What this actually does
Out of the box, Claude cannot see your Apple Health data. It has no access to your iPhone, your Apple Watch, or the HealthKit vault where that data lives. If you paste a screenshot of last night's sleep, it can read that one image, but it has no memory of your history and no way to pull a trend.
MCP changes that. The Model Context Protocol is an open standard that lets Claude connect to an outside data source through a consistent interface, the way a USB-C port lets any device plug into one socket. When a service runs an MCP server over your health data, Claude can request rows from it during a conversation and reason over real numbers instead of guessing.
Wellness Project runs exactly that server. Your Apple Health data syncs into Wellness Project over HealthKit, and the MCP server exposes that synced history to Claude with read-only access. The result is a normal Claude chat that can answer questions about your actual steps, sleep, workouts, and HRV.
How to connect it
Three pieces have to line up: your Apple Health data has to reach Wellness Project, the MCP server has to be added to Claude, and then you ask. Each step takes about a minute.
Understand what MCP is doing
MCP is the standard that lets Claude talk to an outside data source. You are not pasting data into the chat or training a model on it. You are pointing Claude at a server that already holds your synced history and letting it read the specific rows it needs, when it needs them. Nothing is copied in bulk.
Sync Apple Health into Wellness Project
Install Wellness Project on your iPhone and grant Apple Health read access in settings. It reads steps, sleep, resting heart rate, and HRV over HealthKit from your iPhone and Apple Watch. This builds the history the MCP server will later expose. No manual export, no screenshots.
Add the MCP server to Claude
In your account settings, generate an API key and copy the Wellness Project MCP server URL. In Claude Desktop or claude.ai, add a connector with that URL and key. Both surfaces support remote MCP servers, so you add it once and it appears in every conversation on that surface.
Ask Claude about your data
Open a chat and ask. "How did my HRV trend this month?" "Did my sleep get worse on training days?" "What was my average resting heart rate last week?" Claude pulls the structured rows from the server and answers from your history rather than a single screenshot or a generic average.
What to ask once it is connected
The connection is only worth it if the questions get better, and they do. Because Claude reads interpreted history rather than today's isolated figure, the useful prompts are the ones that span time: patterns, baselines, and cause-and-effect across signals.
Ask how your resting heart rate moved across a training block. Ask whether your deep sleep tracks with your evening workouts. Ask Claude to flag the week your steps and HRV both dropped. Because the same server reads every device you have connected, those answers pull from Apple Health, Fitbit, Oura, and Health Connect together, so the picture is whole instead of split across apps that never compare notes.
Give Claude your real health history.
Sync Apple Health to Wellness Project, add the MCP server to Claude, and ask about your actual trends. Free during early access.