RESTful API

A comprehensive RESTful API stack, offering FREE large datasets for your projects to consume. Built using Node.js, Express, MongoDB, and TypeScript, with OpenAPI support and scaffolding provided by Loopback 4.
This platform can be used for both commercial and personal purposes, with no limit, subject to our Fair Use Policy.
This web application is licensed under the AGPLv3 (GNU Affero General Public License, version 3). View our source code & terms on GitHub.

Free Datasets: 12M+ Records and Growing
Countries & Codes Currencies & Codes IBAN Formats By Country
IBAN Checksum Validator MCC Codes Nationalities
UK Post Codes/Geocodes UK Businesses World Bank Branches
Worldwide Sanctions List Full CRUD Test Endpoint  

David Copper, M.Sc.

Principal Developer


When students or experienced developers need to unit test their projects, it's always beneficial to work with a diverse range of data, varying in both structure and the number of records present. This is not always easy, as many 3 rd party APIs are paid services, or have severe time or functionality restrictions on the free versions. The owners may also harvest your email details etc. (we never sell your data, or use it for our own sales purposes - we are just a bunch of techies). If you are an educational institution, we can issue a bulk endpoint where there are no limits to the number of API keys issued, and we are not recording/requiring the PII detail of students. Simply email us on api@largedataset.io and we should be delighted to assist.

We have assembled a series of useful datasets, that we actively maintain and keep current. A few of these endpoints contain millions of potential items to perform GET commands, and a couple have complex business logic embedded, as well as a number of full CRUD (create, read, update and delete) examples. You may use these APIs in any way you see fit, but if you intend to use them in production environments, we should be grateful if you would consider supporting us with a modest donation on Open Collective, and please read our Terms of Use, as well as the Fair Use Policy.

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