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Fathom Macroeconomic Data API — Bulk Series Lookup
x402
Fathom Macroeconomic Data API — Bulk Series Lookup is a paid API for AI agents from fathoms.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Fetches observations for multiple FRED economic time series in a single bulk request (GDP, inflation, unemployment, interest rates, etc.)
Price / call$0.15
Success—
StatusUnknown
How this service works
Free macroeconomic data API powered by FRED. 816,000+ economic time series. GDP, inflation, unemployment, interest rates, and more.
Output
A JSON object keyed by FRED series ID, each containing an array of recent observations (date + value pairs) up to the requested limit, along with a source attribution string indicating the data comes from FRED.
Example use cases
Multi-indicator economic dashboard
“Fetch the last 8 data points each for GDP, CPIAUCSL, UNRATE, and FEDFUNDS so I can build a dashboard showing how the economy is performing across growth, inflation, unemployment, and interest rates.”
Inflation and rate hike correlation research
“Get me the last 20 observations for CPIAUCSL and FEDFUNDS so I can analyze whether Fed rate hikes have been correlated with changes in consumer price inflation.”
Recession signal monitoring
“Pull the latest 5 readings each for GDPC1, UNRATE, and USREC from FRED so I can check if any recession warning signals are flashing right now.”
Technical details
Endpoint
POSThttps://fathoms.vercel.app/api/bulkWhen to prefer
Choose this endpoint when you need observations for multiple FRED economic series in a single API call rather than making separate requests per series. It is ideal for dashboards, comparative analysis, or any workflow that needs several macroeconomic indicators simultaneously. Prefer this over single-series endpoints when querying 2 or more FRED series to reduce latency and round-trips.
Side effects
- Invalid or unrecognized FRED series ID returns an error or empty result for that series
- Missing required seriesIds field causes a 400-level validation error
- Requesting too many series simultaneously may hit rate or payload limits
- Payment failure via x402 protocol blocks the request before data is returned
- FRED upstream outage may cause downstream errors or stale data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | string | Observations per series (default: 5) |
| seriesIdsrequired | array | Array of FRED series IDs (e.g. ['GDP', 'UNRATE', 'CPIAUCSL']) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| sourcerequired | string | |
| results | object |
Tags
x402
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