What is KISSTag ?

KISSTag is a full-service platform that lets developers buy, provision and validate cryptographically-secure NFC tags that cannot be tampered with. Each activation instantly redirects the user to your website with a signed JWT, guaranteeing authenticity and integrity. No complex PKI, no bespoke hardware – simply tap → trust.

How it works ?

1. Purchase & Provision

Order pre-burned tags in our dashboard or via API. We inject unique cryptographic keys and link them to your project.

2. Integrate in Minutes

Specify the URL where your user needs to be redirected when a tag is tapped. No SDK is required – any HTTPS listener works.

3. Tap & Verify

When a user taps the tag, KISSTag validates the authenticity of the tag and redirect the user to your server with a signed JWT you can instantly trust.

JWT Payload Example

{
  iss=https://kisstag.com, 
  sub=0466598aff1890, 
  iat=1754252698, 
  exp=1754252713, 
  batch=8d05-0218f5650ffd, 
  counter=58, 
  request_id=OvvQKh3tliAEPqw=, 
  tag_is_authentic=true
}

Business Cases

Product Authentication

Prove that luxury goods, electronics or wine are genuine at point of sale or after delivery, discouraging counterfeits and returns fraud.

Limited Editions & Collectibles

Attach a verifiable identity to each item. Show provenance, edition number and ownership journey with every tap.

Event Tickets & Access

Validate entry with signed taps that can’t be duplicated. Manage check‑ins, re-entry rules and attendance analytics.

Warranty & Registration

Enable one‑tap product registration and warranty activation with cryptographic proof of activation and device identity.

Customer Engagement & Loyalty

Turn products and packaging into smart touchpoints. Deliver tailored content, redeem perks and track campaign impact.

Supply Chain Traceability

Log verified handoffs from factory to shelf. Surface origin and path to customers and partners before resale.

Smart Posters & OOH

Link installations and ad units to signed, tamper‑proof URLs that resist QR spoofing and rogue redirects.

Secure Device Pairing

Simplify onboarding by tapping to pass signed context to your app or device instead of typing setup codes.

Why developers choose us ?

End-to-End Security

Based on ECC hardware certificates. Each tap is individually signed and verified by our edge network.

Zero Infrastructure

No keys to rotate or secure elements to manage – we take care of everything.

Realtime Analytics

Follow activations around the globe, detect anomalies and export raw data.

Flexible Form-Factors

Stickers, cards, wearables… choose from our catalogue or bring your own.

Pay-As-You-Go

Transparent pricing per activation, generous free tier and volume discounts.

GDPR-Ready

Data is processed in the EU by default and never shared with third parties.

Customizable

Possibility to burn the tag with your domain for a better user experience. Any customization possible.

User Engagement

Extend the real world experience of the object to a digital one. Engage with your user through the internet.

Ready to Keep It Simply Secure ?

Tell us about your project and we’ll get back to you with sample tags, documentation and pricing.

Contact us