# Create a coupon

`POST /v1/admin/billing/coupons`

URL: https://docs.spacerun.co/docs/platform/reference/billing-coupons/createBillingCoupon

- **Operation ID:** `createBillingCoupon`
- **Tags:** Billing coupons
- **Base URL:** `http://localhost:8787`

Creates a Stripe coupon (percent or amount off). Audited; publishes a dashboard event. Stripe API errors are not mapped and surface as 500.

**Workflow:** [Integration guide](https://docs.spacerun.co/docs/platform/guides/billing-checkout).

**Authentication:** staff Bearer JWT with permission `billing.write`.

## Authentication

- **Auth:** staff Bearer JWT (`Authorization: Bearer <access_token>`) with the permissions below.
- **Required permissions:** `billing.write`

## Request body

Required: yes.

Content type: `application/json`

Schema: `object`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | yes | Min length: 1. Max length: 200 |
| `percentOff` | `number` | no | Min: 1. Max: 100 |
| `amountOff` | `integer` | no | Greater than: 0 |
| `currency` | `string` | no | Min length: 3. Max length: 3 |
| `duration` | `string` | no | One of: `"once"`, `"repeating"`, `"forever"`. Default: `"once"` |
| `durationInMonths` | `integer` | no | Greater than: 0 |
| `maxRedemptions` | `integer` | no | Greater than: 0 |

## Responses

### 201

Coupon created.

- Header `x-request-id`: Request identifier; quote it when reporting an error.
Content type: `application/json`

Schema: `object (BillingCoupon)`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | yes | - |
| `object` | `string` | yes | One of: `"coupon"` |
| `name` | `string \| null` | yes | - |
| `percent_off` | `number \| null` | yes | - |
| `amount_off` | `number \| null` | yes | - |
| `currency` | `string \| null` | yes | - |
| `duration` | `string` | yes | One of: `"once"`, `"repeating"`, `"forever"` |
| `duration_in_months` | `number \| null` | yes | - |
| `max_redemptions` | `number \| null` | yes | - |
| `times_redeemed` | `number` | yes | - |
| `valid` | `boolean` | yes | - |
| `created` | `number` | yes | Unix seconds. |
| `livemode` | `boolean` | yes | - |

## Errors

### 400

Request validation failed.

- Header `x-request-id`: Request identifier; quote it when reporting an error.
Content type: `application/json`

Schema: `object (ValidationErrorBody)`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `success` | `boolean` | yes | One of: `false` |
| `error` | `object` | yes | - |
| `error.name` | `string` | yes | One of: `"ZodError"` |
| `error.issues` | `object[]` | yes | - |
| `error.issues[].code` | `string` | yes | - |
| `error.issues[].path` | `(string \| number)[]` | yes | - |
| `error.issues[].message` | `string` | yes | - |

**Request validation**

```json
{
  "success": false,
  "error": {
    "name": "ZodError",
    "issues": [
      {
        "code": "custom",
        "path": [
          "field"
        ],
        "message": "Invalid value"
      }
    ]
  }
}
```

### 401

Missing, malformed, expired or wrong-audience Bearer token (`missing_token`, `invalid_token`, `invalid_audience`).

- Header `x-request-id`: Request identifier; quote it when reporting an error.
Content type: `application/json`

Schema: `object (ErrorBody)`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes | Stable machine-readable error code, e.g. `forbidden`, `not_found`. |
| `details` | `any` | no | Optional structured context. For 403 it is `{ perm }`. |

**Error response**

```json
{
  "error": "missing_token"
}
```

### 403

Authenticated but lacking the required permission. `details.perm` lists the accepted permission keys.

- Header `x-request-id`: Request identifier; quote it when reporting an error.
Content type: `application/json`

Schema: `object (ErrorBody)`, fields as described above.

**Error response**

```json
{
  "error": "forbidden",
  "details": {
    "perm": "billing.write"
  }
}
```

### 500

Unexpected server error (`internal`). No details are returned.

- Header `x-request-id`: Request identifier; quote it when reporting an error.
Content type: `application/json`

Schema: `object (ErrorBody)`, fields as described above.

**Error response**

```json
{
  "error": "internal"
}
```

## Examples

### curl

```bash
curl -X POST 'http://localhost:8787/v1/admin/billing/coupons' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -H 'Content-Type: application/json' \
  --data '{"name":"example","percentOff":1,"amountOff":1,"currency":"exa","duration":"once","durationInMonths":1,"maxRedemptions":1}'
```

### TypeScript

```ts
const accessToken = process.env.ACCESS_TOKEN; // user JWT from your sign-in flow

const response = await fetch("http://localhost:8787/v1/admin/billing/coupons", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${accessToken}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "name": "example",
    "percentOff": 1,
    "amountOff": 1,
    "currency": "exa",
    "duration": "once",
    "durationInMonths": 1,
    "maxRedemptions": 1
  }),
});
if (!response.ok) throw new Error(`HTTP ${response.status}: ${await response.text()}`);
const data = response.status === 204 || response.status === 205
  ? undefined
  : response.headers.get("content-type")?.includes("json")
    ? await response.json()
    : await response.text();
```