Harper Launches 5.0: Fully Open-Source Runtime for Building and Deploying Cost-Efficient Agents

Harper 5.0 makes its core fully open source under Apache 2.0, adds RocksDB alongside LMDB, and doubles down on its unified runtime for agentic engineering. By combining database, cache, messaging, and logic into a single process, it reduces latency and simplifies deployment. Built for AI-driven development, it enables faster, cheaper, and more scalable applications.