curl --request PUT \
  --url https://api.kit.com/v4/sequences/{id} \
  --header 'Content-Type: application/json' \
  --header 'X-Kit-Api-Key: <api-key>' \
  --data '
{
  "name": "New Name",
  "email_address": "joe1180@ck.lol",
  "email_template_id": 40,
  "send_days": [
    "tuesday",
    "thursday"
  ],
  "send_hour": 14,
  "time_zone": "America/Chicago",
  "active": false,
  "repeat": true,
  "hold": true,
  "exclude_subscriber_sources": [
    {
      "type": "tag",
      "ids": [
        4
      ]
    },
    {
      "type": "sequence",
      "ids": [
        49
      ]
    }
  ]
}
'

require 'uri'
require 'net/http'

url = URI("https://api.kit.com/v4/sequences/{id}")

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

request = Net::HTTP::Put.new(url)
request["X-Kit-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"New Name\",\n  \"email_address\": \"joe1180@ck.lol\",\n  \"email_template_id\": 40,\n  \"send_days\": [\n    \"tuesday\",\n    \"thursday\"\n  ],\n  \"send_hour\": 14,\n  \"time_zone\": \"America/Chicago\",\n  \"active\": false,\n  \"repeat\": true,\n  \"hold\": true,\n  \"exclude_subscriber_sources\": [\n    {\n      \"type\": \"tag\",\n      \"ids\": [\n        4\n      ]\n    },\n    {\n      \"type\": \"sequence\",\n      \"ids\": [\n        49\n      ]\n    }\n  ]\n}"

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

const options = {
  method: 'PUT',
  headers: {'X-Kit-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'New Name',
    email_address: 'joe1180@ck.lol',
    email_template_id: 40,
    send_days: ['tuesday', 'thursday'],
    send_hour: 14,
    time_zone: 'America/Chicago',
    active: false,
    repeat: true,
    hold: true,
    exclude_subscriber_sources: [{type: 'tag', ids: [4]}, {type: 'sequence', ids: [49]}]
  })
};

fetch('https://api.kit.com/v4/sequences/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.kit.com/v4/sequences/{id}"

	payload := strings.NewReader("{\n  \"name\": \"New Name\",\n  \"email_address\": \"joe1180@ck.lol\",\n  \"email_template_id\": 40,\n  \"send_days\": [\n    \"tuesday\",\n    \"thursday\"\n  ],\n  \"send_hour\": 14,\n  \"time_zone\": \"America/Chicago\",\n  \"active\": false,\n  \"repeat\": true,\n  \"hold\": true,\n  \"exclude_subscriber_sources\": [\n    {\n      \"type\": \"tag\",\n      \"ids\": [\n        4\n      ]\n    },\n    {\n      \"type\": \"sequence\",\n      \"ids\": [\n        49\n      ]\n    }\n  ]\n}")

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

	req.Header.Add("X-Kit-Api-Key", "<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))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.kit.com/v4/sequences/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'New Name',
    'email_address' => 'joe1180@ck.lol',
    'email_template_id' => 40,
    'send_days' => [
        'tuesday',
        'thursday'
    ],
    'send_hour' => 14,
    'time_zone' => 'America/Chicago',
    'active' => false,
    'repeat' => true,
    'hold' => true,
    'exclude_subscriber_sources' => [
        [
                'type' => 'tag',
                'ids' => [
                                4
                ]
        ],
        [
                'type' => 'sequence',
                'ids' => [
                                49
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Kit-Api-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

import requests

url = "https://api.kit.com/v4/sequences/{id}"

payload = {
    "name": "New Name",
    "email_address": "joe1180@ck.lol",
    "email_template_id": 40,
    "send_days": ["tuesday", "thursday"],
    "send_hour": 14,
    "time_zone": "America/Chicago",
    "active": False,
    "repeat": True,
    "hold": True,
    "exclude_subscriber_sources": [
        {
            "type": "tag",
            "ids": [4]
        },
        {
            "type": "sequence",
            "ids": [49]
        }
    ]
}
headers = {
    "X-Kit-Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "sequence": {
    "id": 50,
    "name": "New Name",
    "hold": true,
    "repeat": true,
    "created_at": "2026-07-28T03:01:51Z",
    "updated_at": "2026-07-28T03:01:52Z",
    "email_address": "joe1180@ck.lol",
    "email_template_id": 40,
    "send_days": [
      "tuesday",
      "thursday"
    ],
    "send_hour": 14,
    "time_zone": "America/Chicago",
    "active": false,
    "exclude_subscriber_sources": [
      {
        "type": "sequence",
        "ids": [
          49
        ]
      },
      {
        "type": "tag",
        "ids": [
          4
        ]
      }
    ],
    "email_count": 0,
    "subscriber_count": 0
  }
}

{
  "errors": [
    "The access token is invalid"
  ]
}

{
  "errors": [
    "You do not have sufficient permissions to access this resource. Please contact support."
  ]
}

{
  "errors": [
    "Not Found"
  ]
}

{
  "errors": [
    "name can't be blank"
  ]
}