U.S. Treasury Average Interest Rates

Official daily and monthly average interest rates on U.S. Treasury securities (Treasury Bills, Notes, Bonds, TIPS, FRN) from the U.S. Department of the Treasury Fiscal Data program.

Institutional Source & Provenance

Curated by U.S. Department of the Treasury (Fiscal Data) (Economic).

Machine Query Protocol (Fodda MCP)

Query this dataset directly inside Claude, ChatGPT, Copilot, or custom agent workflows:

POST https://api.fodda.ai/v1/graphs/treasury_fiscal/search