# StationFX FRED Economic Time-Series Query

> StationFX FRED Economic Time-Series Query is a paid API for AI agents from stationfx.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).

Fetches FRED economic time-series data enriched with derived metrics including month-over-month change, year-over-year change, z-score, and percentile rank for a given series ID.

## Facts

- Endpoint: GET https://stationfx.com/query/:id
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stationfx-fred-economic-time-series-query-b97de1d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JVjky96fRKJqzyV4plq8J

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stationfx-fred-economic-time-series-query-b97de1d1
```

Example prompt: Pull the FRED CPI inflation series (CPIAUCSL) and give me the latest value along with the month-over-month change, year-over-year change, z-score, and where it ranks historically as a percentile.

## When to prefer this

Choose this endpoint when you need FRED economic time-series data pre-enriched with statistical context (MoM, YoY, z-score, percentile rank) without having to compute derived metrics yourself. Ideal for macro research, investment signals, and economic monitoring dashboards where understanding whether a current reading is historically extreme matters. Prefer over raw FRED API when you want derived metrics in a single call rather than post-processing data yourself.

## Known failure modes

- Invalid or unsupported series ID returns an error — only 44 listed series are available
- FRED data source outage may result in stale or unavailable data
- Malformed series ID path parameter causes a request failure
- Series with insufficient historical data may return undefined z-score or percentile rank

## How this service works

Function marketplace for AI agents. Browse economic data, computed signals, and deterministic functions across 12 categories. Pay per call in USDC on Base via x402. No API keys, no subscriptions. Search the catalog free at /discover/search, inspect before buying at /discover/{listing_id}, pay only to query.

## Output

Returns FRED economic time-series data for the requested series ID, enriched with computed derived metrics: month-over-month (MoM) change, year-over-year (YoY) change, z-score relative to historical distribution, and percentile rank. Covers 44 series spanning inflation, interest rates, labor market, GDP, and credit indicators.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stationfx-fred-economic-time-series-query-b97de1d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stationfx.com](https://www.zero.xyz/host/stationfx.com/llms.txt)