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StationFX PCE Chain-Type Price Index
x402
StationFX PCE Chain-Type Price Index is a paid API for AI agents from stationfx.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).
Returns the Federal Reserve's preferred inflation measure (PCE price index) with MoM, YoY, rolling averages, z-scores, trend direction, and percentile rankings for a specified date range.
Price / call$0.005
Success—
StatusUnknown
How this service works
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.
Output
Returns a JSON array of monthly observations, each containing the raw PCE index value, month-over-month absolute and percentage change, year-over-year absolute and percentage change, 3-month and 12-month rolling averages, 12-month and 5-year z-scores, 5-year percentile rank, and a binary flag indicating whether the reading is above the long-run trend.
Example use cases
Fed policy meeting inflation briefing
“I need a summary of PCE inflation for the last 6 months ahead of the FOMC meeting — give me the month-over-month and year-over-year figures plus whether we're above trend, from January 2024 through June 2024.”
Inflation trend monitoring dashboard
“Fetch monthly PCE price index readings from StationFX from 2022-01-01 to 2024-12-01 so I can chart how inflation has evolved — include the 12-month rolling average and the 5-year percentile rank for each month.”
Macro research report data pull
“I'm writing a research note on inflation — can you get me the latest PCE reading from StationFX, including the year-over-year change, the 5-year z-score, and whether it's above the historical trend?”
Technical details
Endpoint
GEThttps://stationfx.com/economic-data/inflation/personal-consumption-expenditures-chain-type-price-index?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the Fed's official preferred inflation measure (PCE) rather than CPI — particularly for monetary policy analysis, FOMC decision context, or any application where you need broader consumption basket coverage. It is superior to CPI-focused endpoints for Fed-watching, rate outlook modeling, or macro research that aligns with how the Federal Reserve frames its 2% inflation target. The enriched metrics (z-scores, trend flags, percentile ranks) make it especially useful for statistical context without additional computation.
Side effects
- Invalid date format returns a 400 error — dates must be YYYY-MM-DD
- Requesting data outside the available historical range may return an empty data array
- Invalid field names in the fields parameter may be silently ignored or return an error
- Payment not included or insufficient USDC balance returns a 402 Payment Required
- Malformed fmt enum value may default to JSON or return a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "Observation date YYYY-MM-DD"
},
"value": {
"type": "number",
"description": "Raw observed value in series units"
},
"mom_pct": {
"type": "number",
"description": "Month-over-month % change"
},
"yoy_pct": {
"type": "number",
"description": "Year-over-year % change"
},
"zscore_5y": {
"type": "number",
"description": "Z-score relative to trailing 5 years"
},
"mom_change": {
"type": "number",
"description": "Month-over-month absolute change"
},
"yoy_change": {
"type": "number",
"description": "Year-over-year absolute change"
},
"zscore_12m": {
"type": "number",
"description": "Z-score relative to trailing 12 months"
},
"above_trend": {
"type": "integer",
"description": "1 if value is above long-run trend, else 0"
},
"pct_rank_5y": {
"type": "number",
"description": "Percentile rank over trailing 5 years (0-100)"
},
"rolling_3m_avg": {
"type": "number",
"description": "3-month rolling average"
},
"rolling_12m_avg": {
"type": "number",
"description": "12-month rolling average"
},
"trend_direction": {
"type": "integer",
"description": "Trend: 1 rising, -1 falling, 0 flat"
}
}
},
"description": "Observations ordered by date ascending"
},
"meta": {
"type": "object",
"description": "Series metadata: source_key (FRED series ID), units, frequency (D/W/M/Q/A), date_from, date_to, fields"
}
},
"description": "Station f(x) response with metadata and pre-computed derived metrics"
},
"example": {
"data": [
{
"date": "2024-01-01",
"value": 5.33,
"mom_pct": 0,
"yoy_change": 0.5,
"zscore_12m": 1.2,
"trend_direction": 1
}
],
"meta": {
"frequency": "M",
"source_key": "PCEPI"
}
}
}Tags
x402
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