Reverse United Kingdom Developer Tools
To get started you're going to require an API key to use our API, and some knowledge of a programming knowledge. If you haven't already got an API you can make a request below for one. Requests normally take a few hours to process on a business day.Request an API key
Please login using Facebook to request an API key.
Please briefly explain what you intend to use the API for
We do not allow our API to be used to mine our entire database, and we require all usage to comply with our acceptable use and privacy policies. We have two restrictions in place to stop abuse of our service, there is a limit on searches per day based on which API you would like to use and what features you require.
Current Limits (per 24 hours)
Caller ID Extended Lookup: 20
Caller ID Simple Lookup: 40
Spam Lookup: 50
Geo Lookup: 50
API DocumentationCaller ID API Spam API Geo API v2 Name Normalizer API Caller ID Validate API Geo API (deprecated)
Please contact firstname.lastname@example.org if you are having trouble implementing our API