SMS Authentication

SMS authentication must be
secure and fast

By sending one-time passwords and log-in codes to your customers in a simple, secure and super-fast manner.

Most secure supplier in Europe

Spryng is the only messaging supplier for SMS and WhatsApp in Europe to be fully certified (ISO 27001 & NEN 7510). Our servers are located in the EU, in Frankfurt and Paris.

Worldwide reach

With only 1 REST API we send millions of SMS messages worldwide every day; in more than 900 networks in approximately 190 countries.

Fastest delivery guaranteed

Unlike most operators, Spryng only works with direct connections. Your authentication messages are our highest priority and delivered within seconds.


Spryng integrates
(almost) all systems

Spryng’s SMS Gateway is standardy linked to many Multi Factor Authentication systems. This way you can easily send SMS messages within minutes.

Check all integrations


Get started quickly with your own application in multiple languages such as PHP, Ruby, Node, Javascript and Java. Extra simple due to various SDKs, plugins and sample codes in different languages.

$spryng = new \Spryng\Client('YOUR_ACCESS_KEY'); $message = new \Spryng\Objects\Message(); $message->originator = 'Spryng'; $message->recipients = [31612345678]; $message->body = 'This is a test message.'; $Spryng->messages->create($message); const spryng = new Spryng(YOUR_API_KEY) const message = await spryng.message.send({ encoding: 'auto', body: 'Test message', route: 'business', originator: 'Example Company', recipients: ['31612345678', '31687654321'], reference: 'ABC123' })

Spryng is standard linked to more than 50+ systems.

More info

Request your price for authentication SMS

Ask for more information or test our SMS service for free and without obligation. When you create an account, you get free test-credits.

Send to
by SMS
Price indication
  • No start-up or hidden costs

  • Sign-up to receive free test credits

  • You can buy from as little as 100 SMS

Get your
tailor-made price

Would you like to receive a precise price quote for your SMS volume? We’re happy to provide you with a competitive, tailor-made offer, completely obligation-free. Plus, when you purchase just 1,000 SMS credits, we’ll plant a tree in your organisation’s name.

Receive a quotation within one hour

Ready to get started

The highest
security standard

All data is encrypted, in transit (SSL certificates) and at rest (disk encryption for database storage)

  • ISO 27001 certified

  • CSV exchange via SFTP connection

  • NEN 7510 certified

  • Penetration testing

  • GDPR compatible

  • Backups & monitoring

  • Advanced Caller ID

  • End-to-end encryption

We are
here to help! 

Spryng has good contacts with mobile providers, which makes it possible to offer the best quality routes at the best rates. We are also aware of country restrictions and proactively advise our customers about this.

Any questions? Contact us