Two Factor Code

Access to

Combine a unique identifier device (aka a mobile phone) with contextual data, and you have secure, user-friendly two-factor authentication with programmable, feature-rich APIs.

SPEAK WITH AN EXPERT

Verify users and implement 2FA

without hassle

Secure your customers’ accounts and transactions with user-friendly two-factor authentication (2FA) with SMS and voice. Our feature-rich APIs help you verify new users, reduce fake accounts and spam, build user trust, and minimize account takeovers with channels that don’t require smartphones, apps or data connection.

OTP SMS

The most popular way to send one-time passcodes is easy to integrate into your existing authentication infrastructure and services.

2FA

A feature-rich, robust API that detects the phone number type (mobile or landline) and sends the passcode via the appropriate channel (SMS or voice). Complete with multi-language and customization support.

2FA Smart Contract

World’s first smart contract built to connect Blockchain applications to a 2FA API in the real world. Find out how tyntec connects the on-chain and off-chain applications.

Use Cases

Here are some great ways

to use Authentication in your business

User Verification

Sign up a new user without getting fooled by fake account bots

Give new users immediate, secure access with a one-time verification code – and keep out the fake users and spam.
Transaction Verification

Protect your customers – and your revenue

Defeat fraudulent online transaction and comply with consumer protection regulations with user-friendly two-factor authentication.
Account Protection (via SMS or Voice)

Prevent user account takeovers and unauthorized access

Provide peace of mind to users by verifying access from unidentified device or location with geolocation-aided, contextual authentication – and protect your brand reputation.

Authentication Explained

Clear and Concise

Authentication made easy

This is how it works

Authentication made easy - This is how it works

1. User registers on your website or app and provides a mobile phone number for verification

2. tyntec’s API can automatically choose the channel to send the verification code (SMS or voice call) — or the enterprise may give the user the option to choose

3. Both SMS and voice trigger the enterprise’s web back-end and calls the tyntec 2FA API with the provided phone number

4. tyntec sends the user a unique one-time password (OTP) via SMS or voice call

5. User enters the OTP on the website or app to verify his identity

6. The enterprise’s back-end sends an API call to the tyntec 2FA service and tyntec replies, confirming whether the OTP entered by the user is correct or not

7. If the OTP is correct, the website back-end can authorize the registration.

Key factors to consider for your authentication method

When does authentication become really critical?

Is there a single most important factor when choosing an authentication method? (hint: users first)

Is authentication bad for Customer experience?

What are the pros and cons of different methods?

Why is SMS still the most popular delivery method for 2FA?

Try our Demo

Use our 2FA API

Choose which service

works best for you

2FA Demo

Prefer to test first?

Go ahead and send a passcode!

2FA Demo

Here’s a chance to test 2FA yourself. Simply type in your phone number below. Click SEND and we’ll send you a one-time passcode – either by text or voice. You can even select the language of your choice.

# Send an otp with minimum mandatory values:

curl \
-X POST "https://api.tyntec.com/2fa/v1/otp?number<TEL_NUMBER>"
-H "accept: application/json" \
-H "apikey: <YOUR_API_KEY>"

# Check an OTP code:

curl \
-X POST "https://api.tyntec.com/2fa/v1/otp/<OTP_ID>/check?otpCode=<OTP_CODE>"
-H "accept: application/json" \
-H "apikey: <YOUR_API_KEY>"

See tech docs

Features

Make the most of

tyntec's advanced features

Assured, speedy delivery

Using our direct connections to telecom operators, we ensure fast, secure delivery to the endpoint – and share the monitoring data with our customers.

Frictionless integration

Stronger authentication with less coding – welcome to our simple, robust authentication APIs. Developers can configure features according to their needs, including password generation, language templates and more.

Real-time verification

Building on our industry-leading number information service, we can dynamically adjust user authentication requirements depending on the threat level, using real-time phone number information such as roaming information, user location, and phone status (on/off).

API

Ready to start?

