dP Relay

OTP & bulk SMS for Bangladesh, one simple API

৳0.20 BDT / SMS

Verification codes and bulk campaigns over a REST API you can integrate in minutes. Pay with bKash, top up from the dashboard, start with free trial credits.

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How it works

  1. Create your account

    Sign up with your email, verify it, and land in the dashboard — new apps receive free trial credits.

  2. Register an app

    The dashboard issues your appId and appSecret once. They are the only credentials every API call needs.

  3. Send messages

    Call POST /v5/otp/send for verification codes or launch a bulk campaign from the dashboard. Balance updates as credits are used.

Built for developers

  • Plain REST with JSON bodies and predictable { ok, error, code } failures.
  • Strict E.164 numbers, clear error codes, and per-number rate limits that protect deliverability.
  • Signed webhooks (X-DP-Signature) so your backend can trust delivery events.
  • Transparent pricing at ৳0.20 per SMS with package top-ups via bKash — see pricing.