# Resume runs

URL: https://docs.hanzo.ai/docs/openapi/auto/post-auto-runs-by-id-resume

> Delivers the durable `resume` signal to a run parked on a `wait_for_approval` waitpoint and answers `{resumed:true}` once the engine has taken it.

`POST /v1/auto/runs/{id}/resume`

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

Delivers the durable `resume` signal to a run parked on a `wait_for_approval` waitpoint and answers `{resumed:true}` once the engine has taken it.

The body is an ARBITRARY JSON value — object, array, string, number — delivered VERBATIM into the workflow as that waitpoint's output, so it is what the steps after the approval read as their input. An empty body resumes with no payload. That open shape is why this route is not a typed op: an operation's input can carry the payload or the run address, never both.

Org-scoped and fails closed: a validated principal is required (401 without one), the run is read under the caller's OWN org so another tenant's run id is a 404, a body that is not JSON is a 400, and a payload over the size limit is a 413 — it becomes durable engine state, so it is bounded here rather than after it lands. The resume is audited as `automations.run.resume`.

## Request

1 field.

| Field | In   | Type   | Required | Description |
| ----- | ---- | ------ | -------- | ----------- |
| `id`  | 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 auto runs resume <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.postAutoRunsByIdResume({ 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_runs_by_id_resume(id='id')
```

**.go**

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

resp, _, err := client.AutoAPI.PostAutoRunsByIdResume(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_runs_by_id_resume(&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).postAutoRunsByIdResume();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/auto/runs/<id>/resume \
  -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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