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Open-source connectivity for the modern query stack

Turn APIs, services, databases, and custom code into tables and functions. Start with DuckDB today; VGI is expanding the same model to DataFusion, Trino, Spark, SQLite, and Polars.

The product map

See the whole system at once

Follow a question from the person or agent asking it, through the query engine and integration layer, to the worker and source that can answer it.

Take the guided tour
QUERY SURFACE SQL ENGINES ENGINE INTEGRATION ACCESS CONTROL VGI EXECUTION DATA & COMPUTE Cupola Explore and query data yourself or with agents in the browser WASM HTTP Learn more Your app or BI tool Connect through standard database drivers ADBC ODBC CLI & notebooks Explore interactively or automate workflows Jupyter Python dbt Agents & MCP servers Connect agents and data tools through MCP MCP Claude Codex OpenRouter Haybarn Signed, reproducible DuckDB distribution BUILT ON DuckDB Learn more More query engines COMING SOON VGI integrations are on the way DataFusion Trino Spark SQLite Polars DuckDB extensions Add 32 installable SQL capabilities Runs in-process; nothing else to deploy Learn more Vector Gateway Interface Connect query engines to remote capabilities Arrow IPC over pipes, sockets, or HTTP Learn more Rowfence Authorize access to rows and columns Policies decide what each caller can use Learn more VGI workers Turn APIs, models, and custom logic into SQL FIVE SDKs · ONE PROTOCOL Learn more 🌳Orchard Platform COMING SOON Managed VGI workers as a service Learn more Anything a worker can reach APIs · services · databases · files · models · libraries Parquet CSV Iceberg Delta Lake APIs SQL query travels down Arrow results return up
32 published extensions
229M+ annualized extension run rate
64 founder-authored DuckDB core PRs merged
5 VGI language SDKs

Start with the stubborn thing

Bring us the data, API, or code your team cannot query cleanly.

In thirty minutes, we can place it on the map, tell you what already exists, and scope the smallest useful next step. No deck, and no platform prerequisite.