# EVRYTHNG Developer Hub Documentation > Powering smarter products for world leading brands. Append .md to any documentation page URL to get its markdown version. ## Guides - [Documentation](https://developers.evrythng.com/docs.md): EVRYTHNG Developer Hub documentation ## API Reference - [Commissioning](https://developers.evrythng.com/reference/commissioning.md) ## Pages - [Activate](https://developers.evrythng.com/page/activate.md) - [Amplify](https://developers.evrythng.com/page/amplify.md) - [Authenticate](https://developers.evrythng.com/page/authenticate.md) - [Page Not Found](https://developers.evrythng.com/page/custom.md) ## Changelog - [Changes to our MQTT broker](https://developers.evrythng.com/changelog/changes-for-our-mqtt-broker.md) - [Redirector Scoping](https://developers.evrythng.com/changelog/redirector-scoping.md) - [Adding Support for GS1 Digital Link Compression](https://developers.evrythng.com/changelog/adding-support-for-gs1-digital-link-compression.md) - [Follow user interactions with evrythng.js v5.5.0](https://developers.evrythng.com/changelog/follow-interactions-with-evrythngjs-v550.md) - [evrythng.js SDK v5.0.0 Released](https://developers.evrythng.com/changelog/evrythngjs-sdk-v500-released.md) - [Real-time Web Scanning with scanthng.js](https://developers.evrythng.com/changelog/real-time-native-web-scanning-with-scanthngjs.md) - [Creating Custom Widgets Walkthrough Now Available](https://developers.evrythng.com/changelog/creating-custom-widgets-walkthrough-now-available.md) - [New GS1 Digital Link Tools Available](https://developers.evrythng.com/changelog/new-gs1-digital-link-tools-available.md) - [Introducing the EVRYTHNG CLI](https://developers.evrythng.com/changelog/introducing-the-evrythng-cli.md) - [Using API Description at EVRYTHNG](https://developers.evrythng.com/changelog/using-api-description-at-evrythng.md)