API - True Knowledge

True Knowledge Platform

You can create applications on the True Knowledge platform by using our API. The API will enable your applications to use True Knowledge to find useful information on any subject.

We have two main API services: the direct answer service and the True Knowledge query service.

Get Started!

You can get started developing True Knowledge applications in three easy steps...

Sign-up for a free API account - this will allow your applications to communicate with True Knowledge.
Download the API manual - this will explain how to use our API.
Download our PHP library - this contains examples and utility classes for using the API.

The Direct Answer Service

The Direct Answer service gives access to our natural language question answering technology through our api.

Experiment with the Direct Answer Service:

e.g. What's the time in Chicago?
Who was president of the US when Barack Obama was a teenager?
(more examples)

Query URL:

XML Response:

The Query Service

The Query Service allows users to query True Knowledge's knowledge base through an easy to use query language.

Experiment with the Query Service:

e.g. query result
["+44 1223 323382"] [can denote] number
result [is the geographical area for the telephone number] number

query place, place_urs
["chicago"] [can denote] place /r
place [is an instance of] [geographical area]
place [uniquely translates as] place_urs

Query URL:

XML Response:

API enquiries: