Getting Started - Developers

This section helps developers build applications that use drand as a source of randomness. For help running your own drand network, see theguides under For Operators on the main menu of the site.

The current public League of Entropy drand mainnet API endpoints are:

• https://api.drand.sh(HTTPS endpoint, also available over HTTP)
• https://api2.drand.sh(HTTPS endpoint, also available over HTTP)
• https://api3.drand.sh(HTTPS endpoint, also available over HTTP)
• https://drand.cloudflare.com(HTTPS endpoint)
• https://api.drand.secureweb3.com:6875(HTTPS endpoint)
• /dnsaddr/api.drand.sh(1st-level libp2p gossipsub relay endpoint)
• /dnsaddr/api2.drand.sh(1st-level libp2p gossipsub relay endpoint)
• /dnsaddr/api3.drand.sh(1st-level libp2p gossipsub relay endpoint)

There are three networks on mainnet:

• defaultwhich is running the chained scheme with public keys on G1
• quicknetwhich is running the unchained scheme with public keys on G2
• evmnetwhich is running the unchained scheme with public keys on G2, using the BN254 curve instead of the BLS12-381, meaning it is compatible with EVM pre-compiles.

defaultnetwork chain hash:8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce

quicknetnetwork chain hash:52db9ba70e0cc0f6eaf7803dd07447a1f5477735fd3f661792ba94600c84e971

evmnet network chain hash: 04f1e9062b8a81f848fded9c12306733282b2727ecced50032187751166ec8c3

Note that ** thefastnet network has been deprecated. **

In order to retrieve randomness from a drand network you shouldpreferentially use thedrand client libraries, which support the different mechanisms and perform verification for every value obtained.

Alternatively, you can interact directly with the endpoints. Make sure to manually verify every value:

• HTTP API reference
• PubSub-based randomness distribution
• gRPC API: not publicly accessible anymore.

Finally, for development purposes, we recommend also testing your code against our Testnet endpoints. Seeour dedicated documentation entry about testnet endpoints.