curl --request POST \
  --url https://app.thinnest.ai/api/v1/sequences/{sequenceId}/steps \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "template": "review_request",
  "language": "en",
  "delayHours": 48
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({template: 'review_request', language: 'en', delayHours: 48})
};

fetch('https://app.thinnest.ai/api/v1/sequences/{sequenceId}/steps', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.thinnest.ai/api/v1/sequences/{sequenceId}/steps"

payload = {
    "template": "review_request",
    "language": "en",
    "delayHours": 48
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "7c0e4b2a-9d3f-4e61-8a5c-1b7f3e9d2c08",
  "name": "After delivery",
  "status": "draft",
  "agent": "ag_2c7e9a14-5b3d-4f8e-a1c6-7d9b0e3f5a21",
  "exitOnReply": true,
  "triggerTags": [
    "delivered"
  ],
  "exitOnTags": [
    "refunded"
  ],
  "startOn": [
    "order.delivered"
  ],
  "stopOn": [
    "order.returned"
  ],
  "steps": [
    {
      "position": 1,
      "delayHours": 2,
      "template": {
        "name": "delivery_thanks",
        "language": "en"
      }
    },
    {
      "position": 2,
      "delayHours": 48,
      "template": {
        "name": "review_request",
        "language": "en"
      }
    }
  ],
  "enrolments": {
    "active": 0,
    "completed": 0,
    "exited": 0
  },
  "createdAt": "2026-10-06T10:00:04.512Z"
}

{
  "error": "\"review_request\" is approved in en, hi — pass `language` to say which."
}

{
  "error": "Send a valid API key as `Authorization: Bearer <key>`."
}

{
  "error": "This API key is read-only: it can read everything but change nothing."
}

{
  "error": "No approved template called \"review_request\" in \"hi\"."
}

{
  "error": "Another step was added at the same moment. Retry."
}

{
  "error": "Over 240 requests a minute. Slow down and retry."
}