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OS Features API

OGC Web Feature Service (WFS 2.0.0) over OS MasterMap and premium feature data, with getCapabilities, describeFeatureType, and getFeature operations plus a product archive. XML/WFS rather than OpenAPI.

OS Features 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 WFS, OGC, Features, and Geospatial. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 2 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.0.1, at version v1.0.

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

2 operations 2 paths 4 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.1
API Version
v1.0
Base URL
https://api.os.uk/features/v1/wfs
Authentication
API Key
Resource Areas
1

Authentication & Security 1

OS Features API declares 1 security scheme for authenticating requests. An API key is passed in the query as key (api-key). By default, every request must be authenticated.

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

GetCapabilities 2

Returns a metadata document describing the WFS service provided by the server as well as valid WFS operations and parameters.

GET
/wfs
Access to features matching a given query
GetFeature 13 params → 200
GET
/wfs/archive/{year}
Access to features matching a given query for a particular year (as an annual snapshot - taking the last full release in the calendar year)
GetArchiveFeature 14 params → 200

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are Feature (3 properties), Coordinate (2 properties), Geometry (2 properties), FeatureCollection (2 properties). Each schema is shown below with its type and property counts.

FeatureCollection
object
2 properties
Feature
object
3 properties
Geometry
object
2 properties
Coordinate
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

ordnance-survey-features-wfs-openapi.json Raw ↑

Other APIs Ordnance Survey publishes across the network.

OS NGD API - Features
OS NGD API - Tiles
OS Downloads API
OS Net API
OS Places API
OS Names API
OS Linked Identifiers API
OS Match & Cleanse API (withdrawn)
OS Maps API
OS Vector Tile API
OS OAuth 2 API
Where this information came from

This is an independent, third-party profile of OS Features API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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