Protect what
matters most,
with just a tap.
Knock ID is an NFC-enabled medical ID card that gives first responders instant access to your critical health information. No app required, no delay, no friction.
Health Information, Instantly Accessible
In a medical emergency, access to accurate information can make a critical difference. Knock ID is an NFC-enabled medical ID card that allows first responders to view your medical profile instantly using any smartphone.
Details such as medications, allergies, and emergency contacts can be updated online at any time to ensure accuracy. Knock ID is designed for individuals who may need support communicating in an emergency, including children, seniors, and those with medical conditions.
Built for everyone who needs it most
Peace of mind for every parent
Attach a Knock ID to your child's backpack or jacket. Teachers, coaches, and first responders can instantly access allergy and emergency contact information.
Independent living, safely
For older adults with complex medication regimens or cognitive challenges, Knock ID ensures caregivers always have accurate, up-to-date health information.
Your conditions, communicated instantly
Diabetes, epilepsy, severe allergies, cardiac conditions. Whatever you manage, Knock ID puts that information in front of responders before it is too late.
Privacy, Security, and Peace of Mind
Privacy Controls
Take full control of your medical information. Customize your profile to decide which details are public or private, and easily add, remove, or update information at any time. You have complete authority over your medical data.
Rapid Emergency Access
In an emergency, first responders can instantly access your medical profile, delivering critical life-saving information within seconds. This rapid access enhances the speed and quality of care when it matters most.
Peace of Mind for Families
Give your loved ones the gift of safety. Whether for children, seniors, or individuals with disabilities, Knock ID ensures their medical needs are communicated effortlessly, without carrying physical documents.
See exactly what responders see
Our demo profile shows the full experience. The same clean, instant view that appears when your card is tapped in a real emergency.
View demo profileFrom purchase to protection in minutes
Purchase your card
Order online and receive a pre-activated Knock ID card. No setup required. It arrives ready to use.
Build your medical profile
Log in to your account and fill in your allergies, medications, blood type, emergency contacts, and more.
Carry it everywhere
Keep it in your wallet, on a lanyard, or attached to your bag. Your profile is always up to date online.
One tap in an emergency
First responders tap any smartphone to your card and instantly see your full medical profile. No app needed.
Common questions
No app required. Any modern iPhone or Android smartphone can read the NFC chip built into the card, the same way contactless payments work.
Yes. Your digital profile is hosted online and you can update it anytime via your Knock ID account. Changes are reflected immediately when the card is tapped.
Allergies, medications, medical conditions, blood type, emergency contacts, physician details, insurance information, and any custom notes you choose to add.
Your profile uses encrypted storage and you control exactly which fields are visible to the public. Personal identifiers and sensitive data can be kept private.
Every Knock ID card includes a QR code on the back that can be scanned with any smartphone camera. No NFC support needed.