The Fed's preferred inflation gauge, measuring price changes in personal consump

The Fed's preferred inflation gauge, measuring price changes in personal consumption. Broader than CPI, covers more goods and services. Used directly by the FOMC in setting policy targets. Monthly frequency, includes MoM, YoY, rolling averages, and trend direction.

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Endpoint

GET https://stationfx.com/economic-data/inflation/personal-consumption-expenditures-chain-type-price-index

Our checks, last 30 days

Example input (from the provider)

{
  "method": "GET",
  "queryParams": {
    "date_from": "2024-01-01",
    "date_to": "2024-12-31",
    "fmt": "json"
  },
  "type": "http"
}

Promised output schema (from the provider)

{
  "$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": "1 if value is above long-run trend, else 0",
                    "type": "integer"
                  },
                  "date": {
                    "description": "Observation date YYYY-MM-DD",
                    "type": "string"
                  },
                  "mom_change": {
                    "description": "Month-over-month absolute change",
                    "type": "number"
                  },
                  "mom_pct": {
                    "description": "Month-over-month % change",
                    "type": "number"
                  },
                  "pct_rank_5y": {
                    "description": "Percentile rank over trailing 5 years (0-100)",
                    "type": "number"
                  },
                  "rolling_12m_avg": {
                    "description": "12-month rolling average",
                    "type": "number"
                  },
                  "rolling_3m_avg": {
                    "description": "3-month 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": "Year-over-year absolute change",
                    "type": "number"
                  },
                  "yoy_pct": {
                    "description": "Year-over-year % change",
                    "type": "number"
                  },
                  "zscore_12m": {
                    "description": "Z-score relative to trailing 12 months",
                    "type": "number"
                  },
                  "zscore_5y": {
                    "description": "Z-score relative to trailing 5 years",
                    "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"
}

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