# Fund Asset Class Breakdown

> Returns asset-class allocation percentages based on holdings, including recursive look-through of underlying funds and ETFs.

`GET https://api.bavest.co/v2/funds/asset-class-breakdown/{isin}`

Group: Funds. Route id: `v2_funds_asset_class_breakdown`. Included in: Pro, Growth.

## Description

Returns asset-class allocation percentages based on holdings, including recursive look-through of underlying funds and ETFs. Preserves signed weights and reports missing or unclassified exposure as unknown.

## Authentication

Send your API key in the `x-api-key` header on every request. No key yet? Sign up at https://dashboard.bavest.co/sign-up (free trial). The examples read the key from the `BAVEST_API_KEY` environment variable.

## Parameters

| Name | In | Type | Required | Description |
|---|---|---|---|---|
| `isin` | path | string | yes | Fund ISIN code (e.g., `DE0009848119`) Example `DE0009848119`. |

## Response

200 Holdings-based allocation including explicit unknown weight. (`application/json`).

| Field | Type | Always present | Description |
|---|---|---|---|
| `data` | object | no |  |
| `data.assetClassBreakdown` | array of object | yes |  |
| `data.assetClassBreakdown[].assetClass` | string | yes | One of `equity`, `fixed_income`, `cash_money_market`, `commodities`, `crypto`, `other`, `unknown`. |
| `data.assetClassBreakdown[].percent` | number | yes |  |
| `meta` | ResponseMeta | no | Response envelope metadata. Always present on a 200: `time` is set by `core/response.py` on every successful response. Errors carry the same block, built by the same code, so a client parses one meta shape whether the call succeeded or failed. |
| `meta.time` | integer | no | Server-side processing time in milliseconds. Example: `17`. |
| `meta.parameters` | object | no | Echo of the request parameters the endpoint resolved. |

## Example request

```bash
curl 'https://api.bavest.co/v2/funds/asset-class-breakdown/DE0009848119' \
  -H "x-api-key: $BAVEST_API_KEY"
```

## Example response

```json
{
  "data": {
    "assetClassBreakdown": [
      {
        "assetClass": "equity",
        "percent": 80
      },
      {
        "assetClass": "fixed_income",
        "percent": 20
      }
    ]
  }
}
```

## Errors

| Status | Meaning |
|---|---|
| 400 | Invalid request parameters. Returned when required query parameters are missing, have invalid types, or violate constraints (e.g., providing both symbol and isin when they are mutually exclusive). |
| 401 | Missing or invalid API key. |
| 404 | Resource not found. |
| 429 | Rate limit exceeded. Retry after the `Retry-After` header interval. |
| 500 | An unexpected error occurred on the server. If the issue persists, contact support with the X-Request-Id header value. |
| 503 | Bavest cannot read its data store right now. The security may well have data; retry after the `Retry-After` header interval. |

- `403` from the gateway: the API key is invalid or switched off.
- `429` with message `Limit Exceeded`: the monthly quota of the key is used up. With `Too Many Requests`: the key is throttled, or this route is not in the key's plan. Wait for `Retry-After` when it is sent.

## Links

- HTML page: https://dashboard.bavest.co/docs/v2_funds_asset_class_breakdown
- OpenAPI: https://dashboard.bavest.co/openapi.json (YAML: https://dashboard.bavest.co/openapi.yaml)
- Authentication: https://dashboard.bavest.co/docs/authentication.md
- MCP server for AI agents: https://dashboard.bavest.co/docs/mcp.md
- All routes: https://dashboard.bavest.co/llms.txt