About Kosh

Kosh Suite - An API Framework for Lexical Data

The Kosh Suite is an API-centric, open-source framework designed to efficiently manage and access lexical data.



The framework's backbone, kosh (opens in a new tab), is designed with the capability to provide API access to any XML-encoded lexical dataset, independently of the underlying data model.


In conjunction with the backend, the frontend, kosh_client (opens in a new tab), brings you a user-friendly interface, built using React. This web application simplifies the process of searching within the diverse and extensive datasets indexed by Kosh.

Why Kosh?

The name "Kosh" originates from the Hindi word for dictionary or lexicon, कोश (koś or kosh), which itself derives from Sanskrit कोश (kośa) with the same meaning.


  • Kosh processes lexical data in XML format.
  • Two APIs, GraphQL and REST, provide access to the data stored in Elasticsearch.
  • Kosh can be deployed using Docker or natively on Unix-like systems.

How to Implement Kosh

Kosh enables you to design APIs customized for your XML-encoded lexical resources.

Each component of Kosh, the backend and frontend, is independent and requires its own setup and deployment process.

Backend Deployment

For the deployment of Kosh's backend component, you are advised to follow the instructions detailed in our specific guide. Access the Backend Deployment Guide.

Frontend Deployment

For deploying the frontend component, we have also prepared a standalone guide. You can find comprehensive directions in our Frontend Deployment Guide.


Francisco Mondaca, Philip Schildkamp, Felix Rau and Luke Günther. 2023. “The Kosh Suite: A Framework for Searching and Retrieving Lexical Data Using APIs.” In Electronic Lexicography in the 21st Century. Proceedings of the eLex 2023 Conference, Brno, Czechia. Brno: Lexical Computing CZ, s.r.o., 236-247. PDF (opens in a new tab)

Francisco Mondaca, Philip Schildkamp, and Felix Rau. 2019. “Introducing Kosh, a Framework for Creating and Maintaining APIs for Lexical Data.” In Electronic Lexicography in the 21st Century. Proceedings of the eLex 2019 Conference, Sintra, Portugal. Brno: Lexical Computing CZ, s.r.o., 907–921. PDF (opens in a new tab)

Francisco Mondaca and Jan Bigalke. 2019. "Introducing an Open, Dynamic and Efficient Access for TEI-encoded Dictionaries on the Internet". Presentation of a Kosh-based workflow for editing dictionaries and publish them via APIs. TEI Conference Graz 2019. DOI (opens in a new tab)

Francisco Mondaca, Felix Rau, Claes Neuefeind, Börge Kiss, Daniel Kölligan, Uta Reinöhl, Patrick Sahle. 2019. "C-SALT APIs – Connecting and Exposing Heterogeneous Language Resources". Presentation at the Digital Humanities Conference 2019, Utrecht, The Netherlands.
DOI (opens in a new tab)