Harper

Harper has been named a Sample Vendor in the Gartner® Hype Cycle™ for Digital Commerce, 2026 in the Front-End Cloud category.

We believe the next evolution of front-end cloud is about what the runtime can do.

Harper Named a Sample Vendor in the Gartner® Hype Cycle™ for Digital Commerce, 2026 Harper was named a 2026 Gartner Hype Cycle for Digital Commerce Sample Vendor, recognized in Front-End Cloud for its unified runtime combining data, application logic, messaging, and agent development together.

We’re going LIVE to build the ultimate river flow forecasting app. We're fusing live USGS stream gauges + snowpack data with an AI agent to predict flows based on historic records. We're also building a personal river log feature! 📝🤖

https://www.youtube.com/watch?v=RLT8w5udT04

Harper 5.0 is live.

Our core runtime is now fully open source (Apache 2.0), with Harper Pro source-available under ELv2. Now with RocksDB + LMDB support.

One platform for database, cache, messaging, and app logic—built for performance and scale.

Read more:

Harper Launches 5.0: Fully Open-Source Runtime for Building and Deploying Cost-Efficient Agents | HackerNoon Harper 5.0 launches with an open-source core, RocksDB support, and a unified runtime for AI agents—cutting latency and simplifying modern app development.