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

# eth_maxPriorityFeePerGas | Base

Base API method `eth_maxPriorityFeePerGas` queries the current maximum priority fee per gas. This method is particularly useful in periods of high network congestion to estimate the appropriate priority fee for a transaction.

<Check>
  **Get your own node endpoint today**

  [Start for free](https://console.chainstack.com/) and get your app to production levels immediately. No credit card required.

  You can sign up with your GitHub, X, Google, or Microsoft account.
</Check>

## Parameters

This method does not require any parameters.

## Response

* `result` — the current maximum priority fee per gas, returned as a hexadecimal string.

## Use case

The `eth_maxPriorityFeePerGas` method is essential for:

* Wallets and transaction builders that dynamically adjust transaction fees to ensure timely inclusion in a block.
* Users and services looking to estimate transaction costs more accurately during periods of network congestion.
* Developers and analysts monitoring Base network fee dynamics.


## OpenAPI

````yaml /openapi/base_node_api/eth_maxPriorityFeePerGas.json POST /2fc1de7f08c0465f6a28e3c355e0cb14
openapi: 3.0.0
info:
  title: eth_maxPriorityFeePerGas example
  version: 1.0.0
  description: >-
    This is an API example for eth_maxPriorityFeePerGas, a method to query the
    current maximum priority fee per  gas.
servers:
  - url: https://base-mainnet.core.chainstack.com
security: []
paths:
  /2fc1de7f08c0465f6a28e3c355e0cb14:
    post:
      tags:
        - Ethereum Operations
      summary: eth_maxPriorityFeePerGas
      operationId: maxPriorityFeePerGas
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - jsonrpc
                - method
                - id
              properties:
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_maxPriorityFeePerGas
                id:
                  type: integer
                  default: 1
      responses:
        '200':
          description: Current maximum priority fee per gas
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: string

````