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CSV via SFTP to MotherDuck integration

Connect CSV via SFTP to MotherDuck and automatically sync your file storage data. Weld extracts data from CSV via SFTP, loads it into MotherDuck, and lets you transform the data using SQL or dbt, no custom scripts required.

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4.8 on G2
CSV via SFTPSource
WeldWeld
MotherDuckWarehouse
Weld · New sync
CSV via SFTPSourceCSV via SFTPConnected
Tables to sync

Your own tables, picked when you set up the sync.

  • Extract
  • Load
  • Keep in sync
MotherDuckDestinationMotherDuckReady
sftp__csv schema
  • sftp__csv.Synced
  • sftp__csv.Syncing
  • sftp__csv.Synced
  • sftp__csv.Synced

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How it works

How to set up CSV via SFTP to MotherDuck in Weld.
In the app, with the API or an agent.

API guideMCP docs
Weld · New CSV via SFTP sync
CSV via SFTPNew connectionCSV via SFTPAuthorised
Connection namesftp__csv
AuthorizeOpens CSV via SFTP to grant read access
Use cases

Why sync CSV via SFTP to MotherDuck?
Ready for analysis.

Centralizing your CSV via SFTP data in MotherDuck lets you join it with other data sources for cross-platform analytics and deeper insights.

Build reliable dashboards and reports by querying CSV via SFTP data directly in MotherDuck using SQL or your preferred BI tool.

  • Centralized data warehouse

    Bring CSV via SFTP data into MotherDuck alongside other sources to create a single source of truth for your organization.

  • Automated reporting

    Replace manual exports and spreadsheet-based reporting with automated pipelines from CSV via SFTP to MotherDuck. Connect BI tools like Looker, Metabase, or Power BI.

Data

What data can you sync?
From CSV via SFTP to MotherDuck.

Weld syncs the objects the CSV via SFTP connector exposes into MotherDuck, and you choose which tables and fields to include. The connector's docs list what is available.

    Weld MCP server

    Ask your agent.
    It queries MotherDuck for you.

    Connect Claude, Cursor, ChatGPT or your own agent to Weld over MCP. It reads the CSV via SFTP context, finds the tables it needs and runs the query in MotherDuck.

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

    Which CSV via SFTP tables do we have in MotherDuck, and which is the largest?

    Looking up what Weld has synced from CSV via SFTP.

    ●weld·search_available_references
    ⎿raw.sftp__csv.*
    tables, columns and freshness
    ●weld·get_reference_schema
    ⎿columns, types and nullability
    ●weld·run_query
    ⎿select count(*) from {{raw.sftp__csv.…}}
    submitted
    ●weld·get_query_status
    ⎿DONE
    ●weld·get_query_result
    ⎿rows returned
    ✓Answered from CSV via SFTP data in MotherDuck
    >Ask about your CSV via SFTP data
    Under the hood

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the CSV via SFTP API, loading only new and updated records to minimize data transfer and warehouse costs.
    Schema handling
    Weld automatically manages schema changes. If CSV via SFTP adds new fields, they're detected and added to the corresponding MotherDuck tables.
    Data freshness
    Sync frequency depends on your Weld plan. Most connectors support schedules from every 5 minutes up to daily intervals.
    Security
    All data is encrypted in transit (TLS) and at rest. Weld is SOC 2 Type II compliant and supports IP whitelisting for database connections.
    Resources

    Keep reading.
    Guides, docs and schema.

    Documentation

    MotherDuck setup guide

    How to connect MotherDuck to Weld, step by step.

    Connector

    CSV via SFTP connector

    Everything Weld does with CSV via SFTP.

    Connector

    MotherDuck connector

    Everything Weld does with MotherDuck.

    FAQ

    Common questions.
    About CSV via SFTP to MotherDuck.

    Start syncing CSV via SFTP to MotherDuck.

    Set up your CSV via SFTP data pipeline in minutes. No credit card required. Free for 14 days.

    CSV via SFTPSource
    WeldWeld
    MotherDuckWarehouse
    Start for freeTalk to us
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    More with CSV via SFTP and MotherDuck.

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