Transparency data

Open Contracting

This page contains open contracting data from the Crown Commercial Service.

Documents

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Details

Open Contracting Data Standard (OCDS)

The UK is the first G7 country to commit to the Open Contracting Data Standard (OCDS) for contracts administered by a central purchasing authority, the Crown Commercial Service (CCS). This means that the whole process of awarding public sector contracts will be visible to the public for the first time.

Open contracting means all data and documents are disclosed at all stages of the contracting process. This supports organisations to increase contracting transparency, and allows deeper analysis of contracting data by a wide range of users.

Working with the Open Contracting Partnership we have published our review of the UK Showcase and Learning project in the form of a Measurement, Evaluation and Learning Framework. This sets out the impact of our implementation from a baseline date of May 2016 to November 2017 (unless otherwise specified). An earlier digest of our progress is available .

OCDS outputs are available for both Find a Tender and Contracts Finder.

Find a Tender

You can download notices in OCDS JSON format using our application programming interface (API). Notice fields are mapped to OCDS version 1.1.5 with extensions as defined by the .

OCDS release package API

  • https://www.find-tender.service.gov.uk/api/1.0/ocdsReleasePackages
  • Filter by publication date, procurement stage, notice or procurement process (ocid)

Identifiers

  • Release IDs are unique within a procurement process (ocid)
  • Party (buyer or supplier) IDs are unique within a release

XML downloads

The same notice data is also available to download from the data.gov.uk website or using their API. Daily Zip files contain an XML file for each notice published on that day.

  • For information on the data.gov.uk API and the XML schemas used, see the

Contracts Finder

You can download notices in OCDS JSON format using our API.

We have published a that shows how each field in each notice type maps to the corresponding field in OCDS.

Our Contracts Finder output is based v1.0 of the OCDS standard, with some enhancements from on v1.1. We plan to update to be fully compliant with v1.1 in the future.

OCDS search API

  • https://www.contractsfinder.service.gov.uk/Published/Notices/OCDS/Search
  • Filter by publication date and procurement stage

OCDS record API

  • https://www.contractsfinder.service.gov.uk/Published/Notice/records/{{OCID}}.json
  • Get information on a procurement process

OCDS release API

  • https://www.contractsfinder.service.gov.uk/Published/Notice/releases/{{NoticeId}}.json
  • Get information on a Contracts Finder notice

OCDS CSV API

  • https://www.contractsfinder.service.gov.uk/harvester/Notices/Data/CSV/{year}/{month}/{day}
  • Get notices published on a particular date as a CSV file

Buyer identifiers

Contracts Finder OCDS outputs a unique identifier for each registered buyer organisation on Contracts Finder. . Unique identifiers are output by the registration service. The identifiers may resemble website addresses, but they are not. Buying organisations can post to Contracts Finder without registering directly through a number of e-procurement systems. In these cases, the ID of the e-procurement system is output, rather than an identifier for each individual buying organisation on that system.

Users can be assured that they will receive the most up to date list at the time of download. Each organisation will be flagged as 鈥淩egistered鈥� or 鈥淒e-registered鈥� depending on whether they are still active on the system.

Additionally, is curating approved registers to provide accurate and consistent data for use across government. Where we have found a match for a Contracts Finder Buyer in these registers, we are using the data to provide a unique identity for them in Contracts Finder. These registers are the and the .

Supplier identifiers

Awarded suppliers鈥� Companies House or registered charity numbers are included in Contracts Finder鈥檚 OCDS outputs where these have been provided by the buyer.

Contracting 5

The governments of Colombia, France, Mexico, Ukraine and the UK officially launched the 鈥楥ontracting 5鈥� (C5) initiative at the Global Summit in December 2016. Argentina joined on the first anniversary.

The C5 are committed to working together to lead on using open data to improve public procurement and achieve better value for money; a fairer and more competitive business environment; better goods and services and; reduced corruption in public contracting. The UK is an active contributor to the C5, leading work in 2017 on establishing a common baseline for the C5 OCDS implementation projects.

Find out more about the 鈥樷�.

Updates to this page

Published 1 December 2016
Last updated 1 January 2021 show all updates
  1. The page has been updated with additional information about OCDS outputs available for the new Find a Tender Service and information about Contracts Finder.

  2. The document 'CCS Contracts Finder Open Contracting Data Standard publication guide' has been updated.

  3. Replacing version 1 of CCS Contracts Finder Open Contracting Data Standard publication guide with version 2

  4. Text amended with latest news

  5. New input/output stats added

  6. Text amends made and new document updated

  7. Updated links

  8. New text / document added

  9. Text added

  10. Updated open contracting data standard release API URL

  11. First published.

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