# Create variant — POST /v1/commerce/variant/{variantid}

URL: https://docs.hanzo.ai/docs/openapi/commerce/post-commerce-variant-by-variantid

> A variant is one purchasable SKU of a product — its product id, SKU and UPC, name, media, availability, the option name and value pairs that distinguish it, a sold counter, and its own money and stock: currency, price, MSRP, inventory cost, inventory count and taxability.

`POST /v1/commerce/variant/{variantid}`

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

|               |                                                        |
| ------------- | ------------------------------------------------------ |
| **Address**   | `https://api.hanzo.ai/v1/commerce/variant/{variantid}` |
| **Method**    | `POST`                                                 |
| **Operation** | `post_commerce_variant_by_variantid`                   |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`                 |

A variant is one purchasable SKU of a product — its product id, SKU and UPC, name, media, availability, the option name and value pairs that distinguish it, a sold counter, and its own money and stock: currency, price, MSRP, inventory cost, inventory count and taxability. Inventory and sold are plain writable numbers with no decrement logic behind them here. The same variant also exists as a JSON copy inside its product, and writing one does not update the other. Re-dispatches the request into the handler the intended verb would have reached, taking that verb from a \_method form value or query parameter and then from the X-HTTP-Method-Override header. PUT replaces the row, PATCH changes part of it, DELETE removes it, and anything else is 405. The trap is the DEFAULT: naming no override at all leaves the method POST, which this tunnel maps to the PARTIAL UPDATE — it is never a create, and creating is the collection root's job. Behaviour and authorization are the underlying operation's, since the real handler runs. Any valid access token reaches it. The org must also be entitled to the commerce admin: the paywall answers 402 subscription\_required unless the org holds an active or trialing pro subscription, a live trial credit or a redeemed invite, and 503 when that entitlement cannot be read rather than admitting on an unknown. A platform superadmin passes straight through.

## Request

1 field.

| Field       | In   | Type   | Required | Description |
| ----------- | ---- | ------ | -------- | ----------- |
| `variantid` | 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**

`hanzo` has no subcommand for this operation — the CLI serves only what cloud's live route table confirms. Use HTTP or an SDK.

**SDK**

**.ts**

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

const api = new CommerceApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postCommerceVariantByVariantid({ variantid: 'variantid' });
```

**.py**

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = CommerceApi(client).post_commerce_variant_by_variantid(variantid='variantid')
```

**.go**

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

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

**.rs**

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

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

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

**.java**

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

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

var result = new CommerceApi(client).postCommerceVariantByVariantid();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/commerce/variant/<variantid> \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **commerce** through the `commerce` tool, which names its 5 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": "get_commerce_health"
         }
       }
     }'
```

---

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