curl --request POST \
  --url https://api.zapier.com/v2/authentications \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "title": "My new auth",
    "app": "8cdbc496-c95c-4f19-b3a3-fee03ed5f924",
    "authentication_fields": {
      "secret": "example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ"
    }
  }
}
'

import requests

url = "https://api.zapier.com/v2/authentications"

payload = { "data": {
        "title": "My new auth",
        "app": "8cdbc496-c95c-4f19-b3a3-fee03ed5f924",
        "authentication_fields": { "secret": "example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ" }
    } }
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({
    data: {
      title: 'My new auth',
      app: '8cdbc496-c95c-4f19-b3a3-fee03ed5f924',
      authentication_fields: {secret: 'example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ'}
    }
  })
};

fetch('https://api.zapier.com/v2/authentications', 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://api.zapier.com/v2/authentications",
  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([
    'data' => [
        'title' => 'My new auth',
        'app' => '8cdbc496-c95c-4f19-b3a3-fee03ed5f924',
        'authentication_fields' => [
                'secret' => 'example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ'
        ]
    ]
  ]),
  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://api.zapier.com/v2/authentications"

	payload := strings.NewReader("{\n  \"data\": {\n    \"title\": \"My new auth\",\n    \"app\": \"8cdbc496-c95c-4f19-b3a3-fee03ed5f924\",\n    \"authentication_fields\": {\n      \"secret\": \"example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ\"\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://api.zapier.com/v2/authentications")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"title\": \"My new auth\",\n    \"app\": \"8cdbc496-c95c-4f19-b3a3-fee03ed5f924\",\n    \"authentication_fields\": {\n      \"secret\": \"example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ\"\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.zapier.com/v2/authentications")

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  \"data\": {\n    \"title\": \"My new auth\",\n    \"app\": \"8cdbc496-c95c-4f19-b3a3-fee03ed5f924\",\n    \"authentication_fields\": {\n      \"secret\": \"example_E4CrHVvRuxTXrPFLyyZFeRJwJcx2ELQZ\"\n    }\n  }\n}"

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

{
  "links": {
    "next": null,
    "prev": null
  },
  "meta": {
    "count": 1,
    "limit": 1,
    "offset": 0
  },
  "data": [
    {
      "type": "authentication",
      "id": "019487c8-7d3b-7e2f-a04e-3b2c1d5e6f70",
      "app": "a8aaed31-e257-4479-aaa9-ca02fe2fab04",
      "is_expired": false,
      "title": "Example zapier@example.com #5"
    }
  ]
}

{
  "errors": [
    {
      "status": 400,
      "code": "parse_error",
      "title": "ParseError",
      "detail": "Malformed request.",
      "source": null,
      "meta": {
        "source": "ZAPIER",
        "full_details": {
          "message": "Malformed request.",
          "code": "parse_error"
        }
      }
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 500,
      "code": "error",
      "title": "APIException",
      "detail": "A server error occurred.",
      "source": null,
      "meta": {
        "source": "ZAPIER",
        "full_details": {
          "message": "A server error occurred.",
          "code": "error"
        }
      }
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 123,
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>",
        "header": "<string>"
      },
      "meta": {}
    }
  ]
}