Castles CTOS Development Suite 7.0

Castles CTOS Development Suite by CASTLES is an integrated toolkit for building, testing, and deploying applications on CTOS-powered payment terminals. It provides a unified set of APIs, development tools, and documentation so software vendors, acquirers, and integrators can create secure, high-performance apps that leverage terminal hardware and peripherals. From payment acceptance to value-added services like loyalty, QR, and receipts, the suite helps teams bring solutions to market faster and maintain consistent behavior across Castles devices.

Key capabilities:

• Unified APIs for accessing card readers, contactless/NFC, PIN pads, printers, barcode scanners, and other peripherals
• Sample projects and comprehensive documentation to speed onboarding
• Build, packaging, signing, and deployment utilities for moving from development to production
• Logging and diagnostics to simplify testing and troubleshooting
• Support for networked applications that connect over common terminal communication options
• Tools and guidance aligned with industry security practices for POS environments

With the CTOS Development Suite, developers can streamline their workflows, reduce integration risk, and deliver reliable applications tailored to the Castles terminal ecosystem.

Castles CTOS Development Suite is developed by CASTLES and is used by 1 user of Software Informer. The most popular versions of this product among our users are: 5.6 and 6.0.