| Time | Status | User Agent |  |
| :-- | :-- | :-- | :-- |
| Make a request to see history. |

#### URL Expired

The URL for this request expired after 30 days.

> 💡
>
> ### **Compute Unit Value**: `50` (fixed)   [Skip link to compute unit value](https://docs.blockdaemon.com/reference/getfeeestimate#compute-unit-value-50-fixed)

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> 👍
>
> ### START HERE!   [Skip link to START HERE!](https://docs.blockdaemon.com/reference/getfeeestimate#start-here)
>
> Click **Try It!** to test the endpoint with the default values or customize your request by following these steps:
>
> 1. Enter your API key in the **Header: token** text box (top right).
> 
>    - You can **[get a free API key here](https://docs.blockdaemon.com/docs/quick-start-blockdaemon-api-suite)** .
> 2. Enter the parameters available below.
> 3. Click **Try It!**.

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For an in-depth tutorial, take a look at this video to learn how to estimate Ethereum Gas Fees with Blockdaemon's REST API.

### Supported Protocols & Networks

| Protocol | Network | Path Parameter |
| --- | --- | --- |
| Avalanche | Mainnet-c | `avalanche/mainnet-c` |
| Testnet-c | `avalanche/testnet-c` |
| Bitcoin | Mainnet | `bitcoin/mainnet` |
| Testnet | `bitcoin/testnet` |
| Testnet4 | `bitcoin/testnet4` |
| Bitcoincash | Mainnet | `bitcoincash/mainnet` |
| Testnet | `bitcoincash/testnet` |
| BNB | Mainnet | `bnb/mainnet` |
| Testnet | `bnb/testnet` |
| Dogecoin | Mainnet | `dogecoin/mainnet` |
| Testnet | `dogecoin/testnet` |
| Ethereum | Mainnet | `ethereum/mainnet` |
| Sepolia | `ethereum/sepolia` |
| Hoodi | `ethereum/hoodi` |
| Litecoin | Mainnet | `litecoin/mainnet` |
| Testnet | `litecoin/testnet` |
| Polkadot | Mainnet | `polkadot/mainnet` |
| Westend | `polkadot/westend` |
| Polygon | Mainnet | `polygon/mainnet` |
| Amoy | `polygon/amoy` |
| Solana | Mainnet | `solana/mainnet` |
| Testnet | `solana/testnet` |
| Devnet | `solana/devnet` |
| Kaia | Mainnet | `kaia/mainnet` |
| Kairos (Testnet) | `kaia/kairos` |
| XRP | Mainnet | `xrp/mainnet` |
| Testnet | `xrp/testnet` |

protocol

string

required

Defaults to bitcoin

Protocol handle, one of: `avalanche`, `bitcoin`, `bitcoincash`, `dogecoin`, `ethereum`, `litecoin`, `polkadot`, `polygon`, `solana`, and `kaia`.

network

string

required

Defaults to mainnet

Which network to target. Available networks can be found in the list of supported protocols or with /{protocol}.

# ``200      Protocols Overview

# ``401      Invalid or expired token

# ``429      Rate limit exceeded

# ``500      An internal server error happened

# ``503      The resource you are trying to access is currently unavailable

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### Sample CURL Request

```
curl --request GET \
 
     --url https://svc.blockdaemon.com/universal/v1/bitcoin/mainnet/tx/estimate_fee \
 
     --header 'X-API-Key: ••••' \
 
     --header 'accept: application/json'
```

application/json

``200 - simple fee``200 - evm``401``429``500``503

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