---
title: "GetUsTreasuryParYieldCurve"
method: GET
path: "/api/economic/v1/get-us-treasury-par-yield-curve"
tags: ["EconomicService"]
---

# GetUsTreasuryParYieldCurve

`GET /api/economic/v1/get-us-treasury-par-yield-curve`

## Request

- Base URL: `https://api.worldmonitor.app`
- URL: `https://api.worldmonitor.app/api/economic/v1/get-us-treasury-par-yield-curve`
- Auth: one of:
  - API key in header `X-WorldMonitor-Key`
  - API key in header `X-Api-Key`

GetUsTreasuryParYieldCurve returns the daily Treasury par yield curve, 1-month through 30-year. A missing tenor was not published that day. history=false is the latest business day. history=true is every business day since 1990.

## Query parameters

- `history` boolean
- `limit` integer
- `jmespath` string

## Response `200`

OK

- WorldmonitorEconomicV1GetUsTreasuryParYieldCurveResponse: GetUsTreasuryParYieldCurveResponse is the par curve for the requested window.
  - `curves` WorldmonitorEconomicV1UsTreasuryParYieldCurve[]
    - `date` integer: Warning: Values > 2^53 may lose precision in JavaScript
    - `oneMonth` number, double: 1-month par yield, in percent.
    - `oneAndAHalfMonth` number, double: 1.5-month par yield, in percent.
    - `twoMonth` number, double: 2-month par yield, in percent.
    - `threeMonth` number, double: 3-month par yield, in percent.
    - `fourMonth` number, double: 4-month par yield, in percent.
    - `sixMonth` number, double: 6-month par yield, in percent.
    - `oneYear` number, double: 1-year par yield, in percent.
    - `twoYear` number, double: 2-year par yield, in percent.
    - `threeYear` number, double: 3-year par yield, in percent.
    - `fiveYear` number, double: 5-year par yield, in percent.
    - `sevenYear` number, double: 7-year par yield, in percent.
    - `tenYear` number, double: 10-year par yield, in percent.
    - `twentyYear` number, double: 20-year par yield, in percent.
    - `thirtyYear` number, double: 30-year par yield, in percent.
  - `unavailable` boolean: True when the seeded curve is unavailable. An empty list is not a zero yield.

## Other responses

- `400`: Validation error
- `401`: Missing or invalid API key.
- `403`: API access requires an active subscription (the API key's subscription is inactive or expired).
- `429`: Rate limit exceeded.
- `503`: Service unavailable. Billing-verification responses include code and X-Billing-Verification; other gateway infrastructure failures use the generic GatewayError shape.
- `default`: Gateway or handler error response.

---

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