Body Parameters

tx

string

REQUIRED

The transaction hash in hexadecimal format

Returns

weight

object

Contains details about the computational effort required for the operation

refTime

string

The weight of computational time used based on some reference hardware

proofSize

string

The weight of storage space used by proof of validity

class

string

The extrinsic class. It can be one of these - Normal, Operational or Mandatory

partialFee

string

The expected inclusion fee for the transaction. Note that the fee rate changes up to 30% in a 24 hour period and this will not be the exact fee

Request

1
# AssetHub (default) - for transaction fee estimation on AssetHub parachain
2
curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/transaction/fee-estimate' \
3
--header 'Content-Type: application/json' \
4
--header 'Accept: application/json' \
5
--data '{
6
  "tx": "YOUR_TRANSACTION"
7
}'
8

9
# Polkadot Relaychain - for transaction fee estimation on Relaychain (requires /rc prefix)
10
curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/rc/transaction/fee-estimate' \
11
--header 'Content-Type: application/json' \
12
--header 'Accept: application/json' \
13
--data '{
14
  "tx": "YOUR_TRANSACTION"
15
}'

1
# AssetHub (default) - for transaction fee estimation on AssetHub parachain
2
curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/transaction/fee-estimate' \
3
--header 'Content-Type: application/json' \
4
--header 'Accept: application/json' \
5
--data '{
6
  "tx": "YOUR_TRANSACTION"
7
}'
8

9
# Polkadot Relaychain - for transaction fee estimation on Relaychain (requires /rc prefix)
10
curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/rc/transaction/fee-estimate' \
11
--header 'Content-Type: application/json' \
12
--header 'Accept: application/json' \
13
--data '{
14
  "tx": "YOUR_TRANSACTION"
15
}'

1
// For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
2

3
const myHeaders = new Headers();
4
myHeaders.append("Content-Type", "application/json");
5
myHeaders.append("Accept", "application/json");
6

7
const raw = JSON.stringify({
8
  "tx": "YOUR_TRANSACTION"
9
});
10

11
const requestOptions = {
12
  method: "POST",
13
  headers: myHeaders,
14
  body: raw,
15
  redirect: "follow"
16
};
17

18
fetch("{(url}}transaction/fee-estimate", requestOptions)
19
  .then((response) => response.text())
20
  .then((result) => console.log(result))
21
  .catch((error) => console.error(error));

1
// For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
2

3
const myHeaders = new Headers();
4
myHeaders.append("Content-Type", "application/json");
5
myHeaders.append("Accept", "application/json");
6

7
const raw = JSON.stringify({
8
  "tx": "YOUR_TRANSACTION"
9
});
10

11
const requestOptions = {
12
  method: "POST",
13
  headers: myHeaders,
14
  body: raw,
15
  redirect: "follow"
16
};
17

18
fetch("{(url}}transaction/fee-estimate", requestOptions)
19
  .then((response) => response.text())
20
  .then((result) => console.log(result))
21
  .catch((error) => console.error(error));

1
import requests
2
# For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
3

4
import json
5

6
url = "{(url}}transaction/fee-estimate"
7

8
payload = json.dumps({
9
  "tx": "YOUR_TRANSACTION"
10
})
11
headers = {
12
  'Content-Type': 'application/json',
13
  'Accept': 'application/json'
14
}
15

16
response = requests.request("POST", url, headers=headers, data=payload)
17

18
print(response.text)
19

1
import requests
2
# For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
3

4
import json
5

6
url = "{(url}}transaction/fee-estimate"
7

8
payload = json.dumps({
9
  "tx": "YOUR_TRANSACTION"
10
})
11
headers = {
12
  'Content-Type': 'application/json',
13
  'Accept': 'application/json'
14
}
15

16
response = requests.request("POST", url, headers=headers, data=payload)
17

18
print(response.text)
19

1
require "uri"
2
require "json"
3
# For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
4

5
require "net/http"
6

7
url = URI("{(url}}transaction/fee-estimate")
8

9
http = Net::HTTP.new(url.host, url.port);
10
request = Net::HTTP::Post.new(url)
11
request["Content-Type"] = "application/json"
12
request["Accept"] = "application/json"
13
request.body = JSON.dump({
14
  "tx": "YOUR_TRANSACTION"
15
})
16

17
response = http.request(request)
18
puts response.read_body
19

1
require "uri"
2
require "json"
3
# For Polkadot Relaychain access, add '/rc' after https://docs-demo.dot-mainnet.quiknode.pro/ (e.g., https://docs-demo.dot-mainnet.quiknode.pro/rc/accounts/...)
4

5
require "net/http"
6

7
url = URI("{(url}}transaction/fee-estimate")
8

9
http = Net::HTTP.new(url.host, url.port);
10
request = Net::HTTP::Post.new(url)
11
request["Content-Type"] = "application/json"
12
request["Accept"] = "application/json"
13
request.body = JSON.dump({
14
  "tx": "YOUR_TRANSACTION"
15
})
16

17
response = http.request(request)
18
puts response.read_body
19

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