# Update models

URL: https://docs.hanzo.ai/docs/openapi/ml/patch-ml-models-by-name

> Applies a JSON merge patch to one of the caller org's deployed models and answers the updated resource — the way to change a model's image, replica count or resource requests without tearing the deployment down.

`PATCH /v1/ml/models/{name}`

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

|               |                                            |
| ------------- | ------------------------------------------ |
| **Address**   | `https://api.hanzo.ai/v1/ml/models/{name}` |
| **Method**    | `PATCH`                                    |
| **Operation** | `patch_ml_models_by_name`                  |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`     |

Applies a JSON merge patch to one of the caller org's deployed models and answers the updated resource — the way to change a model's image, replica count or resource requests without tearing the deployment down.

The body is relayed to Kubernetes VERBATIM. That is deliberate and it is why this route is not a typed op: re-encoding a merge patch changes what it means, because an integer that round-trips through a generic decoder comes back a float. Merge-patch semantics apply as written — a null removes a field, and a list is replaced whole rather than merged.

Scoped to the caller's own tenant namespace, resolved from the validated org and project; a name the caller's tenant does not hold is a 404, never another tenant's resource. An empty body is refused, and a patch Kubernetes rejects comes back 422 with its reason rather than being silently dropped.

## Request

1 field.

| Field  | In   | Type   | Required | Description |
| ------ | ---- | ------ | -------- | ----------- |
| `name` | path | string | yes      |             |

## Response

The document declares no response body for this operation. It answers `200` on success and the platform error shape on failure — see [Errors](https://docs.hanzo.ai/docs/errors).

## Examples

**CLI**

```bash
hanzo ml models update <name>
```

**SDK**

**.ts**

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

const api = new MlApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.patchMlModelsByName({ name: 'name' });
```

**.py**

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = MlApi(client).patch_ml_models_by_name(name='name')
```

**.go**

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

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

**.rs**

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

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

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

**.java**

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

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

var result = new MlApi(client).patchMlModelsByName();
```

**HTTP**

```bash
curl -X PATCH https://api.hanzo.ai/v1/ml/models/<name> \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **ml** through the `ml` tool, which names its 4 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_ml_models"
         }
       }
     }'
```

---

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