DuckDB by DuckDB Foundation / DuckDB Labs

In-process analytical SQL database for querying Parquet, CSV and JSON files locally.

Price

Free (open source)

you pay only for the compute it runs on

Free tier

Open source

SDK downloads

—

npm @duckdb/node-api · PyPI duckdb

Status

—

no public status page

Pricing

Free tier	—
Cheapest paid plan	—
Usage price	—
Good to know	Embedded library, no hosted service from DuckDB itself; the MCP server commonly used (mcp-server-motherduck) is published by MotherDuck, a separate company.

Open source: free to run on your own hardware; you pay only for the compute. Checked

API	Free	Price	SDK downloads / wk	GitHub stars	MCP
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