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What is Amazon Kendra?

Last Updated : 06 Apr, 2023
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Pre-requisites: AWS 

A popular tool known as The Amazon Forecast is an intelligent search engine powered by machine learning (ML). For users’ websites and applications, Amazon Kendra reimagines business searches so that users’ employees and customers can easily find the information they require, even if it is dispersed across numerous locations and content repositories within the organization. With Amazon Kendra, users can stop sifting through heaps of unstructured data and instead find the pertinent responses to their questions whenever they need them. There is no need to set up servers or train or deploy machine learning models since Amazon Kendra is a fully managed service. Use natural language queries in addition to fundamental keywords to find the information you require. Whether it’s a text excerpt, FAQ, or PDF file, Amazon Kendra will offer a detailed response from within. Thanks to this service, employees can easily locate the information they need even when it is spread across multiple places and get the right responses to their questions whenever they need them.

Benefits of Amazon Kendra

The days of sifting through long lists of links and reading academic papers in search of information that will benefit users are over, thanks to Amazon. Natural language search capabilities, in contrast to traditional search technologies, provide users with the information they need quickly and accurately, regardless of where the content is housed within their company, and it does this by instantly locating pertinent responses. Content from repositories like Microsoft SharePoint, Amazon Simple Storage Service (S3), ServiceNow, Salesforce, and Amazon Relational Database Service (RDS) may be readily combined using Amazon Kendra into a centralized index. This centralizes access to knowledge by enabling users to rapidly search across all of their corporate data and discover the most correct response. Amazon Kendra’s deep learning models have been pre-trained across 14 industrial domains, enabling it to extract more precise results in a range of business usage scenarios. Users can also modify the order of data sources, authors, or freshness directly, as well as by applying custom tags, which fine-tunes the search results. Amazon Kendra’s setup is quicker than that of conventional search solutions, giving consumers quick access to Amazon Kendra’s sophisticated search features. Users can easily build an index, link pertinent data sources, and create a fully functional and customizable search experience with only a few clicks, all without any coding or machine learning expertise, and it deploys in only a few clicks.

Use cases of Amazon Kendra

  • Research and development are accelerated: Scientists and developers in charge of fresh research and development who need access to data from earlier projects that are buried deep within their corporate data sources can do it with the help of the Amazon Kendra. Due to faster and more accurate searches, they spend less time looking and more time creating.
  • Regulation and compliance concerns are reduced: Use machine learning to quickly find and Analyse regulatory requirements posted across hundreds of different websites, made possible by Amazon Kendra, to enhance policy enforcement and compliance operations.
  • Enhances interactions with customers: Whether through Q&A chatbots, agent-assist, or online consumer searches, the Amazon Kendra provides more accurate and intuitive answers to your consumers’ questions.
  • Raises personnel productivity: By integrating and indexing content from various, dispersed, and multi-structured information silos throughout the organization, businesses can create and maintain a single dynamic knowledge library for all employees. Using this one approach, users can quickly search and acquire the most pertinent information from any knowledge source, enabling them to make better decisions.

Features of Amazon Kendra

  • Offers sophisticated and intelligent search: Using unstructured data, Amazon Kendra employs machine learning to deliver more insightful answers. Whether you search for general terms (like “health benefits”) or pose natural language questions (like “How long is maternity leave?”).
  • Offers gradual learning: Based on end-user input and search trends, Amazon Kendra employs machine learning to improve search results continuously. For instance, individuals who search for “How can I adjust my health benefits?” will find a lot of results. There will be competition among several HR benefit papers for first place. In order to select the most pertinent document for this topic, Amazon Kendra will learn from user interactions and input to push favorite papers to the front of the list. Without requiring any prior knowledge of machine learning, Amazon Kendra uses incremental learning techniques.
  • Enhances precision and fine-tuning: Based on specific business goals, the Amazon Kendra enables fine-tuning of search results and prioritizes specific solutions and documents in the results. For instance, relevance adjustment enables users to enhance results by utilizing more reliable authors, data sources, or document freshness.
  • Offer Connectors: Connectors are easy to use; all you need to do is select a connectivity type and add data sources to your Amazon Kendra index. Connectors can be configured to routinely sync users’ indexes with their data sources, ensuring that they are always browsing the most recent content. Amazon Simple Storage Service (S3), Microsoft SharePoint, Salesforce, ServiceNow, Google Drive, Confluence, and other data sources are all natively connected by Amazon Kendra. In the absence of native connectors, Amazon Kendra has a number of partner-supported connectors in addition to a custom data source connector.
  • Domain optimization is offered: Amazon Kendra employs deep learning models to Analyse natural language queries and document content and structures for a wide range of internal use cases, including HR, operations, support, and R&D. Among the industries where Amazon Kendra thrives include IT, financial services, insurance, pharmaceuticals, industrial manufacturing, oil and gas, legal, media and entertainment, travel and hospitality, health, news, telecommunications, mining, food and beverage, and automotive. As an illustration, if a user searching for HR information types in “deadline for submitting HSA form,” Amazon Kendra will search for “deadline for filing health savings account form” to provide more information.
  • It provides Experience Builder: Amazon Kendra provides Experience Builder which provides an easy-to-use visual process for swiftly creating, customizing, and launching users’ Amazon Kendra-powered cloud search application. 

