curl --request POST \
  --url https://ste.symmetry.com/ste-hosted/v2/benefitParameterData \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "BenefitParameterDataRequest": {
    "benefitType": [
      "Benefit401K"
    ],
    "payDate": "2026-08-31"
  }
}
'

import requests

url = "https://ste.symmetry.com/ste-hosted/v2/benefitParameterData"

payload = { "BenefitParameterDataRequest": {
        "benefitType": ["Benefit401K"],
        "payDate": "2026-08-31"
    } }
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    BenefitParameterDataRequest: {benefitType: ['Benefit401K'], payDate: '2026-08-31'}
  })
};

fetch('https://ste.symmetry.com/ste-hosted/v2/benefitParameterData', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://ste.symmetry.com/ste-hosted/v2/benefitParameterData",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'BenefitParameterDataRequest' => [
        'benefitType' => [
                'Benefit401K'
        ],
        'payDate' => '2026-08-31'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://ste.symmetry.com/ste-hosted/v2/benefitParameterData"

	payload := strings.NewReader("{\n  \"BenefitParameterDataRequest\": {\n    \"benefitType\": [\n      \"Benefit401K\"\n    ],\n    \"payDate\": \"2026-08-31\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://ste.symmetry.com/ste-hosted/v2/benefitParameterData")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"BenefitParameterDataRequest\": {\n    \"benefitType\": [\n      \"Benefit401K\"\n    ],\n    \"payDate\": \"2026-08-31\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://ste.symmetry.com/ste-hosted/v2/benefitParameterData")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"BenefitParameterDataRequest\": {\n    \"benefitType\": [\n      \"Benefit401K\"\n    ],\n    \"payDate\": \"2026-08-31\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "BenefitParameterDataResponse": {
    "benefitCollection": [
      {
        "benefitParameterData": [
          {
            "benefitType": "Benefit401K",
            "parameterName": "catchUpAmt",
            "description": "Catch-up contribution amount for employees 50 and older.",
            "regex": "^[0-9]+(\\.[0-9]{1,2})?$",
            "regexType": "SingleValue",
            "regexDescription": "A dollar amount with up to two decimal places.",
            "listValues": null,
            "defaultValue": "7500",
            "helpText": "Additional pre-tax amount allowed for catch-up eligible employees.",
            "dataType": "Dollar",
            "isOptional": true,
            "taxEffectiveDate": null
          }
        ]
      }
    ],
    "transactionStamp": {
      "calcDateTime": "2026-03-24T13:32:44Z",
      "steVersion": "2026-R1",
      "schemaVersion": "v2",
      "totalTransactions": 1,
      "failedTransactions": 0,
      "transactionType": "BenefitParameterData"
    },
    "errorStatus": {
      "errorCode": 0,
      "errorMessage": "No error"
    }
  }
}