Harper
One Runtime for Apps, Agents, and Data

Harper is an in-process runtime that combines a database, REST API layer, caching, real-time pub/sub, vector search, and blob storage into a single deployable unit. Developers define their schema in GraphQL and instantly get a full REST and GraphQL API with no controllers, migrations, or ORMs required. It supports deployment to a distributed edge network with a single CLI command.
Harper reads a GraphQL schema file to auto-generate REST and GraphQL APIs, handles caching, pub/sub, vector indexing, and blob storage in-process, and deploys the entire backend to a distributed fabric network via a single CLI command.
backend developers and fullstack engineers building production apps or AI agents
Background.
- Status
- launched
- Business model
- freemium
- Company
- HarperDB
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