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LastLook Data — FRED Series Value by Date
x402
LastLook Data — FRED Series Value by Date is a paid API for AI agents from api.lastlookdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns the value of a supported FRED economic data series for a specific historical business date.
Price / call$0.01
Success—
StatusUnknown
How this service works
LastLook Data — value for any supported FRED series on a specific date. Use ?id=SERIES_ID&d=YYYY-MM-DD. Business days only.
Output
Returns the observed value of the requested FRED series (e.g. FEDFUNDS, DGS10, CPIAUCSL) for the specified business date — a single numeric data point with its date and series metadata.
Example use cases
Mortgage rate comparison across closing dates
“I need to compare mortgage rates on three different dates when my clients closed their refinances—can you pull the 30-year mortgage rate from LastLook Data for March 15 2024, September 8 2023, and January 12 2024?”
Historical unemployment rate lookup for analysis
“Help me find what the unemployment rate was on the day our company went public. That was June 7 2019—pull the exact UNRATE value from LastLook Data for that business day.”
Treasury yield research for investment decisions
“I'm analyzing our portfolio performance against market conditions. Can you get me the 10-year Treasury yield from LastLook Data for November 1 2023 and December 15 2023 so I can see how rates shifted?”
Technical details
Endpoint
GEThttps://api.lastlookdata.com/api/dateWhen to prefer
Use this endpoint when you need the exact value of a specific FRED economic series on a particular historical business date. Prefer this over the /api/current endpoint when historical point-in-time data is needed, and over the /api/last30 or /api/last90 endpoints when you only need a single date rather than a range. Best for backtesting, event-driven lookups, or answering 'what was X on date Y' questions.
Side effects
- Non-business day requested (weekends, holidays) — no data available for that date
- Invalid or unsupported FRED series ID — only the 24 enumerated series IDs are supported
- Date out of range — too far in the past or future where data doesn't exist
- Missing required query parameters id or d — returns error
- Malformed date format — must be YYYY-MM-DD
- Payment failure — x402 payment of $0.01 USDC not completed
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"d": "2024-03-20",
"id": "FEDFUNDS"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"date": "2024-03-01",
"note": "Source: Federal Reserve Bank of St. Louis (FRED)",
"label": "Federal Funds