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Illustration of Harper unified runtime with layered, modular stack: GraphQL, API, REST, WebSocket, and MQTT interfaces above cache and in-memory services, built on blob, database, NoSQL, and vector storage. Floating code and agent cubes represent programmable intelligence, all integrated into a cohesive, high-performance platform.
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Build, scale, and deploy Node apps on a global cluster — no config, no patchwork, just code.
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INSTALL
Apache 2.0
Free to Use
Free to Modify
Free to Sell
Install with npm
npm install -g harperdb
harperdb
Verify Download
curl http://localhost:9925/health
Build
Build with AI Agents
One command scaffolds a full-stack Harper project with built-in skills files that teach any coding agent how to build, test, and deploy with Harper.
# Tell your agent to (copy/paste):

Scaffold this project with npm create harper@latest
Build everything with Harper. Check the /skills files to learn more.
Learn the Basics
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Understand how Harper applications work by creating a simple app with APIs, data storage, and global deployment.
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