# GET /v1/durable/health - Get system health
Source:
GET
/v1/durable/health
Select code samplecURL (shell:curl)
```js
const url = 'https://app.everruns.com/api/v1/durable/health';
const options = {method: 'GET'};
try {
const response = await fetch(url, options);
const data = await response.json();
console.log(data);
} catch (error) {
console.error(error);
}
```
```sh
curl --request GET \
--url https://app.everruns.com/api/v1/durable/health
```
* Production APIapp.everruns.com/api/v1/durable/health
## Responses
### 200
System health
Media typeapplication/json
System health response
object
**active\_workers**
required
Number of workers in the `running` state, ready to claim tasks.
integer
**claimed\_tasks**
required
Tasks currently claimed by a worker (gauge).
integer
**completed\_tasks**
required
Cumulative count of tasks that completed successfully (monotonic counter).
integer
**completed\_workflows**
required
Cumulative count of workflows that completed successfully (monotonic counter).
integer
**current\_load**
required
Total tasks currently in flight across all workers.
integer
**dlq\_size**
required
Size of the dead-letter queue (gauge). High values indicate stuck activities.
integer
**event\_delivery**
Event-delivery backend in use: `nats` for distributed deployments, `in_memory` for single-instance. `None` if the field was omitted by an older server.
string | null
**failed\_tasks**
required
Cumulative count of tasks that failed terminally or were sent to the DLQ (monotonic counter).
integer
**failed\_workflows**
required
Cumulative count of workflows that ended in failure (monotonic counter).
integer
**load\_percentage**
required
`current_load / total_capacity * 100`. 0.0 when no workers are registered.
number format: double
**pending\_tasks**
required
Tasks waiting to be claimed (gauge).
integer
**pending\_workflows**
required
Workflows waiting to be claimed (gauge).
integer
**running\_workflows**
required
Workflows currently executing (gauge).
integer
**started\_tasks**
required
Cumulative count of tasks claimed at least once (monotonic counter).
integer
**started\_workflows**
required
Cumulative count of workflows that started (monotonic counter).
integer
**status**
required
Aggregate system status: `healthy`, `degraded`, or `unhealthy`. Derived from worker availability, load, and queue depths.
string
**total\_capacity**
required
Sum of `max_concurrency` across all workers (the upper bound on concurrent task execution).
integer
**total\_workers**
required
Total number of workers registered (heartbeating in the last window).
integer
**workers\_accepting**
required
Number of workers currently accepting new task assignments (subset of `active_workers`; drains/backpressure excluded).
integer
##### Example
```json
{
"active_workers": 4,
"claimed_tasks": 7,
"completed_tasks": 12041,
"completed_workflows": 4128,
"current_load": 7,
"dlq_size": 0,
"event_delivery": "nats",
"failed_tasks": 34,
"failed_workflows": 12,
"load_percentage": 21.875,
"pending_tasks": 2,
"pending_workflows": 1,
"running_workflows": 3,
"started_tasks": 12082,
"started_workflows": 4144,
"status": "healthy",
"total_capacity": 32,
"total_workers": 4,
"workers_accepting": 4
}
```
### 500
Internal server error
Media typeapplication/json
Standard error response.
Wire shape is [RFC 9457 Problem Details](https://www.rfc-editor.org/rfc/rfc9457): every error response includes `title` and `status`, and may include `detail`, `code`, `allowed_actions`, `retry_after_seconds`, `instance`, and `type`. The content type is rewritten to `application/problem+json` with the `application/problem+json` content type.
object
**allowed\_actions**
Recovery actions the caller can take next.
Array\