◈OTPProvider
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Verification infrastructure

Start sending verification codes in minutes

One API for Email OTP, WhatsApp OTP and email validation, with a wallet, dashboards and live support built in.

curl -X POST https://otpprovider.com/api/v1/email-otp/send \
  -H "Authorization: Bearer otp_live_…" \
  -H "Content-Type: application/json" \
  -d '{"to":"user@example.com"}'

{ "success": true,
  "request_id": "req_9f2c…",
  "data": { "status": "SUBMITTED" } }

Services

Email OTP

Send one-time codes by email through your verified sender, with per-request tracking of the sender, recipient and status.

WhatsApp OTP

Deliver codes over WhatsApp from linked devices managed by our team, with automatic switching between devices.

Email validation

Check syntax, domain, MX records, disposable and role-based addresses before you send. It never claims a mailbox exists.

Server-side security

Hashed API keys, encrypted secrets, mandatory 2FA for staff and strict tenant isolation.

Honest billing

A prepaid wallet with an append-only ledger. A message is charged once, and refunds are new ledger entries.

Real delivery states

Accepted is not delivered. We show exactly what the provider confirmed, including uncertain outcomes.

Built for the world

Seven languages with true right-to-left layout, light and dark themes.