Verify Your Claude Account With an OTP Bolt Number

Steps to receive a Claude SMS code

Claude may ask for a mobile number while you create your account, after you've confirmed your email. That's the screen this walkthrough is for.

1. Top up your wallet. Exact per-country prices appear after the first top-up.
2. In the dashboard, open Instant OTP, search Claude, and choose a country where Claude is available.
3. Place the order and copy the number. The 20-minute window starts now.
4. Back on Claude's verification screen, select the matching country code and enter the rest of the digits.
5. Request the code.
6. When the text lands in your dashboard inbox, type the code into Claude and continue.

Do this in two browser tabs side by side. Claude's code field and the inbox are then both in view, and you won't lose the sign-up page while hunting for the message.

If the Claude code is slow or missing

First, wait. Two minutes is a fair amount of patience for most SMS verification.

Then work through this short list:

• Look again at the country code on Claude's form. A wrong selection sends the code somewhere else entirely.
• Use the resend option once if Claude shows one; a second message can arrive on the same number.
• If Claude refuses the number, cancel and choose another supported country.

You won't lose money on a code that never arrives. When the 20 minutes run out with an empty inbox, or you cancel before anything comes in, the full price goes straight back to your wallet. A code that did arrive counts as delivered and isn't refunded.

What Claude does with your phone number

Like many AI services, Claude can use a phone check at sign-up to confirm that a real person is behind a new account. Whether you see the prompt, and whether it comes back later, depends on your account and how you sign in, so don't assume it's strictly once.

Because of that, the number is tied to your account identity. Many people who care about privacy would rather not hand over their personal mobile to yet another service, and that's a perfectly good reason to use a separate number. Just make sure it's one you control.

Supported countries matter more here than for most apps

OTP Bolt offers Instant OTP for Claude in 197 countries, but Claude itself is only offered in the countries and regions Anthropic supports. Check Anthropic's list before you order.

Well-supported picks include the United States, the United Kingdom, Canada, Ireland, Germany, France, Poland, India, Japan, South Korea, Singapore, Australia, New Zealand, Brazil, Mexico, Nigeria and the United Arab Emirates.

Choose the country you actually live or work in. A number from somewhere else won't change where Claude considers you to be, and the price can differ from one country to the next anyway.

Should you keep a number for your Claude account?

For a personal account where the number is a one-time sign-up check, Instant OTP is usually enough.

A Dedicated Number makes more sense when:

• you want the same number available if Claude ever asks you to verify again;
• the account is a work account and shouldn't depend on one person's SIM;
• you'd like a business line that can also place and receive calls in the browser.

It starts from $1.95/month on a prepaid term paid from your wallet, with an email reminder before renewal, and you can release it at any time. It receives unlimited verification texts and keeps a call log. Numbers in the US, Canada and Puerto Rico are self-serve and work immediately. Elsewhere, request the country in the dashboard and the team will confirm availability, price, and whether an address or ID check is required first.

Testing AI-powered sign-up flows

Teams building on Claude often ship their own products with phone verification. The OTP Bolt REST API lets your test suite order a number, poll for the incoming code and cancel unused orders with an API key, so you can run your own app's SMS step end to end. The developer docs cover authentication and the order lifecycle.

Stay within Claude's terms

Use one account per real person, follow Anthropic's usage policies, and don't use a number to sidestep regional availability or a previous suspension. We're not affiliated with Anthropic; Claude is a trademark of its owner, and Anthropic decides which numbers to accept.

The wallet is prepaid in US dollars and takes cards via Stripe checkout or USDT / USDC. Each top-up comes with an emailed PDF invoice, which is handy if your employer reimburses AI tools.

App names are trademarks of their owners. OTP Bolt is not affiliated with them. Follow each app's terms.