# List metrics

URL: https://docs.hanzo.ai/docs/openapi/function/get-function-metrics

> The org's serverless dashboard over a window: a per-function invocation costLine and how those invocations ended.

`GET /v1/function/metrics`

> [Function →](https://docs.hanzo.ai/docs/openapi/function) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides)

|               |                                            |
| ------------- | ------------------------------------------ |
| **Address**   | `https://api.hanzo.ai/v1/function/metrics` |
| **Method**    | `GET`                                      |
| **Operation** | `get_function_metrics`                     |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`     |

The org's serverless dashboard over a window: a per-function
invocation costLine and how those invocations ended.

Every point is a REAL count of rows that fell in that bucket — nothing is
interpolated or invented, so an empty window draws a flat line rather than a
fabricated one.

costCents is null and stays null: there is no per-invocation cost source to read,
and reporting a number computed some other way would be a guess presented as a
measurement. Requires a validated principal; the read is scoped to its org.

## Request

1 field.

| Field   | In    | Type   | Required | Description                                    |
| ------- | ----- | ------ | -------- | ---------------------------------------------- |
| `range` | query | string | —        | Range is 1H, 6H, 24H (the default), 7D or 30D. |

## Response

| Status    | Body            | Meaning |
| --------- | --------------- | ------- |
| `200`     | function.usage  | ok      |
| `default` | problem-details | refused |

`200` body — 10 fields.

| Field                 | In   | Type                     | Always | Description                                                        |
| --------------------- | ---- | ------------------------ | ------ | ------------------------------------------------------------------ |
| `costCents`           | body | integer (int64)          | —      | null — no per-invocation cost source                               |
| `series`              | body | function.costLine\[]     | —      | one line per function that ran in the window                       |
| `series[].key`        | body | string                   | —      | the function the line is about                                     |
| `series[].points`     | body | function.pointView\[]    | —      | one point per bucket, oldest first                                 |
| `series[].points[].t` | body | string                   | —      | the bucket's start, RFC3339 (UTC)                                  |
| `series[].points[].v` | body | integer (int64)          | —      | how many invocations fell in it — a real count, never interpolated |
| `status`              | body | function.statusBreakdown | —      |                                                                    |
| `status.error`        | body | integer (int64)          | —      | invocations that ran and failed                                    |
| `status.success`      | body | integer (int64)          | —      | invocations whose code ran and wrote nothing to stderr             |
| `status.timeout`      | body | integer (int64)          | —      | invocations that hit their configured deadline                     |

Failure carries the platform error shape — see [Errors](https://docs.hanzo.ai/docs/errors).

## Examples

**CLI**

```bash
hanzo function metrics
```

**SDK**

**.ts**

```ts
import { Configuration, FunctionApi } from 'hanzoai';

const api = new FunctionApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getFunctionMetrics();
```

**.py**

```python
from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import FunctionApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = FunctionApi(client).get_function_metrics()
```

**.go**

```go
cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.FunctionAPI.GetFunctionMetrics(context.Background()).Execute()
if err != nil {
	return err
}
```

**.rs**

```rust
use hanzo_client::apis::{configuration::Configuration, function_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = function_api::get_function_metrics(&cfg, Default::default()).await?;
```

**.java**

```java
import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.FunctionApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new FunctionApi(client).getFunctionMetrics();
```

**HTTP**

```bash
curl https://api.hanzo.ai/v1/function/metrics \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **function** through the `function` tool, which names its 10 operations with its own verbs — this one among them, under a name only MCP declares. `describe` explains any of them:

```bash
curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "describe",
         "arguments": {
           "op": "list_functions"
         }
       }
     }'
```

---

[Function API](https://docs.hanzo.ai/docs/openapi/function) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)