Alpha Vantage · Markets

Alpha Vantage / US treasury yield

Daily, weekly or monthly US treasury yield for one maturity. Source data from US government agencies via Alpha Vantage. Runs on your own Alpha Vantage key (free key: 25 requests a day; premium plans lift the limit). Some functions are premium-only: a free key gets an Information message back, which looot reports as a failed run at $0. Alpha Vantage's free licence is personal and non-commercial; business use needs your own Alpha Vantage commercial plan.

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Published API evidence

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Request parameters

function query · optional
Fixed to "TREASURY_YIELD" for this route.
interval query · optional
Default monthly.
maturity query · optional
Default 10year.

No allowlisted official documentation or pricing reference is available.