curl --request DELETE \
  --url https://app.thinnest.ai/api/v1/customers/{id} \
  --header 'Authorization: Bearer <token>'

const options = {method: 'DELETE', headers: {Authorization: 'Bearer <token>'}};

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

import requests

url = "https://app.thinnest.ai/api/v1/customers/{id}"

headers = {"Authorization": "Bearer <token>"}

response = requests.delete(url, headers=headers)

print(response.text)

{
  "id": "org_5b2f9c1e-8a4d-4f7b-9e3a-2c6d1f0a7b84",
  "name": "Sunrise Dental Clinic",
  "externalId": "clinic-0042",
  "metadata": {
    "city": "Pune",
    "tier": "gold",
    "seats": 3
  },
  "timezone": "Asia/Kolkata",
  "allottedCallLines": 2,
  "archivedAt": "2026-10-06T10:05:41.203Z",
  "eraseAfter": "2026-11-05T10:05:41.203Z",
  "createdAt": "2026-10-02T06:14:22.418Z"
}

{
  "error": "Manage customers without the Thinnest-Workspace header: they belong to your own workspace."
}

{
  "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": "Customer not found."
}

{
  "error": "This customer still holds phone number +918041234567. Release it first: that is permanent, so it is never done as a side effect of deleting."
}

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