A UK postcode and address lookup service.

API

What your agent can do

  • Returns the complete list of addresses for a postcode.

    Via API.

Tasks depend on the interface and permissions.

Connection methods

Choose a route that fits your agent.

API connection
API path
https://api.ideal-postcodes.co.uk/v1/postcodes/SW1A2AA?api_key=ak_test

Authentication
Most requests require an **API key**. Authenticate by passing `api_key` in the query string:

Documentation & experience

  • 1 of 1 connection paths checked
  • Latest documentation check 9 Oct 2026
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