Biolink Health — Your health story, finally connected
Private health intelligence

Your health story,
finally connected.

Biolink brings your wearables, labs, meals, medications, and notes into one private timeline — on hardware you own, with AI that actually knows you.

Get started See how it works
Self-hosted in ~10 minutes · LAN-only by default · Your data never leaves
82
READINESS
Balanced

Your HRV is trending up and resting heart rate is low. A good morning to train — keep effort in zone 2.

HRV
48 ms
RESTING HR
54 bpm
SLEEP
7h 24m
LAST NIGHT Sleep 76
7h 24m
TODAY
07:40Breakfast logged · 620 kcal
12:05Magnesium · 400 mg
18:30Zone 2 run · 42 min
Why Biolink exists

Your body writes a story every day.
Nobody is reading it.

Your doctor sees you for fifteen minutes a year. Your ring, your labs, your meals, and your notes each hold a chapter — scattered across apps that never talk. The full story only exists when someone connects it. Biolink is that someone, and it works for you alone.

The problem

Seven apps.
Zero context.

Every source holds a fragment of you. None of them see the whole — and none of them are there when your doctor asks, “when did this start?”

01
Fragmented
Each app is a silo with its own account, its own charts, its own version of you.
02
Unreadable
Lab PDFs, CSV exports, portal logins — data you technically own but can't actually use.
03
Forgotten
Symptoms fade from memory long before the appointment where they mattered.
SLEEP RING
Readiness 82
LAB PORTAL
Ferritin 31 LOW
NOTES APP
“headache again, 3pm”
NUTRITION APP
1,606 kcal
PHONE HEALTH
8,412 steps
PILL BOTTLE
Vitamin D — did I take it?
The connection

One timeline. Every signal.

Every source flows into a single, continuously evolving timeline — deduplicated, reconciled across sources, and entirely yours.

Meal
Supplement / Medication
Hydration
Journal & Mood
Activity
YOUR TIMELINE · TUESDAY Live
08:15Levothyroxine · 50 µg, fasted
10:20Water · 750 ml · on track
13:10Lunch · salmon bowl · 640 kcal
15:00“Mild headache, left side”
18:30Zone 2 run · 42 min · avg 132 bpm
Pattern noticed: headaches cluster on days you skip lunch protein. Worth watching.
Core capabilities

Everything your health generates, working together.

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Private by design

A vault,
not an account.

There is no signup, no cloud handshake, no company database with your name in it. Your health data lives encrypted on a node you own — and privacy is enforced by code, not policy prose.

Encrypted at rest, fail-closed — the node refuses to store your health data as plaintext.
LAN-only by default — one published port; pairing and admin never leave your network.
Per-device pairing — your phone connects with a QR-scanned device token, not a password.
Deny-by-default egress — every outbound request passes a logged, allow-listed gate. Health data is refused at the door.
YOUR HOME NETWORK
Biolink
Your Private Node
PI 5 · UBUNTU · DGX SPARK
ONLINE
ENCRYPTED VAULT
2.4 yrs of history
LOCAL AI
On-node inference
ONE PORT
:8787 · LAN only
PAIRED DEVICES
2 · QR tokens
📱 Your phone DEVICE TOKEN
THE CLOUD Your health data never crosses this line.
Doctor Visit Brief
LAST 30 DAYS · PAGE 1/1
KEY CHANGES
Resting HR down 4 bpm since starting evening walks [1]
Sleep latency doubled in weeks with caffeine after 2pm [2]
Headaches ×6 — clustered on low-protein days [3]
CURRENT MEDICATIONS & SUPPLEMENTS
Levothyroxine 50 µg (daily, fasted) · Magnesium glycinate 400 mg (22 of 30 nights) · Vitamin D3 2000 IU (irregular)
FLAGGED FOR DISCUSSION
Ferritin 31 ng/mL (Mar 12) with rising fatigue scores — retest recommended by your last panel's reference range.
[1] Wearable RHR, 30-day series [2] Sleep onset vs. logged caffeine [3] Journal × nutrition correlation, n=30d · NOT MEDICAL ADVICE
Doctor visit briefs

Impossible to dismiss at your next appointment.

Thirty days of evidence, distilled to one page. Every claim cites the data behind it — so the conversation starts from facts, not fifteen minutes of trying to remember.

Every draft passes a deterministic safety gate — no invented numbers, no implied diagnoses, no fabricated citations. Generated on your node, printed from your browser, handed across the desk.

AI conversations

Ask about your body. Get answers grounded in your data.

Not a chatbot with generic wellness tips — a coach that has actually read your sleep, recovery, nutrition, and journal. It cites what it knows, and says so when it doesn't.

Inference runs locally by default. Want a frontier model? Connect your own Claude or ChatGPT — it reads through a scoped, revocable connection you control. Biolink is never the pipe that ships your health data to a cloud.

Biolink Coach LOCAL MODEL · NO CLOUD
Why has my sleep been rough this week?
Three of your four short nights followed workouts that ended after 8 pm — your HRV also dipped those nights (41 vs. your 48 avg). You slept normally on rest days. Try moving hard sessions before 6 pm this week and let's compare.
YOUR SLEEP · 7D YOUR HRV · 7D WORKOUT LOG
Is that backed by research?
Evening vigorous exercise is associated with longer sleep onset in several controlled studies — though effects vary by person, and your own data agrees. I only cite evidence I've actually retrieved.
PUBMED · 2 SOURCES
Pattern discovery

Patterns you'd never catch on your own.

A deterministic correlation engine runs over your whole timeline — same data, same finding, every time. No black box, no guesswork.

SUPPLEMENT → SLEEPr = 0.61
Magnesium nights → deep sleep +18%
62 NIGHTS · 41 WITH / 21 WITHOUT
CAFFEINE → HRVr = −0.48
Caffeine after 2pm → overnight HRV −9 ms
90 DAYS · LOGGED INTAKE × WEARABLE
TRAINING → MOODr = 0.54
Zone 2 days → next-day mood +1.2 pts
JOURNAL MOOD × WORKOUT LOG · 90D
How it works

Three steps. Ten minutes.

1
Set up your node

One command on a Raspberry Pi 5, any Ubuntu machine, or a DGX Spark. No Docker knowledge required.

$ ./install.sh
2
Pair your phone

Scan a QR code once. Phone health data flows straight to your node — no export files, no cloud relay.

PAIRED IN ~20 SECONDS
3
Connect your sources

Link your wearables — Oura, Whoop, Garmin, Fitbit and more. The timeline starts building itself.

OURA WHOOP GARMIN FITBIT +4 MORE
Trust & safety

Where your data lives. Whether it ever leaves.

The whole privacy model, in one honest table.

WHATWHERE IT LIVESEVER LEAVES?
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Every AI-written report passes a deterministic safety gate — no invented numbers, no implied diagnoses, no fabricated citations — and carries a not-medical-advice notice. When data is missing, the coach says so.
FAQ

Fair questions,
straight answers.

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Get started

The private health timeline between doctor visits.

Free to run on your own hardware. Your data, your node, your story.

Join the waitlist PRIVATE BETA · INVITES SOON