Device-bound OTP guard
OTP SDK
OTP SDK is for systems that already run an OTP flow and want TapSign to guard the request, reveal, or verify phase. TapSign does not become the SMS or email sender in this track; it adds the device-bound approval layer around the OTP flow you already own.
Protect an OTP step you already have so the reveal or redeem moment waits for device approval.
- For existing SMS, email, or app-based OTP UX
- Guards request, reveal, and verify moments
- A stolen password alone should not be enough
Product familyDevice-bound OTP guard
Best forProducts that already have an OTP flow and want stronger approval at the critical step
CoversOTP request, reveal, and verify decisions protected by the enrolled device
Next stepOpen OTP docs