curl --request POST \
  --url https://v2.easystreetoffers.com/api/v2/offer-requests/prelim \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "StateOrProvince": "CA",
  "PostalCode": "94507",
  "BedroomsTotal": 3,
  "BathroomsFull": 2,
  "LivingArea": 2650,
  "LotSizeSquareFeet": 6000,
  "ParkingTotal": 2,
  "YearBuilt": 1990,
  "ListPrice": 250000,
  "OccupantType": "Owner",
  "PoolPrivateYN": false,
  "StandardStatus": "Off-market"
}
'

import requests

url = "https://v2.easystreetoffers.com/api/v2/offer-requests/prelim"

payload = {
    "StateOrProvince": "CA",
    "PostalCode": "94507",
    "BedroomsTotal": 3,
    "BathroomsFull": 2,
    "LivingArea": 2650,
    "LotSizeSquareFeet": 6000,
    "ParkingTotal": 2,
    "YearBuilt": 1990,
    "ListPrice": 250000,
    "OccupantType": "Owner",
    "PoolPrivateYN": False,
    "StandardStatus": "Off-market"
}
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({
    StateOrProvince: 'CA',
    PostalCode: '94507',
    BedroomsTotal: 3,
    BathroomsFull: 2,
    LivingArea: 2650,
    LotSizeSquareFeet: 6000,
    ParkingTotal: 2,
    YearBuilt: 1990,
    ListPrice: 250000,
    OccupantType: 'Owner',
    PoolPrivateYN: false,
    StandardStatus: 'Off-market'
  })
};

fetch('https://v2.easystreetoffers.com/api/v2/offer-requests/prelim', 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://v2.easystreetoffers.com/api/v2/offer-requests/prelim",
  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([
    'StateOrProvince' => 'CA',
    'PostalCode' => '94507',
    'BedroomsTotal' => 3,
    'BathroomsFull' => 2,
    'LivingArea' => 2650,
    'LotSizeSquareFeet' => 6000,
    'ParkingTotal' => 2,
    'YearBuilt' => 1990,
    'ListPrice' => 250000,
    'OccupantType' => 'Owner',
    'PoolPrivateYN' => false,
    'StandardStatus' => 'Off-market'
  ]),
  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://v2.easystreetoffers.com/api/v2/offer-requests/prelim"

	payload := strings.NewReader("{\n  \"StateOrProvince\": \"CA\",\n  \"PostalCode\": \"94507\",\n  \"BedroomsTotal\": 3,\n  \"BathroomsFull\": 2,\n  \"LivingArea\": 2650,\n  \"LotSizeSquareFeet\": 6000,\n  \"ParkingTotal\": 2,\n  \"YearBuilt\": 1990,\n  \"ListPrice\": 250000,\n  \"OccupantType\": \"Owner\",\n  \"PoolPrivateYN\": false,\n  \"StandardStatus\": \"Off-market\"\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://v2.easystreetoffers.com/api/v2/offer-requests/prelim")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"StateOrProvince\": \"CA\",\n  \"PostalCode\": \"94507\",\n  \"BedroomsTotal\": 3,\n  \"BathroomsFull\": 2,\n  \"LivingArea\": 2650,\n  \"LotSizeSquareFeet\": 6000,\n  \"ParkingTotal\": 2,\n  \"YearBuilt\": 1990,\n  \"ListPrice\": 250000,\n  \"OccupantType\": \"Owner\",\n  \"PoolPrivateYN\": false,\n  \"StandardStatus\": \"Off-market\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://v2.easystreetoffers.com/api/v2/offer-requests/prelim")

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  \"StateOrProvince\": \"CA\",\n  \"PostalCode\": \"94507\",\n  \"BedroomsTotal\": 3,\n  \"BathroomsFull\": 2,\n  \"LivingArea\": 2650,\n  \"LotSizeSquareFeet\": 6000,\n  \"ParkingTotal\": 2,\n  \"YearBuilt\": 1990,\n  \"ListPrice\": 250000,\n  \"OccupantType\": \"Owner\",\n  \"PoolPrivateYN\": false,\n  \"StandardStatus\": \"Off-market\"\n}"

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

{
  "matchCount": 34,
  "buyBoxesCount": 80
}

{
  "error": 123,
  "message": "<string>"
}