Stream data from MongoDB to Amazon S3 Iceberg (delta updates)
Sync your MongoDB data with Amazon S3 Iceberg (delta updates) in minutes using Estuary Flow for real-time, no-code integration and seamless data pipelines.
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MongoDB connector details
The Estuary MongoDB connector captures data from MongoDB collections into Flow in real time using change streams. It continuously streams inserts, updates, and deletes as CDC events while performing an initial snapshot for completeness.
- Streams real-time CDC events via MongoDB change streams
- Supports batch modes (snapshot or incremental) for non-streaming collections
- Performs a live backfill while reading ongoing updates
- Compatible with MongoDB Atlas, self-hosted clusters, and DocumentDB / Cosmos DB variants
- Enables secure SSH tunneling for private network connectivity

Amazon S3 Iceberg (delta updates) connector details
This connector materializes Flow collections into Apache Iceberg tables stored in Amazon S3. It batches delta updates inside Flow, converts them to Parquet files, and appends them to Iceberg tables on a schedule you configure, making it efficient for near real-time CDC-style updates.
- Materializes Flow collections into Iceberg tables on Amazon S3
- Designed for delta updates, enabling low-latency CDC replication
- Compatible with AWS Glue or Iceberg REST Catalogs for metadata management
- Configurable upload intervals to balance freshness and cost
- Supports Iceberg V2 column types for flexible schema handling
How to integrate MongoDB with Amazon S3 Iceberg (delta updates) in 3 simple steps using Estuary Flow
Connect MongoDB as Your Real-Time Data Source
Set up a real-time source connector for MongoDB in minutes. Estuary captures change data (CDC), events, or snapshots — no custom pipelines, agents or manual configs needed.
Configure Amazon S3 Iceberg (delta updates) as Your Target
Choose Amazon S3 Iceberg (delta updates) as your target system. Estuary intelligently maps schemas, supports both batch and streaming loads, and adapts to schema changes automatically.
Deploy and Monitor Your End-to-End Data Pipeline
Launch your pipeline and monitor it from a single UI. Estuary Flow guarantees exactly-once delivery, handles backfills and replays, and scales with your data — without engineering overhead.
Estuary Flow in action
See how to build end-to-end pipelines using no-code connectors in minutes. Estuary Flow does the rest.
Why Estuary Flow is the best choice for data integration
Estuary Flow combines the most real-time, streaming change data capture (CDC), and batch connectors together into a unified modern data pipeline:

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Frequently Asked Questions
- Set Up Capture: In Estuary Flow, go to Sources, click + NEW CAPTURE, and select the MongoDB connector.
- Enter Details: Add your MongoDB connection details and click SAVE AND PUBLISH.
- Materialize Data: Go to Destinations, choose your target system, link the MongoDB capture, and publish.
What is MongoDB?
How do I Transfer Data from MongoDB?
What are the pricing options for Estuary Flow?
Estuary offers competitive and transparent pricing, with a free tier that includes 2 connector instances and up to 10 GB of data transfer per month. Explore our pricing options to see which plan fits your data integration needs.
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