# List services — GET /v1/o11y/services/list

URL: https://docs.hanzo.ai/docs/openapi/o11y/get-o11y-services-list

> Lists the name of every service the trace store holds, with no window applied — the complete catalog, for pickers and autocomplete.

`GET /v1/o11y/services/list`

> [O11y →](https://docs.hanzo.ai/docs/openapi/o11y) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides)

|               |                                              |
| ------------- | -------------------------------------------- |
| **Address**   | `https://api.hanzo.ai/v1/o11y/services/list` |
| **Method**    | `GET`                                        |
| **Operation** | `get_o11y_services_list`                     |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`       |

Lists the name of every service the trace store holds, with no
window applied — the complete catalog, for pickers and autocomplete.

## Request

`GET /v1/o11y/services/list` takes no parameters and no body — the credential is the whole request.

## Response

| Status    | Body            | Meaning           |
| --------- | --------------- | ----------------- |
| `200`     | string\[]       | ok                |
| `202`     | Approval        | held for approval |
| `default` | problem-details | refused           |

`200` body — 1 field.

| Field    | In   | Type      | Always | Description |
| -------- | ---- | --------- | ------ | ----------- |
| `(body)` | body | string\[] | yes    |             |

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

## Examples

**CLI**

```bash
hanzo o11y services list
```

**SDK**

**.ts**

```ts
import { Configuration, O11yApi } from 'hanzoai';

const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getO11yServicesList();
```

**.py**

```python
from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import O11yApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = O11yApi(client).get_o11y_services_list()
```

**.go**

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

resp, _, err := client.O11yAPI.GetO11yServicesList(context.Background()).Execute()
if err != nil {
	return err
}
```

**.rs**

```rust
use hanzo_client::apis::{configuration::Configuration, o11y_api};

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

let result = o11y_api::get_o11y_services_list(&cfg, Default::default()).await?;
```

**.java**

```java
import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.O11yApi;

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

var result = new O11yApi(client).getO11yServicesList();
```

**HTTP**

```bash
curl https://api.hanzo.ai/v1/o11y/services/list \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **o11y** through the `o11y` tool, which names its 307 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_o11y_autocomplete_aggregate_attributes"
         }
       }
     }'
```

---

[O11y API](https://docs.hanzo.ai/docs/openapi/o11y) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)