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WhatsApp OTP

WhatsApp OTP verification over WhatsApp Business, at published per-country rates. Send and verify codes over chat with the otp.com API.

One message. Every country.
From $0.0010 Per verification
Per country 199 destinations
WhatsApp Business Delivery surface

WhatsApp OTP verification runs over WhatsApp Business rather than the mobile network. Like SMS it is priced per country, at published rates you can read before you route to a market. The flow differs from the other channels in one way: the user opens a link to start the chat, and the code comes back to them there.

You never name a channel on a send: routing picks it from the recipient and your channel order. See Channels & routing for how that decision is made.

When to Use WhatsApp OTP

Where it fits

  • Published per-country rates, so the cost of any market is known before you route to it
  • High open rates on a surface users already have in the foreground
  • The inbound and outbound messages that carry one code count as a single verification

Worth knowing

  • In the link modes an OTP already on a wa.me link needs an explicit resend with a channel to move off it, since a plain resend re-returns the same link
  • It asks one extra action of the user, so it suits flows where you can show a button

WhatsApp OTP Pricing

$0.0010 to $0.0660 per verification · by country

Priced per country, because the underlying delivery cost is. Rates run from $0.0010 to $0.0660 per verification across 199 countries; United States is $0.0041. Each figure is the cheapest route we can deliver on for that country, so treat it as your starting point.

Compare every channel and country, and estimate a monthly cost, on the pricing page.

WhatsApp OTP in the Docs

The reference behind this page, for when you are ready to integrate.

WhatsApp verification All three modes, what action_url and completion mean, and moving a stuck OTP to SMS. Read → POST /otp/send Where action_url comes back, and what pending means here. Read → How verification works Statuses, attempts and expiry, identical across channels. Read →

The Other Channels

The same two API calls cover all four, so you can put more than one in your order and let routing pick.

SMS OTP Reaches every phone, with no app and no account required. Telegram OTP A data-network route for audiences that live in Telegram. Email OTP Verify a web sign-up without ever asking for a phone number.

Ship verification with one prompt.

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