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Fathom Macroeconomic Data API
x402
Fathom Macroeconomic Data API is a paid API for AI agents from fathom-opal.vercel.app, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-15).
Fetches economic time series data from FRED (Federal Reserve Economic Data) by series ID, returning historical macroeconomic indicators like GDP, inflation, and unemployment.
Price / call$0.06
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
Returns a JSON object containing the FRED series ID, the data source identifier, and an info object with metadata and historical data points for the requested economic time series.
Example use cases
Track inflation for economic report
“Get me the latest CPI inflation data from FRED — use series ID CPIAUCSL — so I can include it in my quarterly economic summary.”
Monitor GDP growth over time
“Fetch the US real GDP time series from FRED using series ID GDPC1, I want to see how economic output has changed over the past few years.”
Research interest rate trends
“Can you look up the Federal Funds Effective Rate from FRED — the series ID is FEDFUNDS — and give me the historical data so I can analyze rate hike cycles?”
Technical details
Endpoint
POSThttps://fathom-opal.vercel.app/api/seriesWhen to prefer
Choose this endpoint when you need structured access to any of FRED's 816,000+ macroeconomic time series by their known FRED series ID, especially for US economic indicators like GDP, CPI, unemployment, or interest rates. It is ideal when you already know the FRED series ID and need a quick, pay-per-call lookup without setting up a full FRED API key or subscription.
Side effects
- Invalid or non-existent FRED series ID returns an error or empty result
- Network timeout if FRED upstream is slow
- Payment failure (x402) if insufficient USDC balance
- Rate limiting if too many requests are made in quick succession
- Malformed request body missing the required seriesId field
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seriesIdrequired | string | FRED series ID (e.g. GDP, UNRATE) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| info | object | |
| sourcerequired | string | |
| seriesId | string |
Tags
x402
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