Ordnance Survey Plans
Access to the Ordnance Survey APIs is gated by OS Data Hub plan, not by scope. The plan decides WHICH APIs and WHICH data products an API project can use; a key on the wrong plan returns 403 rather than 401. Plan NAMES are documented across the OS API documentation, but plan PRICING and free allowances are not published in the developer documentation - the OS Data Hub plans page is a JavaScript application that serves no server-rendered pricing, so no price is recorded here rather than guessed.
Ordnance Survey Plans is the machine-readable pricing-plan profile for Ordnance Survey on the APIs.io network, conforming to the API Commons Plans specification.
It defines 3 plans, covering free, commercial, and entitlement tiers, with named plans including OS OpenData Plan, Premium Plan, Public Sector Plan.
Tagged areas include Geospatial, Open Data, Government, and Addressing.
Plans
Free access to the OS OpenData products. Shown as "OpenData usage" in the OS Data Hub API Dashboard. The OpenData half of the OS Downloads API needs no API key at all - 26 products including OS Open UPRN, OS Open TOID, OS Open USRN, Code-Point Open, OS Open Names, OS Open Linked Identifiers and Boundary-Line.
Commercial plan giving access to the premium OS APIs and data products. Named in the OS documentation as a supported plan for OS NGD API - Features and OS NGD API - Tiles, and required for OS Places API, OS Names API, OS Features API, OS Maps API and OS Vector Tile API.
For Public Sector Geospatial Agreement (PSGA) members. PSGA usage appears as "Public Sector data" in the OS Data Hub API Dashboard rather than as chargeable Premium usage.