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OS Names API

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An online geographic directory of information about identifiable places, OS Names API is a place, road and postcode verification tool that you can plug into your website or app completely free.

OS Names API

Benefits and key features

If you'd like to offer place name, postcode and 'find the nearest' searches on your website via a web service, OS Names API is for you.

  • Quickly and efficiently query a database of 2.5 million accurate locations via a lightweight API.
  • Query the service in English, Welsh and Gaelic.
  • Receive responses from our servers in industry-standard XML and JSON formats.
  • Make up to 50,000 API server calls a month.

An OS OpenData service

OS Names API is FREE to view, download and use for commercial, educational and personal purposes.

An OS OpenData service

Comprehensive

Query over 870,000 named and numbered roads, nearly 44,000 settlements and over 1.6 million postcodes.

Comprehensive

Pure-play gazetteer API

OS Names API is a stand-alone web service that you can plug into your website or app alongside others.

Pure-play gazetteer API

OS Names API

Technical specification

Attribute What we offer
Feature types Populated place and transport network, postcode
Local types Populated place: city, town, suburban area, village, hamlet, other settlement. Transport network: named road; numbered road; section of named road; section of numbered road. Postcode.

More added – see list

Place name variations Yes, English plus Gaelic or Welsh as appropriate
Resources Find (fast lookup) and Nearest (returns nearest feature to named place)
Update frequency Quarterly – January, April, July and October
Coverage Great Britain

OS Names API

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