Treasury Yield Spread
History of the spread between any two Treasury tenors, with an inversion flag.
GET
/api/v1/finance/yield-spreadData source
- Daily Treasury Par Yield CurveUS Department of the Treasury ·
public-domain· updates Daily (~18:00 ET)
Query parameters
| Parameter | Description | Try value |
|---|---|---|
shortstring | Short tenor, e.g. 2Y, 3M | |
longstring | Long tenor, e.g. 10Y | |
daysnumber | 1–250 (default 30) | |
apikeystring required | Your API key. Can also be sent as the X-API-Key header. | demo key used here |
Response envelope
Success: { data, meta: { sources, fetchedAt, cached } }. Errors: { error: { code, message } } with HTTP 400, 401, 404, 502, 503 or 504.