Stake ETH via Fireblocks (App)

Blockdaemon is available as a validator provider in Fireblocks, allowing Fireblocks clients to stake ETH to Blockdaemon validators directly, without leaving the Fireblocks interface or connecting an external wallet.

Prerequisites

An active Fireblocks account with the Staking Marketplace feature enabled
A vault account holding ETH on Ethereum Mainnet
Sufficient ETH balance to cover your stake amount plus gas fees

Supported Validator Types

Both Ethereum validator credential types are supported:

Type	Credential	Behaviour
Auto-compounding	0x02 (EIP-7251)	Rewards compound automatically into the validator balance. Supports top-up (add to stake) and partial or full withdrawal. Accepts 32–2,048 ETH per validator.
Legacy	0x01	Rewards auto-sweep to your withdrawal address. One validator per 32 ETH.

Option A: Stake via the Fireblocks UI

Step 1. Open the Fireblocks Staking Marketplace

Log in to your Fireblocks account.
In the left-hand navigation, select Staking.
Select the Ethereum staking option to open the ETH staking page.

Step 2. Select Blockdaemon as Your Provider

Click Stake to begin a new staking position.
From the list of validator providers, select Blockdaemon.

Step 3. Choose Your Validator Type

Select your preferred validator credential type:

Compounding — auto-compounding (0x02), supports 32–2,048 ETH per validator, top-up, and partial/full withdrawal.
Legacy — standard 0x01 validator, 32 ETH per validator, rewards auto-sweep to withdrawal address.

Step 4. Configure and Submit Your Stake

Enter the amount of ETH you wish to stake and select the vault account to use.
Confirm the fee recipient address and withdrawal address.
- The withdrawal address cannot be changed after the validator is launched.
Review the full staking summary and click Stake.
Approve the transaction in the Fireblocks mobile app using your PIN and biometric authentication.

Once confirmed on-chain, your validators will appear in a deposited state. You can track their status in the Ethereum Dashboard.

Managing Your Stake (UI)

Once your position is active, you can manage it directly from the Fireblocks UI:

Action	Supported
Add to stake (top-up)	✅ Auto-compounding (0x02) validators only
Partial withdrawal	✅ Auto-compounding (0x02) validators only
Full withdrawal (exit)	✅ Both validator types

Option B: Stake via the Fireblocks API

Blockdaemon is listed as a supported staking provider in the Fireblocks Staking API. You can specify Blockdaemon as your provider programmatically using the POST /staking/chains/{chainDescriptor}/stake endpoint.

Key Parameters

Parameter	Value / Notes
`chainDescriptor`	`ETH`
`providerId`	`blockdaemon`
`stakeAmount`	Amount in ETH
`vaultAccountId`	Your Fireblocks vault account ID
`txNote` (optional)	A note for the transaction

Behaviour by Validator Type

Auto-compounding validator (0x02 / EIP-7251): If you provide the id of an existing compounding validator position, the API adds to that position (top-up). Otherwise, a new position is created.
Legacy validator (0x01): A new position is always created regardless of existing delegations.

Example Request

POST /staking/chains/ETH/stake

{
  "vaultAccountId": "0",
  "providerId": "blockdaemon",
  "stakeAmount": "32",
  "validatorType": "COMPOUNDING"
}