Ordnance Survey
Ordnance Survey is Great Britain's national mapping agency, a government-owned company that maintains the addressing and mapping layer the UK property market runs on - the Unique Property Reference Number (UPRN), the TOID, AddressBase, and the OS National Geographic Database. The UK has no MLS; residential listings sit behind the Rightmove/Zoopla duopoly and agency CRM software, so the open layer in this market is public-sector rather than private, and OS is one half of it alongside HM Land Registry. Its API posture is unusually honest for this sector - the OS Data Hub is a self-serve developer portal with real machine-readable contracts, including OGC-conformant OpenAPI 3.0 documents served live and anonymously at api.os.uk for OS NGD API - Features and Tiles, plus published OpenAPI for the OS Downloads and OS Net APIs. The split that matters is licensing, not reachability: OS OpenData products (OS Open UPRN, OS Open TOID, Code-Point Open, OS Open Names, Boundary-Line, OS Open Linked Identifiers) are free and downloadable with no API key at all through the OS Downloads API, while the premium addressing and mapping products behind OS Places API, OS Features API, and the NGD collections require a paid Premium plan or Public Sector Geospatial Agreement (PSGA) membership. RESO plays no part here - the Real Estate Standards Organization standards are a US MLS construct and appear nowhere in the OS estate. Home market is the United Kingdom.
Ordnance Survey publishes 23 APIs on the APIs.io network, including Bounding box API, Collections API, Data Collections API, and 20 more. Tagged areas include Real-Estate, United Kingdom, Land Registry, Geospatial, and Addressing.
Ordnance Survey’s developer surface includes authentication, documentation, getting-started guide, SDKs, sandbox, changelog, API reference, and 59 more developer resources.
Kin Score
APIs 25
Individual APIs this provider publishes, each with its own machine-readable definition.
OS Match & Cleanse API (withdrawn)
Matched and cleansed supplied address strings against OS authoritative addressing data, returning a matched AddressBase record and confidence score. WITHDRAWN: end of life 31 Ma...
OS OAuth 2 API
OAuth 2.0 client credentials token service issuing time-limited access tokens for OS Data Hub APIs, so project API keys need not be embedded in browser code. The token URL is ht...
Ordnance Survey Bounding box API
Find all addresses inside a bounding box.
Ordnance Survey Collections API
Retrieve information about collections
Ordnance Survey Data Collections API
The Data Collections API from Ordnance Survey — 2 operation(s) for data collections.
Ordnance Survey Data Packages API
Operations providing access to data packages. To access data packages you must supply a valid API key or OAuth 2 access token.
Ordnance Survey Features API
Retrieve features
Ordnance Survey Find API
A free string text search of OS Names, intended to be an ambiguous/fuzzy search.
Ordnance Survey Get Capabilities API
Returns a metadata document describing the WFS service provided by the server as well as valid WFS operations and parameters.
Ordnance Survey Landing Page API
Ordnance Survey NGD API – Features
Ordnance Survey Nearest API
Find the features closest to a given point.
Ordnance Survey Open Data API
Operations providing access to OpenData products.
Ordnance Survey OS OpenData Users API
Operations available to customers using the OpenData plan
Ordnance Survey Polygon API
Find all addresses in a polygon or multi-polygon object.
Ordnance Survey Postcode API
A search based on a property’s postcode
Ordnance Survey Radius API
Find all addresses that intersect a given circle.
Ordnance Survey Rinex API
The Rinex API from Ordnance Survey — 5 operation(s) for rinex.
Ordnance Survey Service Metadata API
Service Metadata for OS Vector Tiles API
Ordnance Survey Stations API
The Stations API from Ordnance Survey — 5 operation(s) for stations.
Ordnance Survey Styles API
The Styles API from Ordnance Survey — 5 operation(s) for styles.
Ordnance Survey Tile Request API
Access and download data for a specific tile
Ordnance Survey Tile Sets API
The Tile Sets API from Ordnance Survey — 2 operation(s) for tile sets.
Ordnance Survey Tiling Schemes API
The Tiling Schemes API from Ordnance Survey — 2 operation(s) for tiling schemes.
Ordnance Survey UPRN API
A search that takes a UPRN as the search parameter.
Ordnance Survey Vector Tiles API
The Vector Tiles API from Ordnance Survey — 2 operation(s) for vector tiles.
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Postman Collections 10
Ready-to-run Postman collections for exercising this provider's APIs.
Ordnance Survey Download API
POSTMANOS Features API
POSTMANOS Linked Identifiers API
POSTMANOS Maps API
POSTMANOS Names API
POSTMANOS NGD API – Features
POSTMANOS NGD API - Tiles
POSTMANOS Net API
POSTMANOS Places API
POSTMANOS Vector Tiles API
POSTMANScroll for all 10
Open Collections 8
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
OS Features API
OPEN COLLECTIONOS Linked Identifiers API
OPEN COLLECTIONOS Maps API
OPEN COLLECTIONOS Names API
OPEN COLLECTIONOS NGD API – Features
OPEN COLLECTIONOS NGD API - Tiles
OPEN COLLECTIONOS Places API
OPEN COLLECTIONOS Vector Tiles API
OPEN COLLECTIONScroll for all 8
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Ordnance Survey Rate Limits
RATE LIMITSSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 6
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 10
MCP servers, agent skills, and machine-readable catalogs
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Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 8
Status, limits, changes, and where to get help
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Commercial 6
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 14
Properties that don't map to a standard resource type
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Source (apis.yml)
Work with this as data
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