How to use API Keys

At present, an API Key is used by adding the parameter TRON_PRO_API_KEY=API Key to the header of the request.

HTTP Examples:

curl -X POST \ \
  -H 'Content-Type: application/json' \
  -H 'TRON-PRO-API-KEY: 25f66928-0b70-48cd-9ac6-da6f8247c663' \
  -d '{
    "to_address": "41e9d79cc47518930bc322d9bf7cddd260a0260a8d",
    "owner_address": "41D1E7A6BC354106CB410E65FF8B181C600FF14292",
    "amount": 1000
import requests

url = ""

payload = "{\n    \"to_address\": \"41e9d79cc47518930bc322d9bf7cddd260a0260a8d\",\n    \"owner_address\": \"41D1E7A6BC354106CB410E65FF8B181C600FF14292\",\n    \"amount\": 1000\n}"
headers = {
    'Content-Type': "application/json",
    'TRON-PRO-API-KEY': "25f66928-0b70-48cd-9ac6-da6f8247c663"
response = requests.request("POST", url, data=payload, headers=headers)
var request = require("request");

var options = { method: 'POST',
  url: '',
  headers: {  
     'TRON-PRO-API-KEY': '25f66928-0b70-48cd-9ac6-da6f8247c663',
     'Content-Type': 'application/json' 
  body: { 
      to_address: '41e9d79cc47518930bc322d9bf7cddd260a0260a8d',
     owner_address: '41D1E7A6BC354106CB410E65FF8B181C600FF14292',
     amount: 1000 
  json: true 

request(options, function (error, response, body) {
  if (error) throw new Error(error);


GRPC Examples:

import io.grpc.Metadata;
import io.grpc.stub.MetadataUtils;

// add these new codes: create a custom header
Metadata header=new Metadata();
Metadata.Key<String> key =
    Metadata.Key.of(“TRON-PRO-API-KEY”, Metadata.ASCII_STRING_MARSHALLER);
header.put(key, “25f66928-0b70-48cd-9ac6-da6f8247c663");

// create client stub
ServiceGrpc.ServiceBlockingStub stub = ServiceGrpc.newBlockingStub(channel);

// add this new line to attach header
stub = MetadataUtils.attachHeaders(stub, header);

public Block getNowBlock() {
    return stub.getNowBlock(EmptyMessage.newBuilder().build());