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Our Core API lets your applications use true randomness from RANDOM.ORG's trusted technology.
The Basic API gives you random values of many types and is useful for applications that require high-quality randomness, such as games and simulations.
The Signed API has all the functions of the Basic API and also lets you prove that your random values really came from RANDOM.ORG (authenticity) and that your application has not changed them (integrity). This is useful for many applications, such as a finance, auditing, games and lotteries.
RANDOM.ORG's software is independently certified by Gaming Labs International. For full transparency, we also run statistical tests on all our numbers and we publish the statistics online.