# Create generations — POST /v1/images/generations

URL: https://docs.hanzo.ai/docs/openapi/ai/post-images-generations

> Implements POST /v1/images/generations (OpenAI-compatible).

`POST /v1/images/generations`

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|               |                                              |
| ------------- | -------------------------------------------- |
| **Address**   | `https://api.hanzo.ai/v1/images/generations` |
| **Method**    | `POST`                                       |
| **Operation** | `post_images_generations`                    |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`       |

Implements POST /v1/images/generations (OpenAI-compatible).

Body: {"model": "...", "prompt": "...", "n"?: int, "size"?: "1024x1024",

"response\_format"?: "url"|"b64\_json"}

It authenticates the caller, resolves the model to its upstream provider via
the shared routing table (zen3-image\* → do-ai fal diffusion), reserves the
per-image budget, generates the image(s) through the do-ai async image
client, records usage for billing, and returns the OpenAI images response.

## Request

The document declares no body for `POST /v1/images/generations`. The handler is typed in cloud but its shape is not yet emitted, so the fields are not listed here — ask MCP's `describe` for `post_images_generations`, which answers from the running route.

## Response

| Status | Body                 | Meaning                                             |
| ------ | -------------------- | --------------------------------------------------- |
| `200`  | openai.ImageResponse | Success.                                            |
| `401`  | —                    | No credential, or one this service does not accept. |
| `403`  | —                    | A valid credential that may not do this.            |

`200` body — 5 fields.

| Field                   | In   | Type                             | Always | Description |
| ----------------------- | ---- | -------------------------------- | ------ | ----------- |
| `created`               | body | integer                          | —      |             |
| `data`                  | body | openai.ImageResponseDataInner\[] | —      |             |
| `data[].b64_json`       | body | string                           | —      |             |
| `data[].revised_prompt` | body | string                           | —      |             |
| `data[].url`            | body | string                           | —      |             |

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

## Examples

**CLI**

```bash
hanzo images generations
```

**SDK**

**.ts**

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

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

**.py**

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

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

**.go**

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

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

**.rs**

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

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

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

**.java**

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

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

var result = new AiApi(client).postImagesGenerations();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/images/generations \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP declares no tool for **ai** — `tools/list` on `https://api.hanzo.ai/v1/mcp` names the products it does reach. Use HTTP or an SDK.

---

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