Get our REST API - and rest easy

Use our 2FA API

2FA API

Guide

Need an overview?

Read our authentication guide

DOWNLOAD THE GUIDE

MFA Guide

Transparent Pricing

There are legal restrictions that apply to Germany. Learn more

EUR

EUR
USD

There are legal restrictions that apply to Germany. Learn more

Country

Currency

Product family (field_product_family) (selective)

Learn more

Local SMS

Send a message

Starting from

0,0426€

Receive a message

free

Operator Sort descending	Send a message	Receive a message
Operator Airdata AG	Send a message 0,0616€	Receive a message free
Operator All landline Germany	Send a message 0,0720€	Receive a message free
Operator Drillisch Online AG	Send a message 0,0616€	Receive a message free
Operator E-Plus Mobilfunk GmbH & Co. KG	Send a message 0,0707€	Receive a message free
Operator Ericsson GmbH	Send a message 0,0616€	Receive a message free
Operator Lycamobile Germany	Send a message 0,0720€	Receive a message free
Operator Qualcomm CDMA Technologies GmbH	Send a message 0,0616€	Receive a message free
Operator SIPgate	Send a message 0,0426€	Receive a message free
Operator T-Mobile Deutschland GmbH	Send a message 0,0720€	Receive a message free
Operator TelcoVillage GmbH	Send a message 0,0720€	Receive a message free
Operator Telefonica O2 Germany (E-Plus)	Send a message 0,0707€	Receive a message free
Operator Truphone Germany	Send a message 0,0707€	Receive a message free
Operator Vodafone D2 GmbH	Send a message 0,0720€	Receive a message free

Some legal restrictions apply. Learn more

Learn more

Short Code

SEND A MESSAGE

0,086€

MONTHLY

1.300,00€

RECEIVE A MESSAGE

free

SETUP

3.900,00€

Some legal restrictions apply. Learn more

Learn more

Virtual Phone Number - Landline

SEND A MESSAGE

0,085€

MONTHLY

1,11€

RECEIVE A MESSAGE

0,013€

SETUP

free

Some legal restrictions apply. Learn more

Learn more

Virtual Phone Number - Mobile

SEND A MESSAGE

0,072€

MONTHLY

33,00€

RECEIVE A MESSAGE

free

SETUP

free

Some legal restrictions apply. Learn more

Get ready for the CPaaS experience.

Get started and get 100 free test units.

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Ready to start?

Get in touch.

Our team is happy to provide you with a demo of our solutions and answer your sales questions.
Fill out the form and we will be in touch as soon as possible.

Learn more about 2FA and beyond

Protecting customers without hassle

Balancing usability and security

tyntec's partner Isaac Potoczny-Jones, CEO of Tozny, a leader in multi-factor authentication systems, discuss the common mistakes brands make with security.

Authentication made easy

How does our 2FA API work?

Find out how to secure your customer journey without sacrificing user-friendliness with tyntec’s 2FA API.

Watch now

Two Factor Code

Verify users and implement 2FA

without hassle

OTP SMS

2FA

2FA Smart Contract

Use Cases

Here are some great ways

to use Authentication in your business

User Verification

Transaction Verification

Account Protection (via SMS or Voice)

Authentication Explained

Clear and Concise

Authentication made easy

This is how it works

Choose which service

works best for you

2FA Demo

Prefer to test first?

Go ahead and send a passcode!

Features

Make the most of

tyntec's advanced features

API

Ready to start?

Get our REST API - and rest easy

Guide

Need an overview?

Read our authentication guide

Transparent Pricing

Get ready for the CPaaS experience.

Ready to start?

Get in touch.

Our team is happy to provide you with a demo of our solutions and answer your sales questions. Fill out the form and we will be in touch as soon as possible.

Related content

Learn more about 2FA and beyond

Protecting customers without hassle

Authentication made easy

Our team is happy to provide you with a demo of our solutions and answer your sales questions.
Fill out the form and we will be in touch as soon as possible.