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Fathom Macroeconomic Data API — Release Series Lookup
x402
Fathom Macroeconomic Data API — Release Series Lookup is a paid API for AI agents from fathoms.vercel.app, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).
Returns all economic time series belonging to a specific FRED data release, given a FRED release ID
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
An array of economic time series objects associated with the specified FRED release, along with the source identifier and the release ID used in the query. Each series object contains metadata such as the series ID, name, frequency, units, and other FRED series attributes.
Example use cases
Exploring GDP release series
“What economic time series are included in FRED release 53 (which covers GDP data)? Show me up to 30 of them.”
Employment data series discovery
“List all the series available under FRED release 50, which is the Employment Situation — I want to see what indicators are in there.”
Inflation indicators in a release
“Can you find all time series belonging to FRED release 10 so I can see which inflation metrics are tracked in that data release?”
Technical details
Endpoint
POSThttps://fathoms.vercel.app/api/release-seriesWhen to prefer
Use this endpoint when you know a specific FRED release ID and want to enumerate all the time series it contains — ideal for discovery workflows where you need to explore what indicators are available within a macroeconomic data release before fetching individual series. Prefer this over a general series search when you already have the release context and want a structured list of series grouped under that release.
Side effects
- Invalid or non-existent releaseId returns an empty series array or an error
- releaseId not provided triggers a 400 validation error (required field)
- limit parameter ignored or clamped if set to an unsupported value
- Network or upstream FRED API unavailability causes a 500 or timeout
- Payment not provided or insufficient USDC causes a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | string | Max results (default: 20) |
| releaseIdrequired | string | FRED release ID |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| series | array | |
| sourcerequired | string | |
| release_id | string |
Tags
x402
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