api/v2/estimatefee - Bitcoin Cash

Example code for the api/v2/estimatefee REST method. Complete guide on how to use the api/v2/estimatefee REST method in the GetBlock Web3 documentation.

This endpoint returns the backend fee estimate for a target number of blocks to confirmation. The result is a fee rate in BCH per kilobyte.

Parameters

Parameter	Type	Location	Required	Description
blocks	integer	path	Yes	Confirmation target in blocks
conservative	boolean	query	No	Use conservative fee estimation where supported

Request

cURL

curl --location --request GET 'https://go.getblock.io/<ACCESS-TOKEN>/api/v2/estimatefee/6?conservative=true'

JavaScript

example.js

const response = await fetch(
    'https://go.getblock.io/<ACCESS-TOKEN>/api/v2/estimatefee/6?conservative=true'
);
console.log(await response.json());

Python

example.py

import requests

response = requests.get('https://go.getblock.io/<ACCESS-TOKEN>/api/v2/estimatefee/6?conservative=true')

print(response.json())

Response

{
    "result": "0.00001000"
}

Response Parameters

Field	Type	Description
result	string	Estimated fee rate as a decimal amount in BCH per kilobyte

Use Cases

• Fee Selection: Choose a fee rate for a target confirmation time

• Wallet UX: Offer fast, normal, and economy tiers from different targets

• Cost Estimation: Estimate the cost of a transaction before building it

• Conservative Mode: Request a higher-confidence estimate for urgent sends

Error Handling

HTTP Status	Message	Description
400	Bad request	The confirmation target is not a positive integer
404	Not found	The backend returned no estimate for the target
500	Internal error	The backend fee estimator failed