{
  "x402Version": 2,
  "id": 14618,
  "slug": "14618",
  "resource": "https://x402stock.vercel.app/api/v1/treasury-yields",
  "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 context, and yield-curve inversion in macro-aware analysis. From x402stock",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "limit": 1
          },
          "type": "http"
        },
        "output": {
          "example": {
            "as_of": "2026-05-29T00:00:00.000Z",
            "count": 1,
            "maturities": [
              "1mo",
              "1.5mo",
              "2mo",
              "3mo",
              "4mo",
              "6mo",
              "1yr",
              "2yr",
              "3yr",
              "5yr",
              "7yr",
              "10yr",
              "20yr",
              "30yr"
            ],
            "rates": [
              {
                "date": "2026-05-29",
                "rates": {
                  "1.5mo": 3.71,
                  "10yr": 4.19,
                  "1mo": 3.72,
                  "1yr": 3.47,
                  "20yr": 4.81,
                  "2mo": 3.66,
                  "2yr": 3.47,
                  "30yr": 4.86,
                  "3mo": 3.65,
                  "3yr": 3.55,
                  "4mo": 3.62,
                  "5yr": 3.74,
                  "6mo": 3.58,
                  "7yr": 3.95
                }
              }
            ],
            "series": "daily_treasury_par_yield_curve",
            "source": "us_treasury",
            "unit": "percent"
          },
          "type": "json"
        }
      },
      "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"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "x402stock.vercel.app",
  "lastUpdated": "2026-09-12T17:14:45.683Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-09-12T17:14:45.399Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "x402stock.vercel.app",
    "manifest_name": "x402stock.vercel.app",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}