Install

Rust

cargo add alea-sdk

Latest: 0.1.0 on crates.io. Crate name is alea-sdk, the importable module is alea_sdk. It re-exports the types your Anchor program needs for CPI, plus the two helpers config_pda() and is_round_recent().

BPF rustc lag pin

Solana’s cargo-build-sbf embeds a rustc that lags the public release by several minor versions. The transitive dependency constant_time_eq bumps its MSRV faster than that. If your cargo build-sbf fails with requires rustc 1.95.0, pin the dependency in your consumer Cargo.toml:

[dependencies]
constant_time_eq = "=0.4.2"

A future Solana toolchain release will move the floor up. Until then every BPF consumer of alea-sdk (and many other crates) needs this pin. See Common Pitfalls for the full story.

TypeScript

npm install @alea-drand/sdk

Latest: 0.2.0 on npmjs.com. Peer dependencies you must already have:

npm install @solana/web3.js@^1.95 @coral-xyz/anchor@^0.30.1

Why pin web3.js to 1.95+ rather than 2.x: Alea was built against the current Anchor toolchain, which is itself web3.js 1.x. Anchor 2 / web3.js 2 will land later and the SDK will follow. The specific incompatibility between Anchor 0.30.1 and web3.js 1.98+ is documented in Common Pitfalls — the SDK works around it internally.

Verify the install

Rust:

use alea_sdk::PROGRAM_ID;
println!("{}", PROGRAM_ID);
// ALEAydzHd4cN2EWcdHKp4hehAE4B88b16gqVtVqsck2U

TypeScript:

import { DEVNET_PROGRAM_ID } from "@alea-drand/sdk";
console.log(DEVNET_PROGRAM_ID.toBase58());
// ALEAydzHd4cN2EWcdHKp4hehAE4B88b16gqVtVqsck2U

If both print that base58 address, the install is good. Next: CPI Integration Guide walks through a complete program.