Data pipelines in TypeScript, on one DuckDB file
croft pulls data from APIs and files, transforms it with SQL or TypeScript, and keeps it fresh on a schedule. It all lives in one DuckDB file, every table gets a generated type, and Claude Code can drive it. Free, open source, no Python.
Croft is an open-source developer tool that enables users to create data pipelines using TypeScript and SQL, pulling data from APIs and files while storing it in a single DuckDB file. It automates data transformation and scheduling, generating types for each table without requiring Python.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.