MarketHK Verify

Cut SMS OTP with standard Authenticator apps — no custom app.

MarketHK Verify provides standard RFC 6238 TOTP as SaaS: we handle enrolment, challenge, code verification and audit logging — your system only needs a simple API integration. Customers keep using familiar authenticator apps such as Google, Microsoft, 1Password or Bitwarden. SMS remains available as an admin-configured backup verification path.

Understand first, then plan a clear go-live path.

01
Seed enroll
Code check
Recovery

Why TOTP?

SMS OTP is billed per message and affected by delay and number portability. TOTP generates a 6-digit code offline with no per-use telecom fee.

  • Lower OTP SMS spend
  • Lower SIM-swap / intercept risk
  • Familiar Authenticator UX
  • SMS fallback still available
02
App
TOTP
SMS

How it works

Encrypted secrets, challenges, verify, lockouts and audit on the platform; you call /v1/totp. Optional QR enrol in Contacts; admins set fallback paths.

  • Enroll → Confirm → Challenge → Verify
  • Public API
  • Contacts QR
  • e.g. customer_totp → sms
03
01Enroll
02Daily
03Support

Hybrid fallback

Prefer registered device / TOTP, then Email OTP if needed, SMS recovery last. Record reason and outcome on every switch.

  • Governable priority
  • Timeouts and retries
  • Risk and daily caps
04
01Request
02Approve
03Send

Go live in four steps

Consult or register → enable channels and fallback → API key / Contacts enrol → validate on a small cohort, then expand.

05
Email
App
SMS

Security

No plaintext secret after first confirm; rate limits, replay protection, clock skew; recovery under admin control.

Easy to apply

Start MarketHK TOTP in four steps

Designed for Hong Kong enterprises: understand first, then go live — no custom Authenticator build.

01

Book a consult

Share OTP/SMS volume, systems and target go-live.

Start →
02

Open a workspace

Register, create a workspace; admin enables channels and fallback policy.

Start →
03

Enrol and integrate

QR in Contacts or call /v1/totp; customers use familiar Authenticator apps.

Start →
04

Measure and expand

Prove success rate and SMS savings on a small cohort, then expand.

Start →

Next step

Ready to move SMS OTP to Authenticator?

Share monthly OTP volume and current systems — the Hong Kong team will propose a go-live scope and fallback design.

Contact Us