Crypton.sh - Secure physical phone number in the cloud

Our Services

Secure messaging, global eSIM data plans, and powerful API access - all in one platform.

Secure SMS

Get a physical phone number with end-to-end encryption. Perfect for privacy-conscious users who need a second number.

End-to-end encryption
Physical SIM cards
Global coverage
API access available

Get Started

New

eSIM Data Plans

Instant data connectivity in 145+ countries. No physical SIM needed - activate via QR code in seconds.

145+ countries available
Instant activation
No physical SIM needed
Flexible data plans

Browse Plans

Beta - Free

Email Forwarding & Aliases

Create email aliases and forward emails to your existing inbox. Currently in beta with crypton.is domain - custom domains coming after beta.

Email aliases
Forward to any email
Privacy-focused
Custom domains after beta

Get Started

Powerful API

Integrate our services into your applications. Send and receive messages programmatically with full encryption support.

RESTful API
Full encryption support
Comprehensive documentation
Developer-friendly

View API Docs

Trusted by Thousands

Join thousands of users who trust Crypton.sh for their privacy needs

47K+

Active Users

44K+

Messages Sent & Received

165+

Countries Supported

99.9%

Uptime

Use Cases

Discover how Crypton.sh can help protect your privacy and enhance your digital security

Privacy Protection

Keep your personal number private and stop corporations from selling it to advertisers. Use a separate number to avoid spam and protect your identity.

Stop corporate advertising
Block spam messages
Protect your identity

Account Verification

Receive verification codes for 2FA, banking, and crypto exchanges. Also verify additional accounts on WhatsApp, Telegram, Gmail, and use as a domain whois number.

2FA & banking
Additional accounts
Domain whois

Global eSIM Data

Get instant data connectivity in 145+ countries with our eSIM data plans. No physical SIM needed - activate via QR code in seconds.

145+ countries
Instant activation
QR code setup

Powerful API

You can use our powerful API to access your messages and send new ones via any device... iPhone, Android? Terminal? Go ahead!

Cross-platform access
Any device support
Terminal compatible

Business Use

Separate business communications from personal. Use dedicated numbers for customer support, marketing campaigns, or team coordination.

Customer support
Marketing campaigns
Team coordination

Zero-Access Encryption

We use industry standard 256-bit asymmetric encryption to encrypt all your data using your own personal keypair. We physically cannot access your information even if we were compelled to do so.

256-bit encryption
Personal keypair
Physically inaccessible

Simple Conversations

You can both receive and send messages with our service. Receiving is free as long as you have a number. Sending is paid using our pay-as-you-go pricing.

Free receiving
Pay-as-you-go sending
Simple pricing

Stop SIM Card Swap Scams

Your mobile provider most likely does not protect you from malicious actors stealing your SIM via a swap scam, we do.

SIM swap protection
Secure authentication
Enhanced security

Developer Integration

Integrate secure messaging into your applications with our powerful API. Send and receive messages programmatically with full encryption support.

RESTful API
Full documentation
Webhook support

How It Works

Get started with Crypton.sh in just a few simple steps

Sign Up

Create your account in seconds. Use an account number - no email required.

Choose Your Service

Select a physical number, virtual number, or eSIM plan that fits your needs.

Activate & Use

Your number is activated instantly. Start receiving SMS or using your eSIM right away.

Stay Protected

All your messages are encrypted with your personal key. Your privacy is our priority.

Pricing

Choose the plan that fits your needs. All plans include end-to-end encryption and privacy protection.

Physical Number

€8.00 + SIM

per month

Own a secure personal number which you can use for incoming and outgoing messages. There are currently 3 phone numbers available.

United Kingdom

€14/mo

End-to-end encryption
Physical SIM cards in our infrastructure
Full API access
Global coverage

now available!

eSIM Data Plans

€0.32 per plan

Starting price

Get instant data connectivity in many countries with 1940 data plans available.

145+ countries available
Instant QR code activation
No roaming charges
Flexible data plans

Virtual Numbers

€5.00 per month

Starting price

Browse available phone numbers across different countries with transparent pricing.

€5 10+ Canada €12 9 Lithuania €12 10+ Netherlands €10 10+ Sweden €5 10+ United States

Instant activation
Global coverage
Transparent pricing
API access available

Message Pricing

Simple, transparent pricing for all your messaging needs

Select your country...

Update

Incoming

FREE

always

Outgoing

€0.00

per message

Features

Incoming messages free
Pay per outgoing message
No monthly fees
Global SMS support

Supported Payments

Cryptocurrencies recommended

For maximum privacy and anonymity, we recommend using cryptocurrency payments.
We support a wide range of cryptocurrencies including:

Monero

Bitcoin LN

Ethereum

LTC

XRP

USDC

TRX

BCH

ZEC

DASH

DOGE

Credit card payments available

All major credit card providers are supported for your convenience.

Direct bank transfers are also available from UK, US, EU, and PL bank accounts.

