# Renewal routes: open

URL: /code/api/renewal/verbs · Id: `page:code/api/renewal/verbs`

> The Renewal Verbs open as api.sb routes, with inputs, result, refusals and an example.

Reference for [Renewal](/business/nouns/renewal), one group of [Renewal routes](/code/api/renewal).

### Renewal.open
Open starts the Renewal for a term Subscription before its term ends, with a usage review and any notice the legal floor requires. [Verb page](/business/nouns/renewal/open?interface=api).

```text
POST /{namespace}/renewals/open
```

Body, as JSON: the inputs. Emits [`Renewal.opened`](/business/events/Renewal.opened).

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `subscription` | [Subscription](/business/nouns/subscription) | Yes | The Subscription whose term is ending. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `renewal` | [Renewal](/business/nouns/renewal) | Yes | The open Renewal. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```bash
curl -X POST https://api.sb/leaseline.app/renewals/open \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"subscription":"sub_whVFaHKWIV"}'
```

```json
{
  "api": "https://api.sb/leaseline.app",
  "renewal": {
    "$id": "https://api.sb/leaseline.app/renewals/renewal_NrJC9bDcII",
    "$type": "Renewal",
    "status": "Open",
    "termEndsAt": "2026-10-22T12:00:00Z",
    "openedAt": "2026-10-22T12:00:00Z"
  },
  "action": {
    "$id": "https://api.sb/leaseline.app/actions/act_br07HsG8MG",
    "operation": "Renewal.open",
    "status": "done"
  },
  "links": {
    "self": "https://api.sb/leaseline.app/actions/act_br07HsG8MG"
  }
}
```