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Network Application Programming Interfaces (APIs) deliver the future of 5G network functionality. ## Activate advanced network API capabilities. __Our__ Information APIs __leverage data to build more secure, seamless, and efficient applications—like Check Device Status, Location Verification, and SIM Swap.__ ​​Utilize the power of network API data.​ ​​We assist in integrating advanced network information APIs into your applications to offer improved and innovative user experiences.​ ## Fraud detection. [Fraud detection.](https://www.t-mobile.com) Fraud detection. Enhance the security of your applications with __SIM Swap__, __Location Verification__, and __Check Device Status__ APIs to improve fraud detection, prevent identity theft, and safeguard against financial losses.  ## Fraud detection. ## Silent authentication.   [Silent authentication.](https://www.t-mobile.com)   Silent authentication. Create a game-changing, frictionless user experience with __Number Verification__ and __Know Your Customer__ APIs to enable seamless, secure, and password-less user verification.  ## Silent authentication. ## ​​Optimized experience​. [​​Optimized experience​.](https://www.t-mobile.com) ​​Optimized experience​. ​​Improve reliability, customization, and geo-restriction of content with __Check Device Status__ and __Location Verification__ APIs to increase the quality of service and manage licensing compliance.​  ## ​​Optimized experience​. ## Our network information APIs. [Our network information APIs.](https://www.t-mobile.com) Our network information APIs. ## Our network information APIs.  ## SIM Swap ​Detects if a phone number has been transferred from one SIM to another on a specific device.  ## Location Verification Confirms a user’s device location using their phone number or IP address.  ## Number Verification Verifies a user’s phone number on a device against network information like SIM or IP address.​  ## Know Your Customer Validates customer information associated with a specific phone number.  ## Check Device Status ​​Real-time notifications on device network status changes, including reachability, roaming status, and current connection type.​ ​​Additional advanced API capabilities.​ ​​Discover how you can start building with our advanced communication and performance APIs—alongside the expertise from a leader in telecom.  ## ​​Network performance APIs​ [​​Network performance APIs​](https://www.t-mobile.com) ​​Network performance APIs​ ​​Enhances reliability and user experience of your application, while maximizing resource efficiency with 5G APIs—network slicing, Quality-on-Demand (QoD), SASE, and Edge Orchestration.   [​​Learn more from DevEdge​](https://devedge.t-mobile.com/?icid=TMWS_TMO_P_TMWSMGPHNX_CF2B31C7E17AA25F42498) ## ​​Network performance APIs​  ## ​​Communication APIs​ [​​Communication APIs​](https://www.t-mobile.com) ​​Communication APIs​ ​Boost user engagement, improve support, and create interactive experiences in applications with traditional APIs—SMS, MMS and in-app messages, voice and video calls, and push notifications. [​​Learn more from DevEdge​](https://devedge.t-mobile.com/?icid=TMWS_TMO_P_TMWSMGPHNX_CF2B31C7E17AA25F42499) ## ​​Communication APIs​ Connect with us. Just provide a few details to get the conversation started. 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