The most interoperable IoT platform ever – now in Public Beta


Give your firmware development cloud-like agility and continuously improve already deployed devices: by live-debugging your connected hardware and pushing firmware updates over-the-air, without ever risking the loss of a device.


Benefit from a lifetime of managed connectivity and security patches delivered by Twilio – all while building in your choice of language, your OS, your cloud, using your toolchain.


This is Microvisor. 


STM32U585 Microvisor dev boards now available in limited quantities!

Key capabilities

Managed connectivity and security for life

Twilio provides 24/7/365 connectivity (Wi-Fi, Ethernet, BT, BT-LE, or Cellular) and patches security holes for you, for the lifetime of your device


Secure remote debugging with failsafe firmware OTA

Twilio offers a secure way to attach a debugger of your choice to debug individual devices in the field, then push updates OTA without bricking your devices


Secure boot and secure factory provisioning 

Twilio ensures that only your code runs on your devices and neither your code nor your hardware can be compromised during manufacturing


Read Architecture Whitepaper

Business benefits

Faster time-to-market

For the first time ever, apply agile development practices to embedded (IoT) engineering: continue to develop and improve your firmware after mass manufacturing and field deployment. Focus on your value-added application, don’t spend time and money on building out common infrastructure.


Lower TCO

Lower your total cost of ownership by reducing required staffing for building out your IoT infrastructure, reducing possible product recalls through continuous improvement, and lowering your infrastructure maintenance cost.


Full interoperability

Microvisor is completely unopinionated. Re-use your code and develop in any language, on any OS, any cloud, with any CI/CD pipeline and any toolchain.


Lower business risk

Rely on Twilio to keep your devices connected, retain 24/7/365 access for failsafe firmware updates, and keep your entire stack secure.



“Twilio Microvisor brings an elegant approach to secure cloud connectivity and fleet management. It helps STM32 users seamlessly perform remote debug and firmware upgrades and connect to their cloud service of choice while they continue to use their favorite RTOS.”



“CDI has standardized on ST Microelectronics chips for our highly portable oil and gas pipeline equipment. Getting managed connectivity through Microvisor on Twilio's Super SIM with the new STM32U585 MCU fits our needs perfectly.”



“Connectivity is a must for our energy-flexibility-as-a-service technology solutions, but not a key differentiator in itself. Twilio Microvisor gives us managed connectivity with real-time processing capability that we need for growing industry technical demands.”