# Run flows

URL: https://docs.hanzo.ai/docs/openapi/auto/post-auto-flows-by-id-run

> Starts one durable run of a flow now.

`POST /v1/auto/flows/{id}/run`

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|               |                                               |
| ------------- | --------------------------------------------- |
| **Address**   | `https://api.hanzo.ai/v1/auto/flows/{id}/run` |
| **Method**    | `POST`                                        |
| **Operation** | `post_auto_flows_by_id_run`                   |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`        |

Starts one durable run of a flow now. It runs the flow's published
version if one is pinned, else its latest, and answers the run record it created.
The run is bounded by the org's per-minute run-start budget and its in-flight
concurrency ceiling; over either, or with the engine not ready, no run is started
and no run id is burned.

## Request

1 field.

| Field | In   | Type   | Required | Description                              |
| ----- | ---- | ------ | -------- | ---------------------------------------- |
| `id`  | path | string | yes      | ID is the flow to act on, from the path. |

## Response

| Status    | Body            | Meaning |
| --------- | --------------- | ------- |
| `201`     | auto.FlowRun    | created |
| `default` | problem-details | refused |

`201` body — 8 fields.

| Field           | In   | Type            | Always | Description |
| --------------- | ---- | --------------- | ------ | ----------- |
| `created`       | body | integer (int64) | —      |             |
| `finishTime`    | body | integer (int64) | —      |             |
| `flowId`        | body | string          | —      |             |
| `flowVersionId` | body | string          | —      |             |
| `id`            | body | string          | —      |             |
| `startTime`     | body | integer (int64) | —      |             |
| `status`        | body | string          | —      |             |
| `updated`       | body | integer (int64) | —      |             |

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

## Examples

**CLI**

```bash
hanzo auto flows run <id>
```

**SDK**

**.ts**

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

const api = new AutoApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postAutoFlowsByIdRun({ id: 'id' });
```

**.py**

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = AutoApi(client).post_auto_flows_by_id_run(id='id')
```

**.go**

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

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

**.rs**

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

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

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

**.java**

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

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

var result = new AutoApi(client).postAutoFlowsByIdRun();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/auto/flows/<id>/run \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **auto** through the `auto` tool, which names its 14 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_auto_flows"
         }
       }
     }'
```

---

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