freddy is a personal health MCP server that bridges wearables, CGMs, power meters, and gym apps with AI agents like Claude, ChatGPT, and OpenClaw. Designed for athletes, biohackers, and anyone who tracks multiple health metrics, it transforms fragmented data into a single conversational interface that replaces scattered dashboards. Instead of toggling between Oura, WHOOP, and Garmin apps to piece together insights, users simply ask their AI questions like 'Why is my HRV tanking?' and get answers grounded in real, synced data from devices like Dexcom and Wahoo. freddy's core value is eliminating the gap between data collection and actionable insight, making health analytics as natural as talking to a coach, but with the depth of cross-source correlation that no single device app provides.
The modern athlete collects more signal than ever: sleep, HRV, glucose, power, lifts, and more from dedicated wearables and apps. Yet the apps that ship with these devices ask trivial questions like what you want for breakfast, while users are left staring at scattered scores and scores without understanding why. Three apps, twelve numbers, zero answers sums up the frustration: users open Oura to see a readiness score of 78, Dexcom showing 147 mg/dL with spikes, and Wahoo reporting FTP at 214 with a form of −18, but none tell you why your recovery is suffering. freddy solves this by consolidating data into an MCP server that any AI can query, turning fragmented metrics into coherent narratives that explain trends and anomalies.
The first major feature is freddy's ability to connect multiple sources via OAuth in a read-only, revocable, encrypted manner. Users can link Oura, WHOOP, Polar, Garmin, Dexcom, Wahoo, Hevy, Withings, Concept2, Intervals.icu, Suunto, and more with a single click, granting freddy access to over 100 metrics including HRV, glucose, sleep stages, and power output. This works because freddy is built as an MCP server, meaning it speaks the Model Context Protocol that AI agents understand natively. By pasting one MCP URL into Claude Desktop or ChatGPT, the AI gains the ability to query real-time and historical data. The benefit is elimination of manual data entry and dashboard hopping: the AI pulls exactly the numbers it needs, when it needs them, for a truly conversational analytics experience.
The second major feature is freddy's ability to perform cross-metric query and trend analysis. Once connected, users can ask questions like 'Why did I sleep like garbage last night?' and freddy responds with specific metric context: HRV dropped 18 ms below the 30-day baseline, resting HR up 7 bpm, with three wake events between 2 and 4 am. It can also detect trends, such as a 30-day HRV baseline drift from 56 to 49 ms alongside a 34% climb in training load, while total sleep remains unchanged but fragmentation is up 22%. This analysis is powered by freddy's access to data from 21 sources, enabling it to correlate sleep fragmentation, glucose spikes, and training fatigue in ways single-device apps cannot, providing answers that are both specific and contextual.
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freddy also offers a Recipe Book—a browsable library of starter prompts that demonstrate the power of cross-source analysis. Users can copy questions like 'Why has my HRV baseline dropped 7 ms this month?' and paste them into Claude or ChatGPT for immediate answers that combine data from multiple sources. The recipes cover recovery, trends, sleep, glucose, lifestyle, strength, and training optimization, providing a jumpstart for users who are new to conversational health analytics. Additionally, freddy supports unlimited sources on the Pro plan, enabling full-history cross-source analysis such as glucose versus sleep or load versus HRV. Early access to new connectors is included, ensuring users stay ahead of the latest wearable integrations and can request new sources from the dashboard.
freddy works in three simple steps: connect your sources, paste your MCP URL, and ask your AI anything. First, OAuth into your devices—read-only and revocable—so freddy can pull data like sleep stages, HRV, glucose, and lifts from providers such as Oura, WHOOP, and Dexcom. Second, copy your unique MCP URL from the freddy dashboard and paste it into any MCP-speaking AI client: Claude Desktop, ChatGPT, OpenClaw, Hermes, Notion AI, or your own custom agent. Third, start asking conversational questions; freddy serves the real numbers in real time, and the AI interprets them with full context. No app to install, no new login to remember. Data syncs in the background via scheduled pulls and provider webhooks, so it's always ready when your AI asks.
Concrete use cases include a steeplechase athlete analyzing 12 years of training history through Claude, uncovering trends invisible in individual dashboards. Another user monitors fitness by asking ChatGPT why their glucose spikes after certain meals, getting answers that combine Dexcom data with sleep and training load from Wahoo. A strength athlete identifies plateaued lifts by querying Hevy data cross-referenced with HRV trends from Oura. So-called 'lifestyle' questions like 'How does my HRV respond to alcohol, days after?' are answered by correlating drinking triggers with next-day metrics. The outcome is time saved—no more manual data compilation across apps—and insights that lead to informed decisions: adjusting training load when fatigue accumulates faster than readiness scores reflect, or correlating alcohol intake with lowered HRV.
freddy targets serious athletes, biohackers, coaches, early adopters, and anyone who tracks multiple health metrics and wants to extract insight without app-switching. It works with any MCP-speaking client: Claude Desktop and Web, ChatGPT via custom GPT or Connectors, Notion AI, OpenClaw, Hermes, and any agent you build yourself. The tech stack is a standalone MCP server hosted on Railway infrastructure operated by reThrive Labs LLC in the US, with encrypted storage and read-only tokens for each connected source. Pricing starts free forever: one connected source and seven days of history. For $19 per year (launch price), Pro offers unlimited sources, full history, cross-source analysis, and early access to new connectors. A lifetime Believer option costs $99 once. The takeaway: freddy transforms health data from silent noise into conversational answers, making personal analytics accessible and actionable.
Serious athletes optimizing training load, biohackers tracking multiple biomarkers like HRV and glucose, strength trainers correlating performance with recovery, coaches analyzing client data across devices, health enthusiasts who want to stop switching between Oura, WHOOP, Dexcom, and Garmin apps and instead get conversational answers from AI agents like Claude and ChatGPT. Also early adopters of MCP technology and anyone who has accumulated years of wearable data but lacks a unified view.