# List channels

URL: https://docs.hanzo.ai/docs/openapi/o11y/listchannels

> Lists the org's notification channels.

`GET /v1/o11y/channels`

> [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/channels` |
| **Method**    | `GET`                                   |
| **Operation** | `ListChannels`                          |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`  |

Lists the org's notification channels. Viewer gate.

## Request

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

## Response

| Status    | Body                 | Meaning           |
| --------- | -------------------- | ----------------- |
| `200`     | o11y.O11yChannelsOut | ok                |
| `202`     | Approval             | held for approval |
| `default` | problem-details      | refused           |

`200` body — 9 fields.

| Field              | In   | Type               | Always | Description              |
| ------------------ | ---- | ------------------ | ------ | ------------------------ |
| `data`             | body | o11y.Channel\[]    | —      | Data holds the channels. |
| `data[].createdAt` | body | string (date-time) | —      |                          |
| `data[].data`      | body | string             | —      |                          |
| `data[].id`        | body | any                | —      |                          |
| `data[].name`      | body | string             | —      |                          |
| `data[].orgId`     | body | string             | —      |                          |
| `data[].type`      | body | string             | —      |                          |
| `data[].updatedAt` | body | string (date-time) | —      |                          |
| `status`           | body | string             | —      | Status is "success".     |

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

## Examples

**CLI**

```bash
hanzo o11y channels 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.listChannels();
```

**.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).list_channels()
```

**.go**

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

resp, _, err := client.O11yAPI.ListChannels(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::list_channels(&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).listChannels();
```

**HTTP**

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

**MCP**

Tool `o11y`, op `ListChannels` — POST the JSON-RPC envelope to `https://api.hanzo.ai/v1/mcp`.

```bash
curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "o11y",
         "arguments": {
           "op": "ListChannels",
           "input": {}
         }
       }
     }'
```

---

[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)