drand logo

Distributed randomness beacon.

Verifiable, unpredictable and unbiased random numbers as a service.

HTTP API

Get your randomness or chain information directly by sending HTTP `GET` requests to the drand JSON HTTP API.

Client libraries

Use drand client libraries to easily consume randomness from your applications, over HTTP, gRPC or libp2p PubSub.

League of Entropy logo

The League of Entropy is a collaborative project to provide a verifiable, decentralized randomness beacon for anyone that may need a public source of randomness.

Members

Latest Randomness

Here's the latest random value that was generated, round #0:

The next randomness is expected in 0 seconds.

Learn how to retrieve randomness from the League of Entropy drand nodes:
Developer Docs

# Learn more

Billions of devices around the world use random numbers to keep computers secure and keep the internet open. High-grade random number generators need to be unpredictable, publicly verifiable, bias-resistant, decentralized, and always available. Drand strives to meet all these criteria while keeping things simple and accessible. Find out more about how drand produces random numbers and how the team are making the project secure →

# Get involved

The drand project is maintained by contributors from many different fields, companies, and research labs. If you'd like to contribute code, submit issues, improve documentation, or get the word out, find out how to get involved with the project →