curl --request POST \
  --url https://app.outboundlegal.com/api/v1/clients \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "clients": [
    {
      "external_id": "M-1042",
      "first_name": "Ana",
      "last_name": "Diaz",
      "address_line1": "12 Elm St",
      "city": "Newark",
      "state": "NJ",
      "zip": "07102",
      "case_type": "Motor vehicle accident"
    }
  ]
}
'

import requests

url = "https://app.outboundlegal.com/api/v1/clients"

payload = { "clients": [
        {
            "external_id": "M-1042",
            "first_name": "Ana",
            "last_name": "Diaz",
            "address_line1": "12 Elm St",
            "city": "Newark",
            "state": "NJ",
            "zip": "07102",
            "case_type": "Motor vehicle accident"
        }
    ] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    clients: [
      {
        external_id: 'M-1042',
        first_name: 'Ana',
        last_name: 'Diaz',
        address_line1: '12 Elm St',
        city: 'Newark',
        state: 'NJ',
        zip: '07102',
        case_type: 'Motor vehicle accident'
      }
    ]
  })
};

fetch('https://app.outboundlegal.com/api/v1/clients', 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://app.outboundlegal.com/api/v1/clients",
  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([
    'clients' => [
        [
                'external_id' => 'M-1042',
                'first_name' => 'Ana',
                'last_name' => 'Diaz',
                'address_line1' => '12 Elm St',
                'city' => 'Newark',
                'state' => 'NJ',
                'zip' => '07102',
                'case_type' => 'Motor vehicle accident'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://app.outboundlegal.com/api/v1/clients"

	payload := strings.NewReader("{\n  \"clients\": [\n    {\n      \"external_id\": \"M-1042\",\n      \"first_name\": \"Ana\",\n      \"last_name\": \"Diaz\",\n      \"address_line1\": \"12 Elm St\",\n      \"city\": \"Newark\",\n      \"state\": \"NJ\",\n      \"zip\": \"07102\",\n      \"case_type\": \"Motor vehicle accident\"\n    }\n  ]\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://app.outboundlegal.com/api/v1/clients")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"clients\": [\n    {\n      \"external_id\": \"M-1042\",\n      \"first_name\": \"Ana\",\n      \"last_name\": \"Diaz\",\n      \"address_line1\": \"12 Elm St\",\n      \"city\": \"Newark\",\n      \"state\": \"NJ\",\n      \"zip\": \"07102\",\n      \"case_type\": \"Motor vehicle accident\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.outboundlegal.com/api/v1/clients")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"clients\": [\n    {\n      \"external_id\": \"M-1042\",\n      \"first_name\": \"Ana\",\n      \"last_name\": \"Diaz\",\n      \"address_line1\": \"12 Elm St\",\n      \"city\": \"Newark\",\n      \"state\": \"NJ\",\n      \"zip\": \"07102\",\n      \"case_type\": \"Motor vehicle accident\"\n    }\n  ]\n}"

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

{
  "results": [
    {
      "index": 0,
      "status": "created",
      "id": "0b6c1d8e-6a43-4c1e-9d0f-2f5b9a7e4c21"
    }
  ]
}

{
  "error": {
    "code": "invalid_request",
    "message": "limit must be a whole number from 1 to 100."
  }
}

{
  "error": {
    "code": "unauthorized",
    "message": "Send your API key as: Authorization: Bearer obl_…"
  }
}

{
  "error": {
    "code": "not_enabled",
    "message": "The API isn't turned on for this account yet."
  }
}

{
  "error": {
    "code": "rate_limited",
    "message": "Too many requests. The limit is 120 per minute per key."
  }
}

{
  "error": {
    "code": "unauthorized",
    "message": "<string>"
  }
}