blockchainEstimateFee

Overview

The blockchain.estimatefee method provides an estimation of the transaction fee per kilobyte needed for a transaction to be included in a block within a specified number of blocks. This is useful for applications that need to dynamically calculate transaction fees based on current network conditions.

Parameters

Name	Type	Required	Description
number	integer	Yes	The number of blocks within which the transaction should confirm.

Returns

The method returns the estimated fee in coin units per kilobyte. If the server cannot estimate the fee due to insufficient data, it returns -1.

Field	Description
fee	The estimated transaction fee per kilobyte or -1 if an estimate cannot be made.

Example Result

0.00101079

Request Example

curl --location 'https://api.tatum.io/v3/blockchain/node/rostrum-mainnet/' \
--header 'Content-Type: application/json' \
--header 'x-api-key: {API_KEY}' \
--data '{
    "method": "blockchain.estimatefee",
    "params": [2],
    "id": 1,
    "jsonrpc": "2.0"
}'

// yarn add @tatumio/tatum

import { TatumSDK, Rostrum, Network } from "@tatumio/tatum";

const rostrum = await TatumSDK.init<Rostrum>({ network: Network.ROSTRUM_MAINNET });

const feeEstimate = await tatum.rpc.estimateFee(2);

console.log('Estimated Fee:', feeEstimate);

await rostrum.destroy(); // Destroy Tatum SDK - needed for stopping background jobs when done