Open-source connectivity for the modern query stack

Make anything queryable. Start with DuckDB.

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.

Find the right product Talk through an integration

Turn APIs, services, databases, and custom code into tables and functions using DuckDB today.

Choose a starting point

What do you need to make queryable?

Start with the outcome. Each path shows the products that can get you there today.

Start here

Query it

Explore from a browser workspace or bring a production-ready DuckDB distribution to the tools your team already uses.

Cupola Available Browse and query workers in the browser. Haybarn Available Bring DuckDB into the enterprise.
Add capability

Connect it

Install a DuckDB extension or turn an API, service, model, or piece of custom code into a table or function with VGI.

Extensions Available Connect systems and add SQL capabilities. VGI Available Run custom or reusable workers from SQL.
Share safely

Govern it

Apply policy when it is needed, then publish reusable workers so other people and agents can reach the same capability.

Rowfence Preview Enforce row, column, and function access. Orchard Preview Discover, subscribe to, and reuse connectors.

See how it all connects Follow the complete six-step system

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

32 published extensions

237M+ 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.

Talk through your use case View consulting

From the blog

Latest updates

Release notes, product thinking, and technical work from Query.Farm.

View all posts

Iroh

SQL in your browser, code and data on your machine—with Iroh

Call VGI functions and query databases through Grainlift and ADBC, without deploying a public HTTP endpoint or managing TLS certificates.

Rusty Conover October 8, 2026

ADBC

ADBC in the browser: use your existing drivers

Use native ADBC drivers from WebAssembly with Grainlift. Connect PostgreSQL to Haybarn or Cupola in the browser while keeping drivers and credentials on the server.

Rusty Conover October 7, 2026

Grainlift

Your Cloudflare data, in DuckDB

Query Cloudflare's Durable Objects, D1, and Analytics Engine from your browser, the Haybarn/DuckDB command line, or Python through Grainlift and ADBC.

Rusty Conover October 7, 2026

Make your datayour codeyour APIs anything queryable from DuckDB anywhere.