wallet/getchainparameters

Get current blockchain parameters including fees, voting settings, and resource configurations.

Endpoint

POST /wallet/getchainparameters

Parameters

No parameters required.

Response

Returns chain parameters object containing:

• chainParameter - Array of parameter objects, each with:
  • key - Parameter name
  • value - Parameter value

Key Parameters Include

Parameter	Description	Typical Value
getMaintenanceTimeInterval	Super Representative voting cycle	21600000 (6 hours)
getAccountUpgradeCost	Cost to upgrade account	9999000000 SUN
getCreateAccountFee	Fee to create new account	100000 SUN
getTransactionFee	Base transaction fee	1000 SUN
getAssetIssueFee	Fee to issue TRC10 token	1024000000 SUN
getWitnessPayPerBlock	SR block reward	16000000 SUN
getWitnessStandbyAllowance	SR standby allowance	115200000000 SUN
getCreateNewAccountFeeInSystemContract	System contract account fee	1000000 SUN
getCreateNewAccountBandwidthRate	Bandwidth for new account	1
getAllowCreationOfContracts	Contract creation enabled	1
getRemoveThePowerOfTheGr	Remove GR power	0
getEnergyFee	Energy unit price	420 SUN
getExchangeCreateFee	Exchange creation fee	1024000000 SUN
getMaxCpuTimeOfOneTx	Max CPU time per transaction	50 ms
getAllowUpdateAccountName	Account name update allowed	0
getAllowSameTokenName	Duplicate token names allowed	1
getAllowDelegateResource	Resource delegation enabled	1
getTotalEnergyLimit	Total network energy limit	90000000000
getAllowTvmTransferTrc10	TVM TRC10 transfers enabled	1
getTotalEnergyCurrentLimit	Current total energy limit	90000000000
getAllowMultiSign	Multi-signature enabled	1
getAllowAdaptiveEnergy	Adaptive energy enabled	0
getTotalEnergyTargetLimit	Target energy limit	0
getTotalEnergyAverageUsage	Average energy usage	0
getUpdateAccountPermissionFee	Permission update fee	100000000 SUN
getMultiSignFee	Multi-signature fee	1000000 SUN
getAllowProtoFilterNum	Protocol filter number	0
getAllowAccountStateRoot	Account state root enabled	1
getAllowTvmConstantinople	TVM Constantinople enabled	1
getAllowTvmSolidity059	TVM Solidity 0.5.9 enabled	1
getAdaptiveResourceLimitTargetRatio	Resource limit target ratio	10
getAdaptiveResourceLimitMultiplier	Resource limit multiplier	1000
getChangeDelegation	Delegation changes enabled	1
getWitness127PayPerBlock	Top 127 witness pay	160000000 SUN
getAllowTvmShanghai	TVM Shanghai enabled	1
getAllowTvmLondon	TVM London enabled	1
getAllowHigherLimitForMaxCpuTimeOfOneTx	Higher CPU time limit	1
getFreeNetLimit	Daily free bandwidth	600
getTotalNetLimit	Total network bandwidth	43200000000

Implementation Examples

JavaScript

// Get chain parameters
const response = await fetch('https://api-tron-mainnet.n.dwellir.com/YOUR_API_KEY/wallet/getchainparameters', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({}),
});

const data = await response.json();

// Parse parameters into usable format
const parameters = {};
data.chainParameter.forEach(param => {
  parameters[param.key] = param.value;
});

console.log('Chain Parameters:', parameters);

// Calculate fees
const createAccountFee = parameters.getCreateAccountFee / 1000000; // Convert to TRX
const transactionFee = parameters.getTransactionFee / 1000000;
const energyPrice = parameters.getEnergyFee / 1000000;

console.log(`Create Account Fee: ${createAccountFee} TRX`);
console.log(`Transaction Fee: ${transactionFee} TRX`);
console.log(`Energy Price: ${energyPrice} TRX per unit`);

Python

import requests

url = "https://api-tron-mainnet.n.dwellir.com/YOUR_API_KEY/wallet/getchainparameters"

response = requests.post(url, json={})
data = response.json()

# Parse parameters
parameters = {}
for param in data['chainParameter']:
    parameters[param['key']] = param['value']

print("Chain Parameters:")
for key, value in parameters.items():
    print(f"  {key}: {value}")

# Extract important fees
create_account_fee = parameters.get('getCreateAccountFee', 0) / 1_000_000
transaction_fee = parameters.get('getTransactionFee', 0) / 1_000_000
energy_price = parameters.get('getEnergyFee', 0) / 1_000_000

print(f"\nFees (in TRX):")
print(f"  Create Account: {create_account_fee}")
print(f"  Transaction: {transaction_fee}")
print(f"  Energy Price: {energy_price} per unit")

# Check network limits
free_bandwidth = parameters.get('getFreeNetLimit', 0)
total_energy = parameters.get('getTotalEnergyLimit', 0)

print(f"\nResource Limits:")
print(f"  Free Daily Bandwidth: {free_bandwidth}")
print(f"  Total Network Energy: {total_energy:,}")

cURL

# Get chain parameters
curl -X POST https://api-tron-mainnet.n.dwellir.com/YOUR_API_KEY/wallet/getchainparameters \
  -H "Content-Type: application/json" \
  -d '{}'

# Parse specific parameter (using jq)
curl -X POST https://api-tron-mainnet.n.dwellir.com/YOUR_API_KEY/wallet/getchainparameters \
  -H "Content-Type: application/json" \
  -d '{}' | jq '.chainParameter[] | select(.key == "getEnergyFee")'

Example Response

{
  "chainParameter": [
    {
      "key": "getMaintenanceTimeInterval",
      "value": 21600000
    },
    {
      "key": "getAccountUpgradeCost",
      "value": 9999000000
    },
    {
      "key": "getCreateAccountFee",
      "value": 100000
    },
    {
      "key": "getTransactionFee",
      "value": 1000
    },
    {
      "key": "getEnergyFee",
      "value": 420
    },
    {
      "key": "getFreeNetLimit",
      "value": 600
    },
    {
      "key": "getTotalEnergyLimit",
      "value": 90000000000
    },
    {
      "key": "getAllowDelegateResource",
      "value": 1
    },
    {
      "key": "getAllowMultiSign",
      "value": 1
    },
    {
      "key": "getWitnessPayPerBlock",
      "value": 16000000
    }
  ]
}

Use Cases

• Fee Calculation: Calculate transaction costs before execution
• Resource Planning: Understand energy and bandwidth pricing
• Network Monitoring: Track parameter changes over time
• DApp Configuration: Adjust application based on network settings
• Governance Tracking: Monitor voting and proposal parameters

Related Methods

• wallet/getaccountresource - Get account resources
• wallet/getnodeinfo - Get node information
• wallet/estimateenergy - Estimate energy consumption