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 25 API contracts indexed on the APIs.io network, including Bounding box API, Collections API, Data Collections API, and 22 more. Tagged areas include Real Estate, United Kingdom, Land Registry, Geospatial, and Addressing.
The Ordnance Survey catalog on APIs.io includes 1 Spectral governance ruleset.
Ordnance Survey’s developer surface includes authentication, documentation, getting-started guide, SDKs, sandbox, changelog, API reference, and 59 more developer resources.
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Geospatial and Maps (OGC standards) | standard | 17.2 (thin) | - | 3 |
| UK G-Cloud Suppliers (UK public-sector cloud procurement) | standard | 17.2 (thin) | - | 3 |
| Overture Maps Foundation (members + data contributors) | standard | 17.2 (thin) | - | 3 |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 2
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
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 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 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 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.
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 Post Code API
A search based on a property’s postcode
Ordnance Survey Tilesets API
The Tilesets API from Ordnance Survey — 2 operation(s) for tilesets.
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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
Agent Skills 5
Packaged agent skills for driving this provider's APIs from an AI assistant.
Authenticate against the OS Data Hub APIs
AGENT SKILLDownload OS OpenData with no API key
AGENT SKILLOrdnance Survey API pricing
Prices published by Ordnance Survey, read 2026-10-28 from osdatahub.os.uk/plans. A free plan or tier is listed.
| Plan | Price |
|---|---|
| OS OpenData Plan | Freely available for anyone or a business. Includes: OS Net RINEX Data, OS OpenData APIs (free access), Premium data APIs (paid-for data), Development mo |
| Premium Plan | Start for free Includes: Up to £1,000 of free premium data every month; unlimited free Premium data for projects in developme |
| Public Sector Plan | Premium data APIs (free access) Includes: OS OpenData and Premium data for PSGA members, unlimited Premium data downloads |
| OS NGD API – Features (premium feature request, up to 100 features) | £0.19 Includes: Up to 5,263 equivalent free transactions per month |
| OS NGD API – Tiles / OS Vector Tile API premium map view (4 tiles) | £0.0331 Includes: Up to 30,211 equivalent free transactions per month |
| OS Maps API Leisure map 1:25 000/1:50 000 view (15 tiles) | £0.000525 Includes: Up to 1,904,762 equivalent free transactions per month |
| OS Places API premium feature request (up to 100 addresses) | £0.0282 Includes: No free transactions |
Plan details, limits and sources →
Rate limits
- Live-mode project: 600 transactions per minute
- Development-mode project: 50 transactions per minute
- OS Places API Partner trial: 50 transactions per minute
Billed by: premium feature request (up to 100 features) · FinOps profile →
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Ordnance Survey Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
FinOps 1
Cost, billing, and metering signals for API financial operations.
Ordnance Survey Finops
FINOPSSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Ordnance Survey API Rules
SPECTRALOpenAPI Overlays 10
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Ordnance Survey Maps Overlay
DERIVEDOrdnance Survey Names Overlay
DERIVEDOrdnance Survey Osnet Overlay
DERIVEDOrdnance Survey Places Overlay
DERIVEDScroll for all 10
Security 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)
Ordnance Survey API — frequently asked questions
Does Ordnance Survey have an API?
Yes. APIs.io lists 25 APIs from Ordnance Survey, including OS Match & Cleanse API (withdrawn), OS OAuth 2 API and Ordnance Survey Bounding box API, and 22 more.
Is there an OpenAPI specification for the Ordnance Survey API?
Yes. APIs.io indexes 23 OpenAPI specifications for Ordnance Survey, each linked for download from this page.
How do I authenticate with the Ordnance Survey API?
Ordnance Survey uses bearer-token authentication (apiKey/oauth2 · 3 schemes). The details are profiled on APIs.io as Ordnance Survey Authentication.
How much does the Ordnance Survey API cost?
Ordnance Survey publishes its prices; its OS OpenData Plan plan is Freely available for anyone or a business. as of 2026-10-28. APIs.io lists 7 pricing plans for Ordnance Survey, with each plan's price, limits and inclusions under Pricing on this page.
Is the Ordnance Survey API ready for AI agents?
Ordnance Survey has a Kin Score of 58.2 out of 100 (strong) and an Agent Readiness score of 30.4 (agent-ready), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.