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Azure Cosmos DB to Databricks integration

Replicate your Azure Cosmos DB data into Databricks with Weld. Automatically replicate the tables you choose from Azure Cosmos DB into Databricks, keeping your analytics layer up to date and ready for querying.

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4.8 on G2
Azure Cosmos DBSource
WeldWeld
DatabricksWarehouse
Weld · New sync
Azure Cosmos DBSourceAzure Cosmos DBConnected
Tables to sync

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

  • Extract
  • Load
  • Keep in sync
DatabricksDestinationDatabricksReady
azure_cosmos_db schema
  • azure_cosmos_db.Synced
  • azure_cosmos_db.Syncing
  • azure_cosmos_db.Synced
  • azure_cosmos_db.Synced

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How it works

How to set up Azure Cosmos DB to Databricks in Weld.
In the app, with the API or an agent.

Setup guideAPI guideMCP docs
Weld · New Azure Cosmos DB sync
Azure Cosmos DBNew connectionAzure Cosmos DBAuthorised
Connection nameazure_cosmos_db
AuthorizeOpens Azure Cosmos DB to grant read access
Use cases

Why replicate Azure Cosmos DB to Databricks?
Ready for analysis.

Centralizing your Azure Cosmos DB data in Databricks lets you join it with other data sources for cross-platform analytics and deeper insights.

Build reliable dashboards and reports by querying Azure Cosmos DB data directly in Databricks using SQL or your preferred BI tool.

Consolidate data from Azure Cosmos DB alongside other databases and applications in a single cloud data warehouse for a unified analytical layer.

  • Database replication for analytics

    Replicate your Azure Cosmos DB production data to Databricks without impacting database performance. Query historical data without load on your primary database.

  • Centralized data warehouse

    Bring Azure Cosmos DB data into Databricks 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 Azure Cosmos DB to Databricks. Connect BI tools like Looker, Metabase, or Power BI.

Data

What data can you replicate?
From Azure Cosmos DB to Databricks.

Weld syncs the objects the Azure Cosmos DB connector exposes into Databricks, 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 Databricks for you.

    Connect Claude, Cursor, ChatGPT or your own agent to Weld over MCP. It reads the Azure Cosmos DB context, finds the tables it needs and runs the query in Databricks.

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

    Which Azure Cosmos DB tables do we have in Databricks, and which is the largest?

    Looking up what Weld has synced from Azure Cosmos DB.

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

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the Azure Cosmos DB API, loading only new and updated records to minimize data transfer and warehouse costs.
    Change data capture
    For Azure Cosmos DB, Weld can use log-based replication (CDC) to capture inserts, updates, and deletes without querying the entire table on every sync.
    Schema handling
    Weld automatically manages schema changes. If Azure Cosmos DB adds new fields, they're detected and added to the corresponding Databricks 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

    Azure Cosmos DB setup guide

    How to connect Azure Cosmos DB to Weld, step by step.

    Documentation

    Databricks setup guide

    How to connect Databricks to Weld, step by step.

    Connector

    Azure Cosmos DB connector

    Everything Weld does with Azure Cosmos DB.

    Connector

    Databricks connector

    Everything Weld does with Databricks.

    FAQ

    Common questions.
    About Azure Cosmos DB to Databricks.

    Start syncing Azure Cosmos DB to Databricks.

    Set up your Azure Cosmos DB data pipeline in minutes. No credit card required. Free for 14 days.

    Azure Cosmos DBSource
    WeldWeld
    DatabricksWarehouse
    Start for freeTalk to us
    Related

    Related integrations.
    More with Azure Cosmos DB and Databricks.

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