curl --request POST \
  --url https://api.mn.co/admin/v1/networks/{network_id}/custom_fields \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "title": "Favorite Color",
  "response_type": "dropdown_single_select",
  "privacy": "public",
  "response_by": "individual_member",
  "description": "Select your favorite color",
  "placeholder": "Enter your answer here",
  "allow_ad_hoc": true,
  "max_responses": 5,
  "options": [
    "<string>"
  ],
  "min_value": 0,
  "max_value": 100,
  "location_granularity": "city"
}
'

import requests

url = "https://api.mn.co/admin/v1/networks/{network_id}/custom_fields"

payload = {
    "title": "Favorite Color",
    "response_type": "dropdown_single_select",
    "privacy": "public",
    "response_by": "individual_member",
    "description": "Select your favorite color",
    "placeholder": "Enter your answer here",
    "allow_ad_hoc": True,
    "max_responses": 5,
    "options": ["<string>"],
    "min_value": 0,
    "max_value": 100,
    "location_granularity": "city"
}
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({
    title: 'Favorite Color',
    response_type: 'dropdown_single_select',
    privacy: 'public',
    response_by: 'individual_member',
    description: 'Select your favorite color',
    placeholder: 'Enter your answer here',
    allow_ad_hoc: true,
    max_responses: 5,
    options: ['<string>'],
    min_value: 0,
    max_value: 100,
    location_granularity: 'city'
  })
};

fetch('https://api.mn.co/admin/v1/networks/{network_id}/custom_fields', 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.mn.co/admin/v1/networks/{network_id}/custom_fields",
  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([
    'title' => 'Favorite Color',
    'response_type' => 'dropdown_single_select',
    'privacy' => 'public',
    'response_by' => 'individual_member',
    'description' => 'Select your favorite color',
    'placeholder' => 'Enter your answer here',
    'allow_ad_hoc' => true,
    'max_responses' => 5,
    'options' => [
        '<string>'
    ],
    'min_value' => 0,
    'max_value' => 100,
    'location_granularity' => 'city'
  ]),
  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.mn.co/admin/v1/networks/{network_id}/custom_fields"

	payload := strings.NewReader("{\n  \"title\": \"Favorite Color\",\n  \"response_type\": \"dropdown_single_select\",\n  \"privacy\": \"public\",\n  \"response_by\": \"individual_member\",\n  \"description\": \"Select your favorite color\",\n  \"placeholder\": \"Enter your answer here\",\n  \"allow_ad_hoc\": true,\n  \"max_responses\": 5,\n  \"options\": [\n    \"<string>\"\n  ],\n  \"min_value\": 0,\n  \"max_value\": 100,\n  \"location_granularity\": \"city\"\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.mn.co/admin/v1/networks/{network_id}/custom_fields")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"title\": \"Favorite Color\",\n  \"response_type\": \"dropdown_single_select\",\n  \"privacy\": \"public\",\n  \"response_by\": \"individual_member\",\n  \"description\": \"Select your favorite color\",\n  \"placeholder\": \"Enter your answer here\",\n  \"allow_ad_hoc\": true,\n  \"max_responses\": 5,\n  \"options\": [\n    \"<string>\"\n  ],\n  \"min_value\": 0,\n  \"max_value\": 100,\n  \"location_granularity\": \"city\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.mn.co/admin/v1/networks/{network_id}/custom_fields")

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  \"title\": \"Favorite Color\",\n  \"response_type\": \"dropdown_single_select\",\n  \"privacy\": \"public\",\n  \"response_by\": \"individual_member\",\n  \"description\": \"Select your favorite color\",\n  \"placeholder\": \"Enter your answer here\",\n  \"allow_ad_hoc\": true,\n  \"max_responses\": 5,\n  \"options\": [\n    \"<string>\"\n  ],\n  \"min_value\": 0,\n  \"max_value\": 100,\n  \"location_granularity\": \"city\"\n}"

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

{
  "id": "1234",
  "created_at": "2026-09-26T01:29:14+00:00",
  "updated_at": "2026-09-26T01:29:14+00:00",
  "title": "Favorite Color",
  "response_type": "dropdown_single_select",
  "location_granularity": "city"
}

{
  "error": "<string>"
}