# US Treasury Yield Curve

The daily par yield curve — the risk-free rate from one month to thirty years, the benchmark every other rate is quoted against.

- Method: `GET`
- Path: `/v1/finance/yield-curve`

**Parameters**

| Name | Type | | Description |
|---|---|---|---|
| `month` | string | required | `YYYYMM` — one month of curves per call. |
| `limit` | integer | optional | Most recent N days, 1-31. |
| `max_age` | integer (seconds) | optional | Ask for data no older than this. Clamped to the product's own floor, so it can narrow the window but never force a refresh on every call. |

**Example request**

```bash
curl https://api.diraz.ae/v1/finance/yield-curve \
  -H "Authorization: Bearer drz_live_…"
```

**Example response**

```json
{
  "data": {
    "month": "202608",
    "points": [
      {
        "date": "2026-08-20",
        "yields": { "1M": 3.82, "3M": 3.91, "6M": 4.02, "1Y": 4.07, "2Y": 4.25, "5Y": 4.4, "10Y": 4.7, "30Y": 5.23 }
      }
    ]
  },
  "meta": {
    "request_id": "req_7Q2fK4mZ",
    "as_of": "2026-08-21T04:05:00.000Z",
    "age_seconds": 42,
    "next_update_at": "2026-08-22T04:05:00.000Z"
  }
}
```