## Get invoice

`GET /v1/invoices/:id`

Returns an invoice by ID. Supports including related entities via `include`.

## Request parameters

| Parameter | Type | Description |
|----------|-----|---------|
| `id` | number | Invoice ID (in the URL) |

## Examples

### curl — personal key

```bash
curl -X GET "https://vibecode.bitrix24.com/v1/invoices/891" \
  -H "X-Api-Key: YOUR_API_KEY"
```

### curl — OAuth application

```bash
curl -X GET "https://vibecode.bitrix24.com/v1/invoices/891" \
  -H "X-Api-Key: YOUR_APP_KEY" \
  -H "Authorization: Bearer USER_SESSION_TOKEN"
```

### JavaScript — personal key

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/invoices/891', {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' },
})

const { success, data } = await res.json()
console.log('Retrieved:', data.id)
```

### JavaScript — OAuth application

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/invoices/891', {
  headers: {
    'X-Api-Key': 'YOUR_APP_KEY',
    'Authorization': 'Bearer USER_SESSION_TOKEN',
  },
})

const { success, data } = await res.json()
```

More about includes: [Related data](/docs/includes).

## Response fields

| Field | Type | Description |
|------|-----|---------|
| `id` | number | Invoice ID |
| `title` | string | Title |
| `stageId` | string | Stage |
| `categoryId` | number | Pipeline ID |
| `contactId` | number | Contact ID |
| `companyId` | number | Company ID |
| `opportunity` | number | Amount |
| `currencyId` | string | Currency |
| `assignedById` | number | Assignee |
| `createdBy` | number | Creator |
| `createdTime` | datetime | Creation date |
| `updatedTime` | datetime | Modification date |
| `_included` | object | Related entities (with `include`) |

## Related data

 (include)

```
GET /v1/invoices/1?include=contact,company
```

Available includes: `contact`, `company`. Result in the `_included` field.

## Response example

```json
{
  "success": true,
  "data": {
    "id": 891,
    "title": "Invoice for services",
    "stageId": "DT31_5:N",
    "categoryId": 5,
    "contactId": 42,
    "companyId": 15,
    "opportunity": 150000,
    "currencyId": "USD",
    "assignedById": 1,
    "createdBy": 1,
    "createdTime": "2026-04-15T14:30:00+00:00",
    "updatedTime": "2026-04-15T14:30:00+00:00",
    "_included": {
      "contact": {
        "id": 42,
        "name": "John",
        "lastName": "Brown"
      },
      "company": {
        "id": 15,
        "title": "Acme LLC"
      }
    }
  }
}
```


## Error response example

404 — invoice not found:

```json
{
  "success": false,
  "error": {
    "code": "ENTITY_NOT_FOUND",
    "message": "Item not found"
  }
}
```

More about includes: [Related data](/docs/includes).

## Errors

| HTTP | Code | Description |
|------|-----|---------|
| 404 | `ENTITY_NOT_FOUND` | Invoice with the specified ID not found |
| 403 | `SCOPE_DENIED` | API key lacks the `crm` scope |
| 401 | `TOKEN_MISSING` | API key has no configured tokens |

Full list of common API errors — [Errors](/docs/errors).

## See also

- [Working with files in CRM fields](/docs/recipes/crm-files)
- [List invoices](/docs/entities/invoices/list) — retrieval with filters
- [Update invoice](/docs/entities/invoices/update) — modifying fields
- [Contacts](/docs/entities/contacts) — contact data via `include`
- [Companies](/docs/entities/companies) — company data via `include`
- [Entity API](/docs/entity-api) — general principles