Coinkite TAPSIGNER
A credit-card-shaped NFC signing device from Coinkite. The private key is generated inside the card's secure element and never leaves it; you tap the card against a phone to approve a Bitcoin transaction.
Services
- NFC tap-to-sign
- Secure element key generation
- Card form factor
- Works with mobile wallets
Highlights
Source: Official website — product page. Last checked 2026-09-18. Spot an error? Tell us.