> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yativo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Gas Fee

> Estimate the gas fee for a transaction on a given blockchain network

<ParamField header="Authorization" type="string" required>
  Bearer token: `Bearer YOUR_ACCESS_TOKEN`
</ParamField>

<ParamField body="chain_type" type="string" required>
  The blockchain network to estimate gas for. One of: `ethereum`, `solana`, `bitcoin`, `polygon`, `bsc`, `base`, `arbitrum`, `optimism`, `xdc`.
</ParamField>

<ParamField body="priority" type="string">
  Transaction priority affecting confirmation speed and fee. One of: `slow`, `medium`, `fast`. Defaults to `medium`.
</ParamField>

<ParamField body="amount_usd" type="number">
  Optional transaction amount in USD, used to calculate gas as a percentage of the transfer.
</ParamField>

<ParamField body="asset_id" type="string">
  Optional asset ID to get a fee estimate specific to that asset's token type.
</ParamField>

<RequestExample>
  ```bash theme={null}
  curl -X POST 'https://crypto-api.yativo.com/api/v1/transactions/get-gas-price' \
    -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
    -H 'Content-Type: application/json' \
    -d '{
      "chainType": "ETH",
      "priority": "low"
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
    "success": true,
    "data": {
      "estimatedFee": 0.00063,
      "gasFee": 0.00063,
      "platformFees": 0,
      "priority": "low",
      "chainType": "ETH",
      "breakdown": {
        "gas_cost_usd": "0.00063000",
        "platform_fees_usd": "0.00000000",
        "total_cost_usd": "0.00063000",
        "platform_fee_details": []
      }
    }
  }
  ```
</ResponseExample>