Make real calls to any phone number worldwide. No phone plan. No personal info. Pay per minute with crypto. Your number rotates after every call.
No email. No phone number. No KYC. Just connect a wallet and start calling.
Open the app and connect with MetaMask, Rainbow, Coinbase Wallet, or any WalletConnect-compatible wallet. No sign-up required.
Enter any real phone number in the world. Select how many minutes you want. The rate is shown before you confirm.
Pay with USDC on Base (low gas fees). A random caller ID is assigned. When you hang up, the number rotates back.
Every design decision starts with one question: how do we protect the caller's identity?
Each call shows a random number from our pool. After the call, it rotates. No number is ever tied to you.
No email, no phone number, no name. Your wallet address is the only identifier — and it's pseudonymous.
USDC on Base chain. No credit cards, no bank accounts, no payment trail back to your real identity.
Reach real phone numbers in 200+ countries. Landlines, mobiles, international — all supported.
No subscriptions, no minimums. Buy exactly the minutes you need. Unused balance stays in your wallet.
Calls use WebRTC with SRTP encryption. Audio is encrypted in transit between your device and the network.
Pay per minute with USDC. Rates vary by destination. No hidden fees.
Rates depend on the destination country. You see the exact price before every call.
Everything you need to know about Wispr.
Wispr never asks for your name, email, or phone number. Your only identifier is a crypto wallet address, which is pseudonymous. Caller ID shown to the recipient is a random pool number that rotates after every call.
USDC is a stablecoin pegged 1:1 to the US dollar. It runs on the Base blockchain (Coinbase's L2), which means transactions cost fractions of a penny. You can buy USDC on Coinbase or any major exchange.
Yes — any real phone number in 200+ countries. Landlines, mobile phones, international numbers. Wispr routes calls through Telnyx's global telecom network.
A random US phone number from our rotating pool. After your call ends, that number goes back into the pool and may be assigned to a different caller next time. It's never linked to you.
Yes — you'll need an external wallet like MetaMask, Rainbow, or Coinbase Wallet. When you open Wispr, just tap "Connect Wallet" and approve the connection. No account or personal info needed.
Yes. Wispr is a VoIP service that lets you make phone calls and pay with cryptocurrency. Using a VoIP number as caller ID is standard practice for services like Google Voice, Skype, and others.
Open Wispr in your browser and make your first anonymous call in under 60 seconds.