Apps · OTP Hub

OTP Hub pricing & billing

One price per message for every country, when messages are free, and how they are charged to your wallet.

Price per message

You pay one fixed price for each code that WhatsApp accepts, whatever the country of the number. You don't need a price list or exchange rates: the Overview tab of the OTP Hub page shows the price per message and roughly how many messages your balance covers. The price of every paid send is also returned in data.price.

  • Nothing is charged for test mode, for codes WhatsApp refuses, for codes you send while a free allowance applies, or for codes sent from your own number (Meta bills those to your WhatsApp account).
  • If WhatsApp later reports a message as not delivered, its price is refunded automatically.
  • Prices are in US dollars, like your wallet.

Free messages

Included in your plan
Some plans include a number of free OTP Hub messages every month. They are used first, and the count resets on the 1st of each month (UTC).
Granted by Inboxi
Inboxi can make OTP Hub free for a workspace, or give it a monthly free allowance or a discount. Your OTP Hub page shows what applies to you.

Wallet

Paid messages come out of your wallet balance. You can top it up straight from the OTP Hub page (Top up wallet, from $5) or from Settings › Billing. Before a paid message is sent, OTP Hub checks that your balance covers it. If it doesn't, the request returns 402 INSUFFICIENT_BALANCEand nothing is sent. Top up your wallet to continue.

To keep your billing history readable, messages are posted to the wallet in batches, not one by one. Each batch appears as a single line such as "OTP Hub: 128 verification messages", posted once usage reaches $1 and at least once a day. Usage not yet posted already counts against your available balance. The Overview tab shows it as pending usage.

Tip
If your sign-ups depend on OTP Hub, keep enough balance for a few days of codes. When your balance drops below your alert level ($2 by default, set it in Settings), you get a notification and an email, at most once a day.
OTP Hub guide
Set up, send and verify codes.
Plans, credits & billing
Your wallet, plans and invoices.