Update a task
Update a task. Only sent fields change
Request
- x-api-key: <your-api-key>
- Content-Type: application/json
Response
{
"status": "success",
"task": {},
"tokensDeducted": 1
}What it does
Update a task. Only sent fields change
Request
Parameters
| Field | In | Type | Required | Description |
|---|---|---|---|---|
task_id | path | string | yes | Numeric Asana task gid |
Body
| Field | Type | Required | Description |
|---|---|---|---|
accountId | string | no | |
completed | boolean | no | |
name | string | no | |
notes | string | no |
Example request
{
"accountId": "acc_998293",
"completed": true,
"name": "Ada Lovelace",
"notes": "<notes>"
}Response
| Field | Type | Description |
|---|---|---|
status | string | |
task | object | |
tokensDeducted | integer |
Example response
{
"status": "success",
"task": {},
"tokensDeducted": 1
}Errors
Every error answers with the same envelope: an HTTP status, a machine code and a sentence.
400 | The body or a parameter failed validation. The details array names the field. |
401 | No key, a revoked key or a wrong header. Send x-api-key. |
402 | The wallet cannot cover this call. Top up or wait for the monthly grant. |
404 | The resource does not exist, or it is not yours. Both answer identically and cost nothing. |
429 | Over the per-minute quota of your tier. Back off and retry. |
5xx | Upstream refused or timed out. The call is not billed. |
Code
curl -X PATCH 'https://app.castomapi.com/v1/asana/tasks/{task_id}' \
-H 'x-api-key: <your-api-key>' \
-H 'Content-Type: application/json' \
-d '{"accountId": "acc_998293", "completed": true, "name": "Ada Lovelace", "notes": "<notes>"}'const res = await fetch('https://app.castomapi.com/v1/asana/tasks/{task_id}', {
method: 'PATCH',
headers: { 'x-api-key': '<your-api-key>', 'Content-Type': 'application/json' },
body: JSON.stringify({"accountId": "acc_998293", "completed": true, "name": "Ada Lovelace", "notes": "<notes>"})
});
const data = await res.json();
console.log(data);import { request } from 'node:https';
// Node 18+ has fetch built in
const res = await fetch('https://app.castomapi.com/v1/asana/tasks/{task_id}', {
method: 'PATCH',
headers: { 'x-api-key': '<your-api-key>', 'Content-Type': 'application/json' },
body: JSON.stringify({"accountId": "acc_998293", "completed": true, "name": "Ada Lovelace", "notes": "<notes>"})
});
const data = await res.json();
console.log(data);import requests
res = requests.patch(
'https://app.castomapi.com/v1/asana/tasks/{task_id}',
headers={'x-api-key': '<your-api-key>'},
json={"accountId": "acc_998293", "completed": True, "name": "Ada Lovelace", "notes": "<notes>"},
timeout=30,
)
print(res.json())<?php
$ch = curl_init('https://app.castomapi.com/v1/asana/tasks/{task_id}');
curl_setopt_array($ch, [
CURLOPT_CUSTOMREQUEST => 'PATCH',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => ['x-api-key: <your-api-key>', 'Content-Type: application/json'],
CURLOPT_POSTFIELDS => json_encode(['accountId' => 'acc_998293', 'completed' => true, 'name' => 'Ada Lovelace', 'notes' => '<notes>']),
]);
$data = json_decode(curl_exec($ch), true);
print_r($data);Cost and limits
This operation costs 1 token. A call that fails is never billed. Every account gets 1000 free tokens a month; paid balances never expire.
Rate limits per minute
| No key | 10 |
| Free | 60 |
| Pro | 300 |
| Enterprise | 1200 |
Questions
What does Update a task cost?
1 token per successful call, debited from your wallet after the response. Failed calls are free. Every account receives 1000 free tokens a month.
How do I authenticate?
Send your key in the x-api-key header. One key covers every metered endpoint; there is nothing to enable per endpoint.
Can I send an Authorization: Bearer token instead?
Not for a metered endpoint — those take the x-api-key header and nothing else. Bearer tokens belong to the account side: the dashboard and account APIs accept a JWT session, and castomapi-auth issues those through a standard OAuth2 handshake, with authorization code, client credentials and refresh grants. The auth service page covers it.
What are the limits?
10 requests a minute per IP with no key at all, 60 a minute on the free tier, 300 on Pro, 1200 on Enterprise. Above the no-key tier the quota is per account, across every endpoint.
OpenAPI: https://app.castomapi.com/docs/json