Task comments

List comments on a task#

The comments on a task, oldest first, including the lines Klantly wrote itself (is_system).

Scope

tasks.read — Read tasks, boards and comments

Required feature

tasks

Path parameters

Query parameters

Example request

curl "https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments" \
  -H "Authorization: Bearer $KLANTLY_API_KEY"

$client = new \GuzzleHttp\Client([
    'base_uri' => 'https://app.klantly.com/api/v1/',
    'headers' => ['Authorization' => 'Bearer ' . getenv('KLANTLY_API_KEY')],
]);

$response = $client->request('GET', 'tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments');

$data = json_decode((string) $response->getBody(), true)['data'];

const response = await fetch('https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments', {
  headers: {
    Authorization: `Bearer ${process.env.KLANTLY_API_KEY}`,
  },
});

const { data } = await response.json();

import os

import requests

response = requests.get(
    "https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments",
    headers={
        "Authorization": f"Bearer {os.environ['KLANTLY_API_KEY']}",
    },
)
data = response.json()["data"]

Response 200

The response is a list with cursor pagination: data contains the objects, meta the pagination.

{
  "data": [
    {
      "object": "task_comment",
      "id": "9d3f8449-afe1-4a6e-9dbc-c1dfe0f1a2ba",
      "task_id": "9d3f7fc5-6bad-4c2a-9f7e-8d9bacbdced6",
      "body": "Klant belt morgen terug.",
      "is_system": false,
      "author": {
        "object": "user",
        "id": "usr_0k3j9x21m4zq8p",
        "name": "Sanne Bakker"
      },
      "created_at": "2026-09-14T10:15:00Z"
    }
  ],
  "meta": {
    "limit": 50,
    "next_cursor": "eyJpZCI6IjlkM2Y2YzFlIn0",
    "prev_cursor": null
  }
}

Possible errors

• 403 insufficient_scope — This API key has no access to this action.
• 404 not_found — Not found.
• 422 validation_failed — The input is invalid.

In addition, every endpoint can return the general errors, such as an invalid key or a reached limit. See all error codes.

Post a comment#

Posts a comment on the task. The assigned user and the creator get a notification. A comment posted through the API has no author.

Scope

tasks.write — Create, update, move and complete tasks, and post comments

Required feature

tasks

Path parameters

Body (JSON)

Example request

curl -X POST "https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments" \
  -H "Authorization: Bearer $KLANTLY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: 6f1c2d3e-4a5b-4c6d-8e7f-9a0b1c2d3e4f" \
  -d '{
  "body": "Klant belt morgen terug."
}'

$client = new \GuzzleHttp\Client([
    'base_uri' => 'https://app.klantly.com/api/v1/',
    'headers' => ['Authorization' => 'Bearer ' . getenv('KLANTLY_API_KEY')],
]);

$response = $client->request('POST', 'tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments', [
    'headers' => [
        'Idempotency-Key' => '6f1c2d3e-4a5b-4c6d-8e7f-9a0b1c2d3e4f',
    ],
    'json' => [
        'body' => 'Klant belt morgen terug.',
    ],
]);

$data = json_decode((string) $response->getBody(), true)['data'];

const response = await fetch('https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.KLANTLY_API_KEY}`,
    'Content-Type': 'application/json',
    'Idempotency-Key': '6f1c2d3e-4a5b-4c6d-8e7f-9a0b1c2d3e4f',
  },
  body: JSON.stringify({
  "body": "Klant belt morgen terug."
}),
});

const { data } = await response.json();

import os

import requests

response = requests.post(
    "https://app.klantly.com/api/v1/tasks/9d3f6c1e-4b2a-4c8e-9f1a-2b3c4d5e6f70/comments",
    headers={
        "Authorization": f"Bearer {os.environ['KLANTLY_API_KEY']}",
        "Idempotency-Key": "6f1c2d3e-4a5b-4c6d-8e7f-9a0b1c2d3e4f",
    },
    json={
        "body": "Klant belt morgen terug."
    },
)
data = response.json()["data"]

Response 201

{
  "data": {
    "object": "task_comment",
    "id": "9d3f8449-afe1-4a6e-9dbc-c1dfe0f1a2ba",
    "task_id": "9d3f7fc5-6bad-4c2a-9f7e-8d9bacbdced6",
    "body": "Klant belt morgen terug.",
    "is_system": false,
    "author": {
      "object": "user",
      "id": "usr_0k3j9x21m4zq8p",
      "name": "Sanne Bakker"
    },
    "created_at": "2026-09-14T10:15:00Z"
  }
}

Possible errors

• 403 insufficient_scope — This API key has no access to this action.
• 422 validation_failed — The input is invalid.
• 422 unknown_field — The input contains an unknown field.
• 415 unsupported_media_type — This format is not supported.
• 413 payload_too_large — The request body is too large.
• 404 not_found — Not found.
• 422 idempotency_key_reused — This Idempotency-Key was already used for a different request.
• 409 idempotency_in_progress — A request with this Idempotency-Key is still in progress.

In addition, every endpoint can return the general errors, such as an invalid key or a reached limit. See all error codes.

The object#

All fields are always present; a field without a value is null.