Connection to MotherDuck

To connect a MotherDuck database to the DQC Platform, you need a MotherDuck access token plus the name of the database you want to query. MotherDuck is a managed cloud version of DuckDB — once connected, every table in the selected database becomes available for data quality checks.

Add a MotherDuck connector

To begin:

Go to the Connectors > Data sources screen
Click the MotherDuck tile
Enter the connection parameters described below

Required connection information

Field	Example	Description
Name	`Marketing MotherDuck`	A custom name to identify this connector inside DQC
MotherDuck Token	`eyJhbGciOiJIUzI1NiIsInR5...`	Your MotherDuck access token. Generate one in the MotherDuck UI under `Settings → Tokens`.
Database	`my_db`	Name of the database to connect to. Bound to the connector and cannot be changed after creation.
DB Schema	`main`	Schema inside the database. Defaults to `main` if left empty. Bound to the connector and cannot be changed after creation.

Generate a MotherDuck token

Sign in to the MotherDuck UI
Open Settings > Tokens and create a new read-only token (recommended)
Copy the token immediately — MotherDuck will not show it again
Paste it into the MotherDuck Token field in DQC

Tokens are stored encrypted; only the first and last few characters are displayed in the UI after saving.

What gets imported

All tables in the selected database and schema become available as DQC tables
Views are included if visible to the token's user
Schema and database are fixed per connector — to switch databases, create a new connector

Connect and assign permissions

After saving, DQC validates the token, lists the available tables and lets you pick which ones to expose. To control who can use the connector inside DQC, see Data source access permissions.