Api Endpoint

StationFX

Benchmark long-term U.S. government borrowing rate. Anchors mortgage rates, corporate bond yields, and equity discount rates. Widely used as the risk-free rate in financial models. Critical for duration risk, equity valuation, and global capital flow analysis. Daily frequency, 60+ year history.

Open interactive test console

Offering

Provider
stationfx.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Financial Analysis
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://stationfx.com/economic-data/interest-rates/market-yield-on-u-s-treasury-securities-at-10-year-constant-maturity-quoted-on-an-investment-basis
MIME type
application/json
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
economic-data, time-series, fred, X402, USDC

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x22f7e9518dff04a5db1fddaabc0e001b8c425b3a"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "5000",
    "payTo": "3snkxosXCo6x5AEBRvnRG6wzJsvBaPpNd68Q2jJ4CVzW"
  }
]

Observed health

Status
Healthy
Latest latency
101 ms
Average latency
463 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http",
      "description": "Always \"http\" for HTTP endpoints"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ],
      "description": "HTTP method. Always GET for StationFX query endpoints"
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "date_from": {
          "type": "string",
          "description": "Start date YYYY-MM-DD"
        },
        "date_to": {
          "type": "string",
          "description": "End date YYYY-MM-DD"
        },
        "fmt": {
          "type": "string",
          "enum": [
            "json",
            "toon"
          ],
          "description": "Response format. Use toon for compact agent-friendly output."
        },
        "fields": {
          "type": "string",
          "description": "Comma-separated metric names"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "description": "HTTP method. Always GET for StationFX query endpoints",
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "date_from": {
              "description": "Start date YYYY-MM-DD",
              "type": "string"
            },
            "date_to": {
              "description": "End date YYYY-MM-DD",
              "type": "string"
            },
            "fields": {
              "description": "Comma-separated metric names",
              "type": "string"
            },
            "fmt": {
              "description": "Response format. Use toon for compact agent-friendly output.",
              "enum": [
                "json",
                "toon"
              ],
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "description": "Always \"http\" for HTTP endpoints",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "description": "Station f(x) response with metadata and pre-computed derived metrics",
          "properties": {
            "data": {
              "description": "Observations ordered by date ascending",
              "items": {
                "properties": {
                  "above_trend": {
                    "description": "True if the value is above its 12-period rolling average",
                    "type": "boolean"
                  },
                  "date": {
                    "description": "Observation date YYYY-MM-DD",
                    "type": "string"
                  },
                  "mom_change": {
                    "description": "Change vs one calendar month earlier",
                    "type": "number"
                  },
                  "mom_pct": {
                    "description": "% change vs one calendar month earlier",
                    "type": "number"
                  },
                  "pct_rank_5y": {
                    "description": "Fraction of the trailing 60 periods strictly below the current value, 0 to 1 (not 0-100)",
                    "type": "number"
                  },
                  "rolling_12m_avg": {
                    "description": "12-period rolling average",
                    "type": "number"
                  },
                  "rolling_3m_avg": {
                    "description": "3-period rolling average",
                    "type": "number"
                  },
                  "trend_direction": {
                    "description": "Trend: 1 rising, -1 falling, 0 flat",
                    "type": "integer"
                  },
                  "value": {
                    "description": "Raw observed value in series units",
                    "type": "number"
                  },
                  "yoy_change": {
                    "description": "Change vs one calendar year earlier",
                    "type": "number"
                  },
                  "yoy_pct": {
                    "description": "% change vs one calendar year earlier",
                    "type": "number"
                  },
                  "zscore_12m": {
                    "description": "Z-score vs trailing 12 periods",
                    "type": "number"
                  },
                  "zscore_5y": {
                    "description": "Z-score vs trailing 60 periods",
                    "type": "number"
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "meta": {
              "description": "Series metadata: source_key (FRED series ID), units, frequency (D/W/M/Q/A), date_from, date_to, fields",
              "type": "object"
            }
          },
          "type": "object"
        },
        "type": {
          "description": "Response format. Always \"json\" (or \"toon\" if fmt=toon was requested)",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}