Announcing LangChain Templates for MongoDB Atlas

Mat Keep and Prakul Agarwal
November 2, 2023 | Updated: March 10, 2025
#genAI #Vector Search

Since announcing the public preview of MongoDB Atlas Vector Search back in June, we’ve seen tremendous adoption by developers working to build AI-powered applications. The ability to store, index, and query vector embeddings right alongside their operational data in a single, unified platform dramatically boosts engineering velocity while keeping their technology footprint streamlined and efficient.

Atlas Vector Search is used by developers as a key part of the Retrieval-Augmented Generation (RAG) pattern. RAG is used to feed LLMs with the additional data they need to ground their responses, providing outputs that are reliable, relevant, and accurate for the business. One of the key enabling technologies being used to bring external data into LLMs is LangChain. Just one example is healthcare innovator Inovaare who is building AI with MongoDB and LangChain for document classification, information extraction and enrichment, and chatbots over medical data.

Now making it even easier for developers to build AI-powered apps, we are excited to announce our partnership with LangChain in the launch of LangChain Templates!

We have worked with LangChain to create a RAG template using MongoDB Atlas Vector Search and OpenAI. This easy-to-use template can help developers build and deploy a Chatbot application over their own proprietary data. LangChain Templates offer a reference architecture that’s easily deployable as a REST API using LangServe.

We have also been working with LangChain to release the latest features of Atlas Vector Search, like the recently announced dedicated vector search aggregation stage $vectorSearch, to both the MongoDB LangChain python integration as well as the MongoDB LangChain Javascript integration. Similarly, we will continue working with LangChain to create more templates, that will allow developers to bring their ideas to production faster.

If you’re building AI-powered apps on MongoDB, we’d love to hear from you. Sign up to our AI Innovators program where successful applicants receive no-cost MongoDB Atlas credits to develop apps, access to technical resources, and the opportunity to showcase your work to the broader AI community.

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Every Operational Data Layer (ODL) Can Benefit From Search
In today's digital landscape, organizations frequently encounter the daunting challenge of managing complex data architectures. Multiple systems, diverse technologies, and a variety of programming languages become entwined, making smooth operations a significant struggle. A frequent example of this issue is seen in some major banks still relying on a banking system built in the 1970s, continuing to run on a mainframe with minimal updates. The consequence is a complex architecture as seen in Figure 1, where data is scattered across various systems, creating inefficiencies and hindering seamless operations. Offloading the data from one or more monolithic systems is a well-proven approach to increase agility and deliver new innovative services to external and internal customers. In this blog we will speak about how search can make Operational Data Layers (ODL) – an architectural pattern that centrally integrates and organizes siloed enterprise data, making it available to consuming applications – an even more powerful tool. Figure 1: Complex Data Architecture Operational Data Store (ODS) as a solution To tackle the complexities of their existing data architecture, organizations have turned to Operational Data Stores (ODS). An ODS serves as a secondary data store, holding data replicated of primary transactional systems as seen in Figure 2. Organizations can feed their ODS with change data capture technologies. Figure 2: Conceptual model of an Operational Data Layer The evolutionary path of adoption Implementing an ODS requires a thoughtful approach that aligns with the organization's digital transformation journey. Typically, the adoption path consists of several stages as seen in Figure 3. Initially, organizations focus on extracting data from one system into their Operational Data Store, allowing them to operate on a more unified dataset. Gradually, they can retire legacy systems and eliminate the need for intermediate data streams. The key benefit of this incremental approach is that it delivers value (e.g. offloading mainframe operations) to the business at every step by eliminating the need for a complete overhaul and minimizing disruption. Figure 3: Evolution of a basic ODS into a system of records Areas of application ODS are used to support the business in three different ways: Data Access Layers allow organizations to free their data from the limitations imposed by data silos and technological variations. Organizations consolidate data from different sources that often use different data storage technologies and paradigms, creating a unified view that simplifies data access and analysis. This pattern is mainly used to enable modern APIs, speed up development of new customer services, and improve responsiveness and resiliency. Operational Data Layer (ODL): The ODL is an internal-focused layer that aids in complex processing workflows. It serves as a hub for orchestrating and managing data across various stages of processing. The ODL empowers organizations to enrich and improve data iteratively, resulting in more powerful and accurate insights. It provides a holistic view of data and process information, an improved customer experience, and reduced operational costs. Developer ODL: Building a developer-focused ODL can provide significant advantages during the development cycle. By making data readily available to developers, organizations can accelerate the development process and gain a comprehensive understanding of their data structures. This, in turn, helps in identifying and addressing issues early on, leading to improved data models and better system performance. In a nutshell, this pattern helps reduce developer training time, streamlines development and speeds up testing and test automation. The power of search in ODS So how can every ODL benefit from search capabilities and how can MongoDB Atlas Search help? Atlas Search plays a crucial role in maximizing the value of an ODS. When we have questions or are searching for an answer, our natural interaction with information is primarily through search. We excel at interpreting imprecise queries and extracting relevant information from vast datasets. By incorporating search capabilities with Atlas Search into an ODS, organizations can empower their users to explore, analyze, and gain valuable insights from their data. Consider the example of a banking organization with a complex web of interconnected systems. Searching for specific transactions or identifying patterns becomes a daunting task, especially when dealing with numeric identifiers across multiple systems. Traditionally, this involved manual effort and navigating through numerous systems. However, with a search-enabled ODS, users can quickly query the relevant data and retrieve candidate matches. This greatly streamlines the process, saves time, and enhances efficiency. Practical examples: Leveraging ODS and Atlas Search Let's explore a few practical examples that demonstrate the power of ODS and the Atlas Search functionality. Operational Data Layer for Payments Processing: A financial institution implemented an ODS-based operational layer for processing payments. By aggregating data from multiple sources and leveraging search capabilities, they achieved faster and more accurate payment processing. This enabled them to investigate issues, ensure consistency, and deliver a superior customer experience. Customer 360 View: Another organization leveraged an ODS to create a comprehensive view of their customers, empowering relationship managers and bank tellers with a holistic understanding. With search functionality, they could quickly locate customer information across various systems, saving time and improving customer service. Post-trade Trading Platform: A global broker operating across 25 different exchanges utilized an ODS to power their post-trade trading platform. By leveraging search capabilities, they simplified the retrieval of data from various systems, leading to efficient and reliable trading operations. Conclusion In the dynamic world of data management, Operational Data Stores (ODS) have emerged as a crucial component for organizations seeking to streamline their data architectures. By adopting an incremental approach and leveraging search functionality such as Atlas Search , organizations can enhance data accessibility, improve operational efficiency, and drive valuable insights. The power of search within ODS lies in its ability to simplify data retrieval, accelerate development cycles, and enable users to interact with data in a more intuitive and efficient manner. By embracing these practices, organizations can unlock the true potential of their data, paving the way for a more productive and data-driven future. For more information on Atlas Search, check out the following resources: Watch this MongoDB.local talk which expands on this blog: Every ODS Needs Search: A Practical Primer Based on Client Experiences Discover MongoDB’s search functionalities Learn how Helvetia accelerates cloud-native modernization by 90% with MongoDB Atlas and MongoDB Atlas Search
November 1, 2023

