Api Endpoint

StationFX

30-year fixed mortgage rate minus 10-year Treasury yield. Measures the premium mortgage lenders charge above the risk-free benchmark. Normal range 150-200bps; elevated spread signals lender risk aversion or MBS prepayment concerns. Pre-computed weekly from MORTGAGE30US and DGS10.

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/cross-signal/mortgage-rate-vs-10y-treasury-spread
MIME type
application/json
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
economic-data, macro-signal, time-series, X402, USDC

Payment pricing

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

Payment option 1
0.008 USDC
Atomic price: 8000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.008 USDC
Atomic price: 8000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "8000",
    "payTo": "0x22f7e9518dff04a5db1fddaabc0e001b8c425b3a"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "8000",
    "payTo": "3snkxosXCo6x5AEBRvnRG6wzJsvBaPpNd68Q2jJ4CVzW"
  }
]

Observed health

Status
Healthy
Latest latency
100 ms
Average latency
251 ms
HTTP status
402
Last checked
Reachability
100% over 13 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."
        }
      }
    }
  },
  "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"
            },
            "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) computed cross-series signal: metadata plus one value per date",
          "properties": {
            "data": {
              "description": "Observations ordered by date ascending",
              "items": {
                "properties": {
                  "date": {
                    "description": "Observation date YYYY-MM-DD",
                    "type": "string"
                  },
                  "value": {
                    "description": "Computed signal value for that date",
                    "type": "number"
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "meta": {
              "description": "Signal metadata: signal_key, label, signal_type, description, date_from, date_to",
              "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"
}