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Ordnance Survey

OS Downloads API

Automated bulk download of OS OpenData and OS Premium datasets. The OpenData half of this API answers anonymously with no key - 26 open products including OS Open UPRN, OS Open TOID, Code-Point Open, OS Open Names, and Boundary-Line, each with direct zip download URLs.

Documentation Provider Profile APIs.io OpenAPI GitHub

OS Downloads API is one of 12 APIs that Ordnance Survey publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Downloads, Open Data, Bulk Data, and Addressing. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 9 operations across 9 paths, organized into 2 resource areas, and defines 9 schemas. It is described by OpenAPI 3.0.0, at version 1.0.0.

Requests are made against a single base URL, https://api.os.uk/downloads/v1/.

9 operations 9 paths 9 schemas 9 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.0
API Version
1.0.0
Base URL
https://api.os.uk/downloads/v1
Authentication
OAuth 2.0, API Key, API Key
Resource Areas
2

Authentication & Security 3

OS Downloads API declares 3 security schemes for authenticating requests. It supports OAuth 2.0 (OAuth2) using the clientCredentials flow. An API key is passed in the query as key (APIKeyQuery). An API key is passed in the header as key (APIKeyHeader).

Paths & Operations 9

Across 9 paths, the API surfaces 9 operations — 9 GET. They span 2 resource areas: OpenData, Data Packages. Each is listed below with its method, path, parameters, and response codes.

OpenData 4

Operations providing access to OpenData products.

GET
/products
Returns a list of the OpenData products that are available to download.
1 param → 200
GET
/products/{productId}
Returns details about a specific OpenData product.
1 param → 200404
GET
/products/{productId}/downloads
Returns a list of downloads for a specific OpenData product, or redirects to the actual download if requested.
6 params → 200307404
GET
/products/{productId}/images/{index}
Returns a HTTP redirect, pointing to thumbnail images for the specified OpenData product.
3 params → 200307404
Data Packages 5

Operations providing access to data packages. To access data packages you must supply a valid API key or OAuth 2 access token.

GET
/dataPackages
List the data packages that are available to you.
→ 200401
GET
/dataPackages/{dataPackageId}
Get a specific data package.
1 param → 200401404
GET
/dataPackages/{dataPackageId}/versions
Get the list of versions for a specific data package.
1 param → 200401404
GET
/dataPackages/{dataPackageId}/versions/{versionId}
Get a specific data package version, including details of the files that are available to download.
2 params → 200401404
GET
/dataPackages/{dataPackageId}/versions/{versionId}/downloads
Get a specific file from a data package version.
3 params → 307401404

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are Product (17 properties), DataPackageVersionSummary (8 properties), DataPackage (7 properties), ThirdPartyInfo (4 properties). Each schema is shown below with its type and property counts.

ThirdPartyInfo
object
Information about the data provider for third-party products.
4 properties 4 required
Product
object
Information about a product made available through this API.
17 properties 5 required
Format
object
Information about the format that a download is available in.
2 properties 1 required
Download
object
Information about a specific download file that is made available through this API.
4 properties 2 required
ProductDownload
Information about a specific OpenData file that is made available through this API.
Area
string
This describes the geographical area that a download covers. GB is all of Great Britain, while codes like 'HP' cover National Grid Reference squares.
DataPackage
object
A data package provides access to OS products that are not OpenData. If you have access to to products that are available as data packages then you can create…
7 properties 7 required
DataPackageVersionSummary
object
Summary information about a data package version.
8 properties 7 required
DataPackageVersion
Detailed information about a data package version, including a list of the files available to download.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

ordnance-survey-downloads-openapi.yaml Raw ↑

Other APIs Ordnance Survey publishes across the network.

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OS Places API
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OS Names API
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OS Linked Identifiers API
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OS Match & Cleanse API (withdrawn)
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OS Features API
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OS Maps API
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OS Vector Tile API
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OS OAuth 2 API
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#Downloads#Open Data#Bulk Data#Addressing
← Back to O APIs
API Details
ID
ordnance-survey:os-downloads-api
Base URL
https://api.os.uk/downloads/v1
Docs
https://docs.os.uk/os-apis/accessing-os-apis/os-downloads-api
Provider
Ordnance Survey
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