that stays in the chat is not saved as a completed workout.
• Read today or another day: meals, the target, what is left, workouts, and steps when a phone or watch has synced them.
• A link to the Healthier app, which can carry a target so the app opens ready.

Sign-in

Estimates do not need an account. Saving and reading your own data does. You can cancel on the sign-in page. You can disconnect Healthier in the assistant’s connector settings. Access lasts about an hour and can be refreshed for up to 90 days, until you disconnect or the sign-in expires.

Permissions

In product terms: read nutrition, write meals, write a profile target, read activity, write a workout. The technical scope names are nutrition:read, nutrition:write, profile:write, activity:read and activity:write. Rate limit: 120 requests a minute per signed-in user. Meal photos can be sent as an https URL or base64, up to about 3 MB.

If it does not connect

Confirm you are signing in with the Google or Apple account you use in the Healthier app. If Muse says Healthier is unavailable, the connector may still be waiting for approval, or it may be outside the countries Muse currently supports. Disconnect and connect again from the assistant’s settings if a session expires. Support: hello@gethealthier.ai.

What we keep

• A meal estimate is kept for up to 72 hours so “log that” does not make you describe it again. A calculated target is kept for up to 7 days so it can be saved or sent to the app. These are not an account.
• Saved meals, workouts and targets are written to your Healthier account and show up in the app.
• We receive the details the assistant sends for that request, such as a meal description or photo, body metrics, a goal, or a workout. We do not read the rest of the conversation.
• Photos are used for that estimate and are not stored.

For developers

Remote MCP, Streamable HTTP. Muse endpoint: https://mcp.gethealthier.ai/mcp/muse. The same tools are also at https://mcp.gethealthier.ai/mcp. Clients that sign in first can use https://mcp.gethealthier.ai/mcp/muse/connected, which answers 401 until there is a token. OAuth 2.1 with PKCE S256. Discovery: https://mcp.gethealthier.ai/.well-known/oauth-protected-resource and https://mcp.gethealthier.ai/.well-known/oauth-authorization-server.

Questions