When launching new Ethereum validators, using the batched transactions with the Staking API saves time and gas compared to the official deposit contract.

### Note

You can save over 50% on gas usage when launching 250 validators with Blockdaemon.

## Recommended Gas Limits

The [Post Stake Intent](https://docs.blockdaemon.com/reference/postethereumstakeintent) endpoint allows you to stake to 250 validators using our audited [batch deposit contract](https://gitlab.com/Blockdaemon/open-source/eth2-batch-deposit-contract).

We recommend you use the following gas limits when staking ETH with the Staking API:

| # of validators to launch via Blockdaemon API | Recommended setting for gas limit (in GWEI) |
| --- | --- |
| 1 | 100,000 |
| 2 | 200,000 |
| 5 | 300,000 |
| 10 | 400,000 |
| 25 | 900,000 |
| 50 | 1,700,000 |
| 100 | 3,300,000 |
| 150 | 4,800,000 |
| 200 | 6,300,000 |
| 250 | 7,900,000 |

- Recommended gas limit contains buffer and is rounded up for convenience; you only pay for actual gas used.
- gas _used_ varies slightly due to different parameters at execution time, and the USD price to launch validators depends on the gas _price_ and ETH/USD value.