A
licenseNot graded
qualityC
maintenanceLets AI assistants pull the U.S. Treasury's own daily rate data with no API key, covering the full par yield curve back to 1990, 10y-2y and 10y-3m spreads with inversion flags, historical yield ranges, T-bill discount and coupon-equivalent rates, and TIPS real yields with breakeven inflation. Requests for weekends or holidays resolve to the prior business day, and every answer returns structured JSON plus a plain-text summary stamped with its as-of date and source.
MIT