Staking

Evolution SDK provides complete staking operations — register stake credentials, delegate to pools and DReps, withdraw rewards, and deregister. All operations support both key-based and script-controlled stake credentials.

Staking Lifecycle

1. Register — Create a stake credential on-chain (requires a deposit)
2. Delegate — Assign your stake to a pool and/or DRep
3. Earn — Accumulate rewards each epoch
4. Withdraw — Claim accumulated rewards
5. Deregister — Remove credential and reclaim deposit (optional)

Quick Example

import { Credential, createClient } from "@evolution-sdk/evolution"

const client = createClient({
  network: "preprod",
  provider: { type: "blockfrost", baseUrl: "https://cardano-preprod.blockfrost.io/api/v0", projectId: process.env.BLOCKFROST_API_KEY! },
  wallet: { type: "seed", mnemonic: process.env.WALLET_MNEMONIC!, accountIndex: 0 }
})

declare const stakeCredential: Credential.Credential
declare const poolKeyHash: any

// Register and delegate in one transaction
const tx = await client
  .newTx()
  .registerStake({ stakeCredential })
  .delegateToPool({ stakeCredential, poolKeyHash })
  .build()

const signed = await tx.sign()
await signed.submit()

Conway Era Features

The Conway era introduced new delegation capabilities:

• Vote delegation — Delegate voting power to a DRep separately from stake
• Combined certificates — Register + delegate in a single certificate
• Script-controlled staking — Use Plutus scripts for stake operations

Next Steps