> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/guardian/standard-registry/schemas/schema-creation-using-apis/export-a-schema.md).

# Export message IDs of Schema

**`GET /schemas/{schemaId}/export/message`**

Returns Hedera message IDs of the published schemas. These messages contain IPFS CIDs of the schema files. Only users with the Standard Registry role are allowed to make the request.

**Authentication:** Bearer token required (`Authorization: Bearer <token>`)

**Permission:** `Permissions.SCHEMAS_SCHEMA_READ`

***

## Request

### Path Parameters

| Parameter  | Type   | Required | Description        |
| ---------- | ------ | -------- | ------------------ |
| `schemaId` | String | Yes      | Selected schema ID |

***

## Response

### Success Response

**Status:** `200 OK`

```json
{
  "id": "f3b2a9c1e4d5678901234567",
  "messageId": "1700000000.000000001",
  "cid": "QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco"
}
```

### Error Responses

| Status                      | Description               |
| --------------------------- | ------------------------- |
| `401 Unauthorized`          | Missing or invalid token  |
| `403 Forbidden`             | Insufficient permissions  |
| `500 Internal Server Error` | Unexpected server failure |