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GET
/
v2
/
tasks
/
{task_id}
Get task
curl --request GET \
  --url https://api.arize.com/v2/tasks/{task_id} \
  --header 'Authorization: Bearer <token>'
{
  "id": "T25saW5lVGFzazo0NTpxUndY",
  "name": "Production Hallucination Check",
  "type": "template_evaluation",
  "project_id": "TW9kZWw6MTIzOmFCY0Q=",
  "dataset_id": null,
  "sampling_rate": 1,
  "is_continuous": true,
  "query_filter": null,
  "evaluators": [
    {
      "evaluator_id": "RXZhbHVhdG9yOjEyOmFCY0Q=",
      "evaluator_name": "Hallucination Eval",
      "query_filter": null,
      "column_mappings": {
        "input": "attributes.input.value",
        "output": "attributes.output.value"
      }
    }
  ],
  "experiment_ids": [],
  "last_run_at": "2026-03-01T14:30:00.000Z",
  "created_at": "2026-02-20T10:00:00.000Z",
  "updated_at": "2026-02-20T10:00:00.500Z",
  "created_by_user_id": "VXNlcjoxOm5OYkM="
}

Authorizations

​
Authorization
string
header
required

Most Arize AI endpoints require authentication. For those endpoints that require authentication, include your API key in the request header using the format

Path Parameters

​
task_id
string
required

The unique task identifier (base64) A universally unique identifier (base64-encoded opaque string).

Example:

"RW50aXR5OjEyMzQ1"

Response

Returns a single task object

A task is a typed, configurable unit of work that ties one or more evaluators to a data source (project or dataset). run_experiment tasks additionally carry a run_configuration that defines the LLM or evaluator settings for each triggered run.

​
id
string
required

The unique identifier for the task

​
name
string
required

The name of the task

​
type
enum<string>
required

The task type.

  • template_evaluation - An LLM template-based evaluation task.
  • code_evaluation - A code-based evaluation task.
  • run_experiment - A task that runs experiments.
Available options:
template_evaluation,
code_evaluation,
run_experiment
​
is_continuous
boolean
required

Whether the task runs continuously on incoming data.

​
query_filter
string | null
required

Task-level query filter applied to all data.

​
evaluators
object[]
required

The evaluators attached to this task. Empty for run_experiment tasks.

​
experiment_ids
string[]
required

Experiment identifiers (base64) for dataset-based tasks.

​
last_run_at
string<date-time> | null
required

When the task was last run.

​
created_at
string<date-time>
required

When the task was created.

​
updated_at
string<date-time>
required

When the task was last updated.

​
created_by_user_id
string | null
required

The unique identifier for the user who created the task.

​
project_id
string | null

The project identifier (base64). Present for project-based tasks.

​
dataset_id
string | null

The dataset identifier (base64). Present for dataset-based tasks.

​
sampling_rate
number | null

Sampling rate between 0 and 1. Only applicable for project-based tasks.

Required range: 0 <= x <= 1
​
run_configuration
object

The run configuration for a run_experiment task. Present only when type is run_experiment. Null for all other task types.