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Building Gen AI with MongoDB & AI Partners | February 2025
February was big for MongoDB—and, more importantly, for anyone looking to build AI applications that deliver highly accurate, relevant information (in other words, for everyone building AI apps). MongoDB announced the acquisition of Voyage AI , a pioneer in state-of-the-art embedding and reranking models that power next-generation AI applications. Because generative AI is by nature probabilistic, models can “hallucinate”, and generate false or misleading information. This can lead to serious risks, especially in cases or industries (e.g., financial services) where accurate information is paramount. To address this, organizations building AI apps need high-quality retrieval; they need to trust that the most relevant information is extracted from their data with precision. Voyage AI’s advanced embedding and reranking models enable applications to extract meaning from highly specialized and domain-specific text and unstructured data. With roots at Stanford and MIT, Voyage AI’s world-class team is trusted by AI innovators like Anthropic, LangChain, Harvey, and Replit. Integrating Voyage AI’s technology with MongoDB will enable organizations to easily build trustworthy, AI-powered applications by offering highly accurate and relevant information retrieval deeply integrated with operational data. For more, check out MongoDB CEO Dev Ittycheria’s blog post about Voyage AI , and what this means for developers and businesses (in short, delivering high-quality results at scale). Onward! P.S. If you’re in Vegas for HumanX this week, stop by booth 412 to say hi to MongoDB! Welcoming new AI and tech partners The Voyage AI news was hardly the only exciting development last month. In February 2025, MongoDB welcomed three new AI and tech partners that offer product integrations with MongoDB. Read on to learn more about each great new partner! CopilotKit Seattle-based CopilotKit provides open source infrastructure for in-app AI copilots. CopilotKit helps organizations build production-ready copilots and agents effortlessly. “We’re excited to be partnering with MongoDB to help companies build best-in-class copilots that leverage RAG & take action based on internal data,” said Uli Barkai, Co-Founder and Chief Marketing Officer at CopilotKit. “MongoDB made it dead simple to build a scalable vector database with operational data. This collaboration enables developers to easily ship production-grade RAG applications.” Varonis Varonis is the leader in data security, protecting data wherever it lives—across SaaS, IaaS, and hybrid cloud environments. Varonis’ cloud-native Data Security Platform continuously discovers and classifies critical data, removes exposures, and detects advanced threats with AI-powered automation. “Varonis’s mission is to protect data wherever it lives,” said David Bass, Executive Vice President of Engineering and Chief Technology Officer at Varonis. “We are thrilled to further advance our mission by offering AI-powered data security and compliance for MongoDB, the database of choice for high-performance application and AI development. With this integration, joint customers can automatically discover and classify sensitive data, detect abnormal activities, secure AI data pipelines, and prevent data leaks.” Xlrt Xlrt is an automated insight-generation platform that enables financial institutions to create innovative financial credit products at scale by simplifying the financial spreading process. “We are excited to partner with MongoDB Atlas to transform AI-driven financial workflows,” said Rupesh Chaudhuri, Chief Operating Officer and Co-Founder of Xlrt. “XLRT.ai leverages agentic AI, combining graph-based contextualization, vector search, and LLMs to redefine data-driven decision-making. With MongoDB's robust NoSQL and vector search capabilities, we’re delivering unparalleled efficiency, accuracy, and scalability in automating financial processes.” To learn more about building AI-powered apps with MongoDB, check out our AI Learning Hub and stop by our Partner Ecosystem Catalog to read about our integrations with MongoDB’s ever-evolving AI partner ecosystem. And visit the MongoDB AI Applications Program (MAAP) page to learn how MongoDB and the MAAP ecosystem helps organizations build applications with advanced AI capabilities.
March 12, 2025