The Distributed Randomness Beacon

Unpredictable, publicly verifiable, bias-resistant, decentralized random numbers as a service.

Join us at Threshold Summit in Bangkok, Thailand! Tuesday, November 12th, Noon - 6pm

HTTP API

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

📖 API Docs

Client Libraries

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

📚 Go & JS

Who relies on drand?

The League of Entropy is a voluntary consortium providing verifiable, decentralized randomness as a public good for anyone who needs secure, bias-resistant, verifiable randomness. Join us!

🏫 Learn more

🛠️ Get involved

💬 Get in touch

Enterprise-grade random number generators must be unpredictable, publicly verifiable, bias-resistant, decentralized, and always available. drand meets or exceeds such criteria while keeping things simple.

Learn more about how drand randomness works →

The drand project is maintained by voluntary 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,

Learn more about how to get involved with the drand project →

For questions, comments, or to start a collaboration, please reach the extended team via: leagueofentropy [at] googlegroups.com or join the drand slack workspace to start a discussion →

📊 League of Entropy Dashboards