Visa

Mastercard

Amex

Apple Pay

Google Pay

WeChat Pay

Why Choose Crypton.sh

See how we compare to other services

Feature	Crypton.sh	Other Services
End-to-End Encryption	Yes	No
Open Source Code	Yes	No
Privacy-Focused	Yes	Limited
TOR Support	Yes	No
Cryptocurrency Payments	Yes	Limited
No Data Collection	Yes	No

Developer-Friendly API

Integrate Crypton.sh into your applications with our powerful REST API

RESTful API

Simple HTTP requests to send and receive messages programmatically

Webhook Support

Get real-time notifications when messages are received

Full Documentation

Comprehensive API documentation with code examples

SDK Support

Libraries available for popular programming languages

Quick Start Examples

curl -X GET "https://crypton.sh/api/v1/user" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json"

curl -X GET "https://crypton.sh/api/v1/user" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json"

curl -X POST "https://crypton.sh/api/v1/conversations/send-message" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -d '{"conversation_uuid": "YOUR_CONVERSATION_UUID", "message": "Hello world!"}'

curl -X POST "https://crypton.sh/api/v1/conversations/send-message" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -d '{"conversation_uuid": "YOUR_CONVERSATION_UUID", "message": "Hello world!"}'

curl -X GET "https://crypton.sh/api/v1/phones" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json"

curl -X GET "https://crypton.sh/api/v1/phones" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Accept: application/json"

View API Documentation

FAQ

All of your frequently asked questions answered.

The public / private keypair is stored within our secure database servers, there are two asymmetric keys, master and encryption. The master key is used to encrypt your encryption key while the encryption key is used to encrypt any data you have. We do not have access to either of them as your passphrase is required to decrypt. You can retreive them by downloading your data in the dashboard.

You're right, nothing and nobody can be trusted, however we have made our best efforts be as transparent as possible and have therefore released our user encryption module source code on GitHub, you can access it by clicking the icon in the footer. The general rule is that you shouldn't provide any information you wouldn't want to be leaked.

No, while we make sure to encrypt any data stored on our servers / infrastructure, data is not being encrypted as soon as it exits our systems onto the GSM / CMDA network.

Anything you want really, if you need to create a second account on Signal, Telegram, Whatsapp or any other service that requires a mobile phone number. You can even use it with social networks to stop them selling your data to advertisers. You can use it to message friends or relatives if you need to.

You can receive and send messages from any country available in our helpful message pricing box. Basic rule is that most countries will work perfectly fine, on some sent messages however your number may be replaced with a "SMS" contact, in those cases we include your number at the end of the message.

Why Trust Crypton.sh

Built with privacy and security as our foundation

End-to-End Encryption

Your data is encrypted with keys only you can access

Open Source

Encryption module source code available on GitHub

Secure Infrastructure

Your data is stored on secure servers with privacy-focused hosting

No Message Reading

We cannot read your messages even if we wanted to

100%

Encrypted

Messages Read

24/7

Available

TOR

Supported

What Our Customers Say

Real reviews from real users who trust Crypton.sh for their privacy needs

View All Reviews on Trustpilot View All Reviews on KYCnot.me

Numbers are working everywhere. And this alone is quite rare… I have tried other services but the numbers were seen as reused by ex. Google.

Customer

Trustpilot

Crypton is a solid and reliable provider of mobile numbers for SMS verifications

Jon

Trustpilot

Great service! I am using it for a while and satisfied.

Ole

Trustpilot

Accepts monero, so it's a product for the people.

Neo

Trustpilot

It works great

Customer

Trustpilot

Great Service When Everything Works as Intended. Rented two numbers already as well as had an interaction with support about an issue I encountered. They were very helpful and added a feature to resolve my issue in less than a week.

Customer

Trustpilot

Been using Crypton.sh for a while now and overall it works well. I like the no-KYC policy and the encryption setup feels solid. Setup was smooth and delivery was quick. Support could be a bit faster, but aside from that it's been reliable so far. Good value for the price.

User

KYCnot.me

Affordable encrypted SIM service with strong privacy focus. Messages stay secure with personal key encryption.

Jack

KYCnot.me

Nice service, price is fair (14eur/mo), had no problems with numbers, I might be just lucky tbh

User

KYCnot.me

Your 2nd phone numberin the cloud.

Privacy-first messaging with physical numbers, virtual numbers, and eSIM data plans. No email required - just an account number.100% encrypted messages with your personal keypair. Zero-access encryption means we cannot read your data, even if compelled.

Our Services

Secure SMS

eSIM Data Plans

Email Forwarding & Aliases

Powerful API

Trusted by Thousands

Use Cases

Privacy Protection

Account Verification

Global eSIM Data

Powerful API

Business Use

Zero-Access Encryption

Simple Conversations

Stop SIM Card Swap Scams

Developer Integration

How It Works

Sign Up

Choose Your Service

Activate & Use

Stay Protected

Pricing

Physical Number

eSIM Data Plans

Virtual Numbers

Message Pricing

Features

Supported Payments

Cryptocurrencies recommended

Credit card payments available

Why Choose Crypton.sh

Developer-Friendly API

RESTful API

Webhook Support

Full Documentation

SDK Support

Quick Start Examples

FAQ

We're Here to Help

Internal Support System

Session Messenger

SimpleX Chat

Why Trust Crypton.sh

End-to-End Encryption

Open Source

Secure Infrastructure

No Message Reading

What Our Customers Say

Crypton

Vetr.is

Your 2nd phone number
in the cloud.

Privacy-first messaging with physical numbers, virtual numbers, and eSIM data plans. No email required - just an account number.
100% encrypted messages with your personal keypair. Zero-access encryption means we cannot read your data, even if compelled.