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Fathom Macroeconomic Data API — Sources Endpoint
x402
Fathom Macroeconomic Data API — Sources Endpoint is a paid API for AI agents from fathoms.vercel.app, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-15).
Lists available macroeconomic data sources powering the Fathom API, which provides access to 816,000+ FRED economic time series
Price / call$0.04
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 list of macroeconomic data sources available through the Fathom API, likely including source names, IDs, and descriptions corresponding to FRED data providers. Enables callers to understand which economic databases underpin the 816,000+ available time series before making targeted series queries.
Example use cases
Discover available FRED data sources
“Before I build my economic dashboard, can you pull the list of all available data sources from the Fathom macro API so I know what economic databases I can query?”
Research macro data coverage for a report
“I'm writing a report on US inflation trends — can you check what data sources Fathom has available so I can cite the right underlying databases?”
Agent pre-flight source discovery
“Before querying any economic time series, list the available sources in the Fathom API so I can pick the right one for interest rate and unemployment data.”
Technical details
Endpoint
POSThttps://fathoms.vercel.app/api/sourcesWhen to prefer
Use this endpoint when you need to discover which data sources are available before querying specific economic time series. It is the right first call in a workflow that involves browsing or searching FRED-backed macroeconomic data via Fathom, especially when you don't yet know which source ID to pass to downstream series queries. Prefer this over direct FRED API access when you want a single micropayment-gated, simplified interface to FRED's catalog.
Side effects
- Payment not provided or insufficient USDC — 402 Payment Required
- POST body malformed or unexpected content type — 400 Bad Request
- Vercel serverless cold start causing timeout on first call
- Service temporarily unavailable on Fathom's Vercel deployment — 503
- No sources returned if underlying FRED connection is down
Tags
x402
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