# create

URL: /business/nouns/startup/create · Id: `verb:Startup.create` · Call: `await $.Startup.create({ … })` (SDK) or the `do` tool at `https://api.sb/mcp`. Inputs says what to pass, Outputs what returns, When it waits who approves.

> Creates a Startup.

Create makes a new [Startup](/business/nouns/startup) from the inputs below. It is inherited: every [Noun](/business/nouns/noun) has `get`, `list`, `create`, `update` and `delete`.

## Inputs
| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | Yes | The name the Startup trades under. |
| `domain` | `url` | No | The canonical hostname of the Startup. |
| `launchedAt` | `datetime` | No | When the Startup went live. |
| `template` | `string` | No | The slug of the template it extends; the root one when none is named. |
| `idea` | `text` | No | The Idea it starts from, in a sentence, recorded as its Idea. |
| `spendState` | `string` | No | How freely money Limits allow spend: `free`, `tight` (discretionary Limits halved) or `hold` (one-way spend stops). |
| `studio` | [Studio](/business/nouns/studio) | No | A Studio founds and builds its Startups and runs Plays across them. |
| `company` | [Company](/business/nouns/company) | No | The holding Company is the Startup’s owner of record: it signs its Agreements and owns its profit rights. |

## Outputs
| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `startup` | [Startup](/business/nouns/startup) | Yes | The Startup. |

## Effects
- Emits `Startup.created`.
- Two-way: `try`, `send`, `do`.

## 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. | [Startup.create](/business/nouns/startup/create) |

## When it waits
| Gate | Default |
| --- | --- |
| Decision class | Low: two-way, nothing at stake |
| [Delay window](/systems/trust-and-governance/controls/one-way-windows) | None: it runs once review passes. |
| Limit | The call [Limit](/business/nouns/limit) of the [Permission](/business/nouns/permission) it runs under. |
| Over the Limit | It waits `pending` for an [Approval](/business/nouns/approval) from the [Founder](/agents/founding/founder). Approved, it runs; refused, it ends `refused` with [`limit-exceeded`](/code/api/errors/limit-exceeded); unanswered by its deadline, it ends `canceled`. |

## Example

**Ask**

```text
Add a startup to PatentPad.
```

**API**

```bash
curl -X POST https://api.sb/patentpad.com/startups \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"PatentPad"}'
```

```json
{
  "api": "https://api.sb/patentpad.com",
  "startup": {
    "$id": "https://api.sb/patentpad.com/startups/startup_1",
    "$type": "Startup",
    "name": "PatentPad"
  },
  "action": {
    "$id": "https://api.sb/patentpad.com/actions/action_1",
    "operation": "Startup.create",
    "status": "done"
  },
  "links": {
    "self": "https://api.sb/patentpad.com/actions/action_1"
  }
}
```

**SDK**

```ts
import { $ } from 'startup-builder'

const startup = await $.Startup.create({ name: 'PatentPad' })
```

**CLI**

```bash
npx startup-builder do Startup.create --json '{"name":"PatentPad"}'
```

**MCP**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Startup.create({ name: 'PatentPad' })"
  }
}
```

Next: [`Startup.build`](/business/nouns/startup/build) (in `guide:start-a-business`).

Guides that call it: [Start a business](/business/start-a-business).