CPI excluding food and energy — the Fed's preferred measure of underlying inflat

CPI excluding food and energy — the Fed's preferred measure of underlying inflation trend. Strips out volatile components to reveal persistent price pressure. Critical input for Fed policy models and inflation persistence analysis. Monthly frequency with full derived metrics including z-score and percentile rank.

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

GET https://stationfx.com/economic-data/inflation/consumer-price-index-for-all-urban-consumers-all-items-less-food-and-energy-in-u-s-city-average

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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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