> 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/policies/formula-linked-definitions/apis-related-to-formula-linked/retrieve-the-list-of-all-schemas-and-policies-linked-to-a-formula.md).

# Retrieve the list of all schemas and policies linked to a Formula

**`GET /api/v1/formulas/{formulaId}/relationships`**

Retrieves the relationship graph for a formula, including all linked policies and schemas.

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

**Permission:** `Permissions.FORMULAS_FORMULA_CREATE`

***

## Request

### Path Parameters

| Parameter   | Type   | Required | Description                |
| ----------- | ------ | -------- | -------------------------- |
| `formulaId` | string | Yes      | Database ID of the formula |

***

## Response

### Success Response

**Status:** `200 OK`

```json
{
  "id": "63e3e5e8a01b3c001234abcd",
  "uuid": "c4a3b2d1-e5f6-7890-abcd-ef1234567890",
  "policies": [
    {
      "id": "63e3e5e8a01b3c001234abce",
      "name": "Carbon Offset Policy",
      "version": "1.0.0"
    }
  ],
  "schemas": [
    {
      "id": "63e3e5e8a01b3c001234abcf",
      "name": "Emission Reduction Schema"
    }
  ]
}
```

| Field      | Type   | Description                                  |
| ---------- | ------ | -------------------------------------------- |
| `id`       | string | Formula database ID                          |
| `uuid`     | string | Formula UUID                                 |
| `policies` | array  | List of policies that reference this formula |
| `schemas`  | array  | List of schemas that reference this formula  |

### Error Responses

| Status                      | Description                               |
| --------------------------- | ----------------------------------------- |
| `401 Unauthorized`          | Missing or invalid token                  |
| `403 Forbidden`             | Insufficient permissions                  |
| `422 Unprocessable Entity`  | `formulaId` parameter is missing or empty |
| `500 Internal Server Error` | Unexpected server failure                 |