API reference

Cancel a task

Cancels queued, running, or awaiting-input work. Repeated requests are safe; completed and failed tasks remain unchanged.

POST/v1/tasks/{taskId}/cancel

Authorization

Send a personal API key or an OAuth access token as Authorization: Bearer <token>.

OAuth scopes: tasks:write

Parameters

taskIdstring (uuid), pathrequired

Responses

200The task's current state

taskobjectrequired
idstringrequired
titlestringrequired
status"idle" | "queued" | "running" | "awaiting_input" | "completed" | "cancelled" | "failed"required
executionMode"adam" | "external"
projectIdstring | nullrequired
modelobject | nullrequired
slugstring | nullrequired
fastbooleanrequired
effort"low" | "medium" | "high" | "xhigh" | "max" | nullrequired
pendingInteractionobject | nullrequired
idstringrequired
type"question" | "approval"required
promptstring | nullrequired
createdAtstringrequired
updatedAtstringrequired
messagesobject[]required
idstringrequired
role"user" | "assistant"required
partsobject[]required
createdAtstring (date-time)required

400Invalid request

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

401Missing or invalid Bearer credential

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

402Payment or subscription required

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

403Credential is missing a required scope

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

404Resource not found

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

409Request conflict

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

429Rate limit exceeded

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

500Internal API error

errorobjectrequired
typestringrequired
messagestringrequired
requestIdstring

curl --request POST \
  --url 'https://api.staging.adam.new/v1/tasks/{taskId}/cancel' \
  --header 'Authorization: Bearer <token>'

{
  "task": {
    "id": "<string>",
    "title": "<string>",
    "status": "idle",
    "executionMode": "adam",
    "projectId": "<string>",
    "model": {
      "slug": "<string>",
      "fast": true,
      "effort": "low"
    },
    "pendingInteraction": {
      "id": "<string>",
      "type": "question",
      "prompt": "<string>"
    },
    "createdAt": "<string>",
    "updatedAt": "<string>"
  },
  "messages": [
    {
      "id": "<string>",
      "role": "user",
      "parts": [
        {
          "type": "reasoning",
          "text": "<string>"
        }
      ],
      "createdAt": "2026-01-01T00:00:00.000Z"
    }
  ]
}