Category Archives: api

Crunching the numbers on Open XBRL Accounts Data

It’s been 4 months since we started importing UK company accounts data as XBRL (a worldwide standard format that allows company accounts to be easily readable by computers), thanks to the groundbreaking work by UK Companies House, who followed on from … Continue reading

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New API version released: corporate networks, accounts, and more

We’re proud to announce that version 0.3 of the OpenCorporates API is now live, with many, many new features, improvements (and even a few bug fixes). Along the way, we’ve also given it a visual refresh: The major improvements are: … Continue reading

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Guest Post: Data Sketching With the OpenCorporates API

Tony Hirst, a lecturer in the Department of Communication and Systems at The Open University, and author of the OUseful.info blog has been using the OpenCorporates API for some time. Here’s a review of some of his experiments. Looking back … Continue reading

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Announcing version 0.2 of the OpenCorporates API

We’re pleased to announce the new version of our API (version 0.2), with some significant enhancements and improvements. In particular, you can now  search the 39 million company directors and officers that OpenCorporates has (with more being added every day).  Here’s … Continue reading

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Towards a global lookup service for corporate ids

We’ve often stated that the goal of OpenCorporates is simple (but huge): to create an openly licensed database containing every corporate legal entity in the world, and provide open URI ids for them. We base this URI on the ID issued … Continue reading

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How to use the OpenCorporates API, Part 1: widgets

Just before Christmas, we introduced the new OpenCorporates API, which allows access to all the information in OpenCorporates, including allowing searching. We said then that we’d give some examples of how to use the API, and the first one is … Continue reading

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One year on: 10 times bigger, masses more data… and a new API

Was it just a year ago that we launched OpenCorporates, after just a couple months’ coding? When we opened up over 3 million companies and allowed searching across multiple jurisdictions (admittedly there were just three of them to start off … Continue reading

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