Developers API

Scalable, flexible & secure — Our open API makes integration a breeze.

API Documentation

In order to maintain transparency and allow developers to integrate with Cayan, we’ve opened the API documentation for various solutions offered by Cayan. If you’re interested in integrating with any of our solutions, please contact us today.

Genius Transaction Processing

Process transactions using the Genius device

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Genius Line Item Display

Display line item details on the Genius Device

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Genius Your Way

Use the CED as a standard peripheral

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Merchantware 4

Merchantware4 web service documentation and resources

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Cayan Checkout

Process transactions using simple script based shopping cart solution.

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Transport 4

Process transactions using the Transport hosted payments page

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Store and Forward

Offline transaction processing with Store and Forward

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Knowledge Base

Tips and best practices for integrating with Genius.

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Resources

Additional documentation resources and downloads

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Interested in what Cayan’s developers are up to? Check out the Developers Blog

Part #3: How Cayan helps protect merchants from costly downtime | 03/10/17

Dominic Lachowicz

In the third and final article in this series, we'll dive into detail about Cayan's high availability architecture, disaster recovery and redundancy, for how we can deliver best in class uptime and service.

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Part #2: How Cayan helps protect merchants from costly downtime | 03/08/17

Dominic Lachowicz

High availability, and how merchant can help reduce downtime for their credit card systems

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Part #1: How Cayan helps protect merchants from costly downtime | 03/06/17

Dominic Lachowicz

Whenever merchants' credit card systems go down, they lose sales, having to turn away customers who can't pay with cash or a check. See how Cayan helps protect merchants from costly downtime.

Read more