Parameter vs Health MCP

Parameter is a workout app built around a simple idea: you already have a subscription to an AI that is a smarter coach than any fitness app's built-in one. Connect it once, and your AI plans your training using your goals, your equipment, and your real workout history, not a generic template. Parameter's job is to run what your AI writes and log it honestly: strength, intervals, classes, and rest, tracked on iPhone and on Apple Watch. In a chat with your AI, you can ask things like: - "Plan my week. I'm training for a 10K in six weeks and I lift Tuesdays and Thursdays." - "I tweaked my knee. Adjust today's session." - "Look at last month and tell me if my squat is actually progressing." Your AI reads your profile, equipment, and history to answer, then pushes a plan or an updated workout straight into Parameter. You never touch a template or a spreadsheet, and Parameter never writes a plan on its own. Parameter runs four kinds of training: guided classes you follow in another app, structured intervals with a live segment display and heart-rate-zone targets, exercise routines with a plate calculator and your last set shown before you lift, and simple sessions for a run, ride, or walk with indoor/outdoor tagging. Rest days get their own card, with active-recovery guidance, not an empty gap in your week. On many machines that support the Bluetooth FTMS profile, Parameter sends each segment's authored targets to the equipment. On heart-rate-zone segments it also closes a loop to hold your zone, correcting speed on a treadmill and power on an indoor bike. It never chases your heart rate with incline. Starting and stopping a machine is always yours. Every interval workout also prints as a numbered console table, so a machine with no Bluetooth at all is still a first-class way to train. Parameter's Apple Watch app works fully on its own, with its own sync, so a run or a lift is tracked wrist-only if that is all you bring. Whichever device starts a workout, the other shows the exact same execution screen, not just a status line, and pause, skip, end, and adjust all work from either wrist or phone. The Digital Crown adjusts your current target or your reps before you check off a set, and watch face complications and a Smart Stack card show what's next. $1 a month, with a two-week free trial, is the only thing Parameter charges for, and it covers only the AI connection. Planning, execution, history, and a full data export stay free whether you subscribe or not. There's no Parameter account: your workouts, profile, and history live in your own private iCloud, and Parameter runs no database of its own to store them in. Parameter works with any MCP-compatible AI client, including the assistants most people already subscribe to. Parameter requires an iPhone running iOS 17 or later. An Apple Watch is recommended for live heart rate and wrist execution, but not required. Having a plan written by your AI needs an MCP-compatible AI client; building and logging your own workouts by hand works with no AI client at all. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://parameterfit.com/legal/privacy-policy/

Connect your agents to Apple Health. Health MCP syncs an encrypted copy of your Apple Health data to the cloud, where an agent you approve can retrieve it and decrypt it in a trusted execution environment. Your private key never goes to the Health MCP service. RECENT DATA FIRST Launch your first sync and see when recent data is ready to use while older history continues loading. The Overview shows the available date range, data freshness, live progress, and sync history. Pause and resume without starting over. CONNECT THROUGH REMOTE MCP Add https://mcp.healthmcp.cc/mcp to a compatible agent, then approve its pairing code in the iPhone app. Direct integrations need code execution, privately configured secrets, and trusted decryption code. A chat-only client cannot decrypt your health records. The signed iPhone app includes exportable trusted helpers and a desktop connector. The desktop connector requires Node.js 22 or newer and an assistant that supports local stdio MCP. Both connection paths use the same encrypted cloud service. See the connection guide for setup requirements. CHOOSE WHAT TO SHARE Share readable heart, sleep, movement, body measurement, workout and activity data, plus daily summaries that merge overlapping sources. Nutrition, reproductive health, symptoms, audio exposure, ECG recordings and precise workout routes are optional and off by default. Available data depends on your devices, region and Apple Health permissions. YOUR PERMISSION, YOUR KEY Health values are encrypted on your iPhone before upload. Approve each client before it can access your encrypted cache. The agent you choose receives the records it decrypts, and that provider's own privacy and retention policies apply. Revoke individual connections in Agents. Remove optional data, rotate your key or delete your Health MCP account and encrypted cache in Settings. Revocation stops future access; records an agent already received cannot be recalled. Apple Health remains the source of truth: Health MCP never writes to it. Health MCP will attempt background refreshes, but for the newest data, open the app occasionally and let it finish a sync. Background sync and push notifications depend on iOS. A large first backfill works best with the app open and a good connection. V1 includes up to 2 GiB and 500,000 encrypted objects per account. No advertising or tracking SDKs. No account password to remember. Health MCP is a data connection tool and does not provide diagnosis or treatment. Connection guide: https://healthmcp.cc/connect Privacy policy: https://healthmcp.cc/privacy Support: support@healthmcp.cc Privacy and deletion requests: privacy@healthmcp.cc