curl --request POST \
  --url https://prod.leadvector.app/v1/campaigns/{uuid}/sequences \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "steps": [
    {
      "stepNumber": 1,
      "delayDays": 3,
      "variants": [
        {
          "label": "A",
          "subjectTemplate": "Following up on our previous conversation",
          "bodyTemplate": "Hi {{firstName}},\n\nJust checking in regarding my previous email...",
          "isEnabled": true
        }
      ]
    }
  ]
}
'

import requests

url = "https://prod.leadvector.app/v1/campaigns/{uuid}/sequences"

payload = { "steps": [
        {
            "stepNumber": 1,
            "delayDays": 3,
            "variants": [
                {
                    "label": "A",
                    "subjectTemplate": "Following up on our previous conversation",
                    "bodyTemplate": "Hi {{firstName}},

Just checking in regarding my previous email...",
                    "isEnabled": True
                }
            ]
        }
    ] }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    steps: [
      {
        stepNumber: 1,
        delayDays: 3,
        variants: [
          {
            label: 'A',
            subjectTemplate: 'Following up on our previous conversation',
            bodyTemplate: 'Hi {{firstName}},\n\nJust checking in regarding my previous email...',
            isEnabled: true
          }
        ]
      }
    ]
  })
};

fetch('https://prod.leadvector.app/v1/campaigns/{uuid}/sequences', 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://prod.leadvector.app/v1/campaigns/{uuid}/sequences",
  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([
    'steps' => [
        [
                'stepNumber' => 1,
                'delayDays' => 3,
                'variants' => [
                                [
                                                                'label' => 'A',
                                                                'subjectTemplate' => 'Following up on our previous conversation',
                                                                'bodyTemplate' => 'Hi {{firstName}},

Just checking in regarding my previous email...',
                                                                'isEnabled' => true
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($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://prod.leadvector.app/v1/campaigns/{uuid}/sequences"

	payload := strings.NewReader("{\n  \"steps\": [\n    {\n      \"stepNumber\": 1,\n      \"delayDays\": 3,\n      \"variants\": [\n        {\n          \"label\": \"A\",\n          \"subjectTemplate\": \"Following up on our previous conversation\",\n          \"bodyTemplate\": \"Hi {{firstName}},\\n\\nJust checking in regarding my previous email...\",\n          \"isEnabled\": true\n        }\n      ]\n    }\n  ]\n}")

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

	req.Header.Add("x-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))

}

HttpResponse<String> response = Unirest.post("https://prod.leadvector.app/v1/campaigns/{uuid}/sequences")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"steps\": [\n    {\n      \"stepNumber\": 1,\n      \"delayDays\": 3,\n      \"variants\": [\n        {\n          \"label\": \"A\",\n          \"subjectTemplate\": \"Following up on our previous conversation\",\n          \"bodyTemplate\": \"Hi {{firstName}},\\n\\nJust checking in regarding my previous email...\",\n          \"isEnabled\": true\n        }\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://prod.leadvector.app/v1/campaigns/{uuid}/sequences")

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

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"steps\": [\n    {\n      \"stepNumber\": 1,\n      \"delayDays\": 3,\n      \"variants\": [\n        {\n          \"label\": \"A\",\n          \"subjectTemplate\": \"Following up on our previous conversation\",\n          \"bodyTemplate\": \"Hi {{firstName}},\\n\\nJust checking in regarding my previous email...\",\n          \"isEnabled\": true\n        }\n      ]\n    }\n  ]\n}"

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

{
  "message": "Campaign sequence saved successfully",
  "data": [
    {
      "stepNumber": 1,
      "delayDays": 2,
      "status": true,
      "variants": [
        {
          "label": "A",
          "subjectTemplate": "Quick question, {{firstName}}",
          "bodyTemplate": "Hi {{firstName}}, …",
          "isEnabled": true,
          "status": true,
          "createdAt": "2023-11-07T05:31:56Z",
          "updatedAt": "2023-11-07T05:31:56Z"
        }
      ],
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ]
}

{
  "statusCode": 401,
  "message": "INVALID_API_KEY",
  "traceId": "4f1c2b7e9a0d4c3b8e6f5a2d1c0b9e8f",
  "timestamp": "2026-11-03T09:41:12.000Z",
  "path": "/v1/find-email",
  "error": "Unauthorized"
}

{
  "statusCode": 401,
  "message": "INVALID_API_KEY",
  "traceId": "4f1c2b7e9a0d4c3b8e6f5a2d1c0b9e8f",
  "timestamp": "2026-11-03T09:41:12.000Z",
  "path": "/v1/find-email",
  "error": "Unauthorized"
}

{
  "statusCode": 401,
  "message": "INVALID_API_KEY",
  "traceId": "4f1c2b7e9a0d4c3b8e6f5a2d1c0b9e8f",
  "timestamp": "2026-11-03T09:41:12.000Z",
  "path": "/v1/find-email",
  "error": "Unauthorized"
}

{
  "statusCode": 401,
  "message": "INVALID_API_KEY",
  "traceId": "4f1c2b7e9a0d4c3b8e6f5a2d1c0b9e8f",
  "timestamp": "2026-11-03T09:41:12.000Z",
  "path": "/v1/find-email",
  "error": "Unauthorized"
}

{
  "statusCode": 401,
  "message": "RATE_LIMIT_EXCEEDED",
  "traceId": "4f1c2b7e9a0d4c3b8e6f5a2d1c0b9e8f",
  "timestamp": "2026-11-03T09:41:12.000Z",
  "path": "/v1/find-email",
  "limit": 10,
  "windowSeconds": 60,
  "retryAfterSeconds": 6,
  "error": "Unauthorized"
}