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Fathom Macroeconomic Data API — Latest Value
x402
Fathom Macroeconomic Data API — Latest Value is a paid API for AI agents from fathom-opal.vercel.app, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).
Returns the most recent data point for any FRED economic time series given a series ID
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
Returns a JSON object containing the latest data point (value and date) for the requested FRED series, the series ID echoed back, and a source attribution string indicating the data comes from FRED.
Example use cases
Real-time inflation monitoring dashboard
“Pull the latest CPI reading using FRED series CPIAUCSL so I can see where inflation stands right now.”
Interest rate research for mortgage analysis
“What's the current 30-year fixed mortgage rate? Grab the latest value from FRED series MORTGAGE30US.”
Economic briefing for investment memo
“I need the most recent US real GDP growth figure — can you fetch it using FRED series A191RL1Q225SBEA?”
Technical details
Endpoint
POSThttps://fathom-opal.vercel.app/api/latestWhen to prefer
Choose this endpoint when you need the single most recent value for any of FRED's 816,000+ economic time series — especially useful for real-time economic indicators like GDP, CPI, unemployment, interest rates, or money supply. Prefer this over direct FRED API access when you want a simple, low-friction paid endpoint without managing FRED API keys. Best for spot lookups rather than historical time series retrieval.
Side effects
- Invalid or unknown FRED series ID returns an error or empty result
- Series exists but has no recent data points
- Network timeout on the Vercel deployment
- Payment of 0.04 USDC not completed results in 402 error
- Series ID provided in wrong format (case-sensitive)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seriesIdrequired | string | FRED series ID |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| latest | object | |
| sourcerequired | string | |
| series_id | string |
Tags
x402
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