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Fathom Macroeconomic Data API — Series Search
x402
Fathom Macroeconomic Data API — Series Search is a paid API for AI agents from fsthum.vercel.app, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-30).
Searches 816,000+ FRED-powered economic time series by keyword, returning matching macroeconomic data series metadata
Price / call$0.4
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 search query echo, data source attribution, total count of matching series, and an array of matching economic time series objects (each with series metadata such as ID, title, frequency, units, and observation dates) from the FRED database.
Example use cases
Inflation Research Dashboard
“Search for macroeconomic time series about 'CPI inflation' and give me the top 10 results so I can build a chart of US price trends.”
Unemployment Data Discovery
“Find FRED economic data series related to 'unemployment rate' — I need up to 8 series to compare labor market indicators across different demographics.”
Interest Rate Series Lookup
“Can you search for 'federal funds rate' in the FRED macroeconomic database and return the top 5 series so I know which one to pull for my interest rate model?”
Technical details
Endpoint
POSThttps://fsthum.vercel.app/api/search?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to discover or search across FRED's massive catalog of 816,000+ macroeconomic time series by keyword. Prefer this over direct FRED API access when you need a pre-built, payment-ready search interface. Best for agents that need to dynamically find relevant economic indicators without knowing the exact FRED series ID in advance.
Side effects
- Missing required 'query' field returns a 400 or error response
- Empty query string may return zero results or an error
- Overly broad queries may return irrelevant series
- FRED upstream unavailability may cause failures
- Limit parameter passed as non-string may cause validation errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | string | Max results (default: 10) |
| queryrequired | string | Search keywords (e.g. 'inflation rate', 'housing starts') |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| count | number | |
| query | string | |
| series | array | |
| sourcerequired | string |
Tags
x402
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