
Order a Relay Dev Kit
A mobile development platform like no other. Build voice applications and interact with sensor events like NFC & GPS Location. Includes 1 year of cellular service, two Relay devices, 10 NFC tags, two BLE Beacons and lanyard. Order a kit here!
While you await delivery of your dev kit, take a look at some demo videos and the SDK docs.
SDK Concepts
SDK Action APIs
Developing with the SDK
SDK API Reference
Relay HTTP APIs
SDK Cloud Hosting & Deployment
SDK Migration
Relay in Action: Alexa
Use a workflow to message a Relay from an Alexa device. See sample code here.

A mobile development platform like no other
- Programmable voice interaction and sensor events through NFC taps, GPS geofencing and Webhooks.
- Write custom workflows with the [Relay SDKs] (/docs/relay-sdk) (Node, Python, GoLang, .NET and Java).
- Integrate existing systems or create your own custom solutions.
- Active 4G LTE connectivity out of the box allows rapid over-the-air provisioning.