{"slug":"x402stock-vercel-app-api-v1-treasury-yields-e66a12","title":"The daily US Treasury par yield curve (Constant Maturity Treasury rates) for eve","host":"x402stock.vercel.app","method":"GET","resource":"https://x402stock.vercel.app/api/v1/treasury-yields","category":"other","description":"The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity conte","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":322,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"limit":1},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"limit":{"default":1,"exclusiveMinimum":0,"maximum":250,"type":"integer"},"year":{"maximum":2100,"minimum":1990,"type":"integer"}},"required":["limit"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"as_of":{"anyOf":[{"type":"string"},{"type":"null"}]},"count":{"type":"number"},"maturities":{"items":{"type":"string"},"type":"array"},"rates":{"items":{"additionalProperties":false,"properties":{"date":{"type":"string"},"rates":{"additionalProperties":{"anyOf":[{"type":"number"},{"type":"null"}]},"propertyNames":{"type":"string"},"type":"object"}},"required":["date","rates"],"type":"object"},"type":"array"},"series":{"type":"string"},"source":{"const":"us_treasury","type":"string"},"unit":{"type":"string"}},"required":["source","as_of","series","unit","maturities","count","rates"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":322,"error":null}],"description_full":"The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock","last_updated":"2026-09-12T17:14:45.683Z","schemes":["exact"]}