Everything a developer needs for transactional messages
Email, SMS, and OTP verification — unified under one API key, one dashboard, and one INR invoice. MailsSetu is built for the complete developer communications stack, not just email.
What you get with MailsSetu
Built for developers who want to ship communications fast and correctly.
Unified email + SMS + OTP
One API key, one dashboard, one invoice covers transactional email, SMS notifications, and OTP verification flows. No stitching together separate vendor accounts.
True INR pricing
Pay in Indian rupees via UPI, debit card, or net banking. GST invoices are automatic. No currency conversion, no international card, no forex surprises.
Production-grade OTP and Verify API
Built-in OTP service with configurable code length, TTL, max attempts, and custom SMS templates. Handles the full flow — send, check, cancel — with idempotency built in.
Inbound email routing
Receive emails and route them to your webhook as structured JSON. Support ticket replies, form submissions, or automated workflows — all from the same account.
AI-agent-ready install flow
Short-lived install tokens let AI assistants and CI pipelines configure MailsSetu safely. Agents get a scoped API key without ever receiving permanent owner credentials.
Webhooks with replay and delivery tracking
HMAC-signed webhook delivery for every email and SMS event. Full delivery log per endpoint. Missed deliveries can be replayed from the dashboard — nothing is lost.
Simple INR pricing
Flat-rate monthly plans. No per-email surprise charges above quota.
SMS credits and top-up email credits available separately. GST applied on all invoices. UPI · Debit/credit cards · Net banking accepted.
India-first. Not India-as-an-afterthought.
MailsSetu is the only communications platform built end-to-end for Indian compliance: INR billing, UPI, GST invoices, managed delivery infrastructure, and India-based support.
GSTIN 29AANCR6717K1ZN · Mumbai, Maharashtra · Managed delivery stack
One API for all your transactional messages
Free tier: 3,000 emails/month. Sandbox mode works immediately, and paid plans start from ₹399/month when you are ready to go live.
Explore more
See the intent page built for API-first sending, SMTP relay, and developer workflows.
Move from pricing research to a real send flow with a sandbox key and verified domain plan.
Learn how SPF, DKIM, DMARC, bounce handling, and reputation affect real inbox placement.