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MongoDB Flex

STACKIT MongoDB Flex is a fully managed MongoDB database service which automates maintenance, patching and updates. It's fully compatible to native MongoDB database, the most popular NoSQL database for modern apps. MongoDB is a cross-platform document-oriented database program.
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Content

Basics

Understand the basic architecture of MongoDB Flex, learn about key features and how to use the database effectively.

Getting started

Create your first MongoDB Flex instance. Follow the guides to build a working setup and connect in minutes.

How-tos

Manage instances, users, and backups. Connect with various tools such as Cloud Foundry and Terraform.

Tutorials

Go from theory to a working application. Combine multiple concepts and build complex projects using MongoDB Flex.

Reference

Find API documentation, CLI commands, performance metrics and an overview of project roles and permissions.

Troubleshooting

Resolve common issues to keep your MongoDB Flex deployment running steadily.

FAQ

Quickly find answers to frequently asked questions about MongoDB Flex.

Release notes

Discover what's new in MongoDB Flex, including added features, bug fixes and deprecation notices.

Features

Section titled “Features”
  • Document-oriented storage: Store data in flexible, JSON-like documents (BSON). This means you can model complex, hierarchical data naturally. No need to break everything into rigid tables.
  • Dynamic schemas: Add or change fields on the fly without schema migrations. Perfect for agile teams and fast-moving projects where data structures evolve constantly.
  • Powerful query language: Use rich queries, filters, and aggregations to access and transform your data. MongoDB’s query language supports deep lookups, sorting, joins (via $lookup), and full-text search.
  • Indexing for performance: Accelerate queries with smart indexing options. Single field, compound, geospatial, text, and more to optimize performance exactly where you need it.
  • Strong security model: Protect your data with built-in features like authentication, role-based access control, encryption at rest and in transit, and auditing.

Use cases

Section titled “Use cases”
  • Data consolidation & personalization: Unify data from multiple sources into a single, accessible structure. Build personalized user experiences, dynamic dashboards, and customer profiles without rigid schemas holding you back.
  • IoT & sensor data management: Handle massive streams of time-series data from connected devices. MongoDB’s flexible document model makes it easy to store and query evolving sensor formats and telemetry data.
  • Mobile & web app development: Rapidly build and iterate on user-facing applications. With JSON-like document storage, you can update data structures without downtime. That’s ideal for mobile apps, content platforms, or SaaS products.
  • Microservices & event-driven architectures: Design loosely coupled systems with independent services. MongoDB Flex supports decentralized development, allowing each service to manage its own data in a scalable, consistent way.
  • E-Commerce & catalog management: Maintain complex product catalogs with varied attributes. MongoDB lets you store product data in rich, nested documents that can adapt to different categories and merchandising rules.

Latest updates

Section titled “Latest updates”
  • deprecated

    Deprecation of MongoDB Flex Performance Class Upgrades

    We would like to inform you that the performance class upgrade functionality of MongoDB Flex will reach the end of life by November 1, 2026. This is due to technical limitations. Our storage team will work on making online performance class changes available until then. In this case the functionality will not be deprecated. We will keep you informed. Our Help Center is always at your disposal if you have any questions.

  • announcement

    MongoDB Flex Performance Advisor is available

    From 05.08.2025 we can offer you a new service MongoDB Flex Performance Advisor in the STACKIT Portal and also in the STACKIT API.

    The PA is visible after you have entered your data into your instance. Without data in your instance, this feature will not show any results as it needs queries and data to analyze.

    Our Help Center is always at your disposal if you have any questions.

  • deprecated

    MongoDB Version 6.0 is getting deprecated

    The STACKIT MongoDB Flex Version 6.0 will soon reach the end of support on July 01, 2025.

    All existing services with the MongoDB Version 6.0 must be updated to MongoDB Version 7.

    If you need assistance for updating your data to the new version or if there are any questions, our support is always available via the Help Center.

MongoDB Flex Release notes