minimoth
Everything you need. Nothing you don't.
MiniMoth handles the hard parts of OTP auth so you can ship faster — WhatsApp delivery, SMS fallback, DLT compliance, session management, and more.
Simple REST API
Two endpoints to send and verify an OTP. Integrate in minutes — no SDK, no complex setup. Works with any backend language.
Official Node.js SDK
@minimoth/sdk-node wraps the API in a typed client — faster, easier integration for Node backends with no manual HTTP calls or response parsing.
₹0.35 per OTP
Up to 28× cheaper than alternatives like Clerk or Firebase. No monthly minimum, no per-seat fees. Pay only for what you use.
₹50 free every month
Every account gets ₹50 in credits on the 1st of each month — around 142 OTPs. No card required to get started.
OTP via WhatsApp, with SMS fallback
MiniMoth tries WhatsApp first — faster delivery, no carrier delays. If the message doesn't go through, SMS kicks in automatically. You configure nothing; your users just get their code.
DLT compliance handled
MiniMoth is TRAI DLT-registered. You skip carrier approvals, template submissions, and weeks of compliance paperwork entirely.
Session management
Access and refresh tokens out of the box. Session validation is a fast in-memory lookup. Theft detection revokes compromised tokens automatically.
Test playground
Every project gets a sandbox key. Test the full OTP flow interactively in the dashboard — no SMS sent, no credits consumed. The same page also lets you run a live test that sends a real OTP and uses your credits.
Built-in abuse protection
OTP send and verify rate limits are enforced per phone number at the API level. You don't have to implement any of this yourself.
Well-documented API
Quickstart, session lifecycle, recipes, and stable error codes — all documented. Every error response includes a code you can switch on.
Per-project isolation
Each project gets its own live and test API key. Rotate a key without touching your other projects. Configurable session token lifetime per project.
Email alerts
Get notified when your balance is low, credits are exhausted, or an API key is regenerated. Configurable per alert type from your dashboard.
No card required. ₹50 in free credits every month.