Integration of Amazon Kendra with Other Amazon Services

  • Amazon S3: A scalable object storage service, Amazon S3 (Simple Storage Service) allows for the storage and retrieval of any volume of data. For indexing and searching the contents of your S3 buckets, Amazon Kendra can be linked with Amazon S3.
  • Amazon RDS: A managed database service called Amazon RDS (Relational Database Service) makes it simpler to set up, run, and scale a relational database. You may use Amazon Kendra and Amazon RDS together to search the data in your databases.
  • Amazon WorkDocs: A completely managed, secure content creation, storage, and collaboration service is Amazon WorkDocs. To search within your papers, Amazon Kendra can be combined with Amazon WorkDocs.
  • Amazon Chime: You can connect with people, chat online, and make business calls both inside and outside of your company using Amazon Chime. To find meeting notes, recordings, and other Chime-related content, Amazon Kendra can be connected with Chime.
  • Amazon CloudWatch: For your AWS resources and applications, Amazon CloudWatch acts as a monitoring and observability service, providing metrics, logs, and alarms. To search for log data and other CloudWatch-related materials, Amazon Kendra can be linked with CloudWatch.

Get API Token For Amazon Kendra

To use the Amazon Kendra API, you will need to obtain an API token from the AWS Management Console. Here are the general steps:

  1. Sign in to the AWS Management Console.
  2. Navigate to the Amazon Kendra service page.
  3. Create an Amazon Kendra index and configure it with your data sources.
  4. Generate an AWS Identity and Access Management (IAM) user with access to the index.
  5. Obtain an access key and secret key for the IAM user.
  6. Use the access key and secret key to authenticate API requests using the AWS SDK or a REST API.

Pricing and Scalability of Amazon Kendra


  • Pricing for Amazon Kendra is determined by the volume of data indexed and the number of queries performed.
  • There are no minimum or up-front fees.
  • Pricing is prorated by the number of seconds used, and you only pay for what you use.
  • Based on the volume of searches and the amount of data indexed, there are various pricing tiers available.


  • With its highly scalable design, Amazon Kendra can manage millions of queries per day.
  • According to the number of searches and the amount of data indexed, it automatically scales up or down.
  • Also, you can adjust the instance type and node count to best suit your unique use case.
  • For users all across the world, Amazon Kendra can be set up internationally across several locations to deliver low-latency search results.

Limitations and Challenges


  • For Amazon Kendra to produce accurate search results, structured data is necessary.
  • It’s possible that unstructured data can’t be searched for or that it needs more preprocessing.
  • There are few choices for customization, and several sophisticated capabilities, such as custom query ranking, are not offered.
  • Only data sources that support SSL certificates and are reachable via HTTPS can be searched by Kendra.


  • For enterprises with large and complicated data sets, setting up and using Amazon Kendra can be difficult.
  • Amazon Kendra’s machine learning models need a lot of high-quality data and knowledge to be trained.
  • The caliber and applicability of the data being indexed have a significant impact on the accuracy and performance of Amazon Kendra.
  • It could need more work and knowledge to integrate Amazon Kendra with different programs and systems.

Future Outlook

Amazon’s continued investment in artificial intelligence and machine learning technology bodes well for the future of Amazon Kendra. Kendra’s accuracy, functionality, and customizability are all expected to continue to be enhanced, along with its connectivity with other Amazon services and third-party software. As they provide a more effective and efficient way to manage and search huge volumes of data, we can anticipate seeing greater demand for Kendra and other intelligent search technologies as more businesses adopt cloud-based solutions.

Conclusion and Future Outlook 

In conclusion, Amazon Kendra is an effective search tool that uses machine learning to deliver precise and pertinent search results for a range of use cases. Organizations may increase productivity, cut down on search time, and improve user experience all around by using Kendra, which indexes structured data from a variety of sources. Despite its drawbacks and difficulties, Kendra offers a versatile and scalable search solution that can be tailored to match the unique requirements of your organization.

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