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Live in 200+ countries · 6,000+ apps

OTPs at the speed of lightning.

Rent a real phone number, receive the verification code in a live inbox, ship your signup flow. Built for developers, QA teams and anyone who'd rather not hand out their personal SIM.

Get your first OTP Read the API docs
Auto-refund if no SMSCard + USDT/USDCREST API, no SDK
otpbolt.com/app · Live inbox polling
T
Telegram🇬🇧 +44 7700 9•• •12 · 4s
58 214
Telegram code: 58214. Do not give this code to anyone.
W
WhatsApp🇮🇳 +91 98••• ••431 · 7s
731-904
Your WhatsApp code: 731-904
AI
OpenAI🇺🇸 +1 (415) ••• •277 · 3s
204 668
Your OpenAI verification code is 204668
# or fetch it from your test suite
POST /api/v1/activations  {"service":"telegram","country":"gb"}
GET  /api/v1/activations/5f0c…  → {"status":"received","code":"58214"}
200+countries with live stock
6,000+apps & services supported
~20stypical time to code
$0.15starting price per OTP
Why teams switch to OTP Bolt

Verification codes without the friction.

Most SMS-receive sites feel like 2012. OTP Bolt is a modern, developer-grade service: a real-time inbox, honest pricing, automatic refunds and an API you can wire into CI in an afternoon.

Instant, live inbox

Codes stream onto your screen the moment the carrier delivers them. No refresh button, no guessing.

Pay only for codes that arrive

No SMS before the window closes? The full price returns to your wallet automatically — no tickets, no claims.

API-first for developers

Rent, poll, retry, cancel — clean JSON over REST with Bearer keys. Perfect for QA automation and CI pipelines.

200+ countries, live stock

See price and availability per country before you rent, so you pick the route most likely to deliver.

Numbers you keep

Need continuity? Get a dedicated US or Canada number with an SMS inbox and browser calling on flat terms.

Private by design

Keep your personal SIM out of yet another database. 3-D Secure on every card and crypto with exact-amount matching.

How it works

From signup screen to verified in four steps.

Top up your wallet

Card or USDT/USDC from $5. Credit never expires and applies automatically at checkout.

Pick an app and a country

WhatsApp, Telegram, Google, OpenAI, TikTok and 6,000+ more — with live prices.

Paste the number

Copy the temporary number into the app's verification screen and request the code.

Read the code

It lands in your live inbox in seconds. Need another? Request a second SMS on the same number.

# python — grab an OTP inside your test
import requests, time, os
API = "https://otpbolt.com/api/v1"
H = {"Authorization": f"Bearer {os.environ['OTPBOLT_KEY']}"}

act = requests.post(f"{API}/activations",
      json={"service": "whatsapp", "country": "us"},
      headers=H).json()
print("type this number:", act["phone"])

while True:
    a = requests.get(f"{API}/activations/{act['id']}", headers=H).json()
    if a["status"] == "received":
        print("code →", a["code"]); break
    time.sleep(4)
Popular right now

Receive OTPs for the apps you actually test.

WhatsAppTelegramGoogle & GmailOpenAI / ChatGPTTikTokFacebook / MetaInstagramDiscordX (Twitter)MicrosoftAmazonUberSignalLinkedInSnapchatTinderPayPalBinanceCoinbaseNetflixViberWeChatYahooSteamAirbnbShopee
🇺🇸United States +1🇨🇦Canada +1🇬🇧United Kingdom +44🇩🇪Germany +49🇫🇷France +33🇳🇱Netherlands +31🇪🇸Spain +34🇮🇹Italy +39🇵🇱Poland +48🇵🇹Portugal +351🇸🇪Sweden +46🇷🇴Romania +40🇺🇦Ukraine +380🇹🇷Türkiye +90🇮🇳India +91🇵🇰Pakistan +92🇧🇩Bangladesh +880🇱🇰Sri Lanka +94🇳🇵Nepal +977🇮🇩Indonesia +62🇵🇭Philippines +63🇻🇳Vietnam +84🇹🇭Thailand +66🇲🇾Malaysia +60
Developer plans · Instant OTP

Pay as you go — or lock in lower prices.

Every account starts on Spark. Plans are prepaid terms from your wallet that cut the price of every code and raise your API rate limit.

Spark

$0 / pay as you go

Pay-as-you-go. No subscription — perfect for one-off signups and quick tests.

  • Standard OTP rates
  • REST API · 30 req/min
  • Auto-refund if no SMS arrives
  • 200+ countries
Start free
Most popular

Volt

$9.00 / 30 days

For indie developers shipping weekly — about 23% lower per-OTP prices for 30 days.

  • ≈23% off every OTP
  • REST API · 120 req/min
  • Webhook-ready polling
  • Priority routing
Choose Volt

Surge

$24.00 / 30 days

QA teams and CI pipelines running hundreds of verification flows a month.

  • ≈36% off every OTP
  • REST API · 600 req/min
  • Multiple projects, one key
  • Priority support
Choose Surge

Storm (annual)

$199.00 / 365 days

Surge pricing locked for a full year — two months free versus monthly.

  • Everything in Surge
  • 12 months for the price of 10
  • Invoice per renewal
  • Dedicated onboarding
Choose Storm
My Numbers

A dedicated line when one code isn't enough.

Keep a US or Canada number for a week or a year. Unlimited inbound SMS in a persistent inbox, calls straight from your browser, auto-renew from your wallet — and release it whenever you're done.

  • Flat prepaid terms, no surprise rent
  • Browser calling in and out (WebRTC)
  • SMS history + API access to the inbox
  • Auto-renew from wallet, cancel any time
Explore dedicated numbers

1 week

$3.50

≈ $15.00/month · Short projects, events, a single campaign.

Pick a number

1 month

$6.50

≈ $6.50/month · Flexible monthly line — renew or release any time.

Pick a number
Best balance

3 months

$17.00

≈ $5.67/month · Save 13% versus monthly.

Pick a number

6 months

$30.00

≈ $5.00/month · Save 23% versus monthly.

Pick a number

12 months

$54.00

≈ $4.44/month · Best value — $4.50 a month, billed once.

Pick a number
From the blog

Guides for builders.

Privacy

Protecting Your Privacy Online with a Second Phone Number

Why your personal number is a tracking identifier, when a temporary or dedicated second number makes sense, and the accounts that should always stay on your own SIM.

6 min read →Europe

OTP Verification Across the UK and EU: Formats, GDPR and Best Practice

Mobile formats from +44 to +48, how PSD2 shapes SMS codes, what GDPR means for phone numbers, and how to test European signup flows efficiently.

7 min read →United States

US Phone Verification Guide: +1 Numbers, Short Codes, 10DLC and Carrier Filtering

Everything that affects OTP delivery in the United States — number types, 10DLC registration, toll-free verification, short codes and how to test +1 signup flows.

8 min read →

Frequently asked questions

What is OTP Bolt?

OTP Bolt rents real phone numbers so you can receive one-time passwords (OTP) and SMS verification codes online. Pick a country and an app, get a temporary number, and the code appears in a live inbox — usually within seconds.

How much does a temporary number cost?

Prices start at $0.15 per code and depend on the country and app. You see the exact price before renting, and if no SMS arrives during the rental window you're refunded automatically.

Do you have an API for developers?

Yes. Generate an API key in the dashboard and use the REST API to rent numbers, poll for codes, request another SMS and cancel activations — ideal for QA automation and CI pipelines.

Can I keep a number?

Yes — My Numbers gives you a dedicated US or Canada number with an unlimited SMS inbox and browser calling, on flat prepaid terms from one week to twelve months.

How do I pay?

Top up your USD wallet by card (Stripe, with 3-D Secure) or with USDT/USDC on Tron, Polygon, BNB Chain, Base or Solana. Wallet credit is applied automatically at checkout.

Which countries are supported?

Instant OTP numbers are available in 200+ countries including the United States, United Kingdom, India, Indonesia, Brazil and Germany. Dedicated numbers are self-serve in the US and Canada.

Is using a temporary number allowed?

Receiving SMS on a rented number is lawful in most countries, but each app has its own terms. OTP Bolt is for testing, privacy and legitimate signups — never for fraud or evading bans.

Ready when you are

Your next OTP is one click away.

Create a free account, top up from $5 and receive your first code in under a minute.

Create free accountSee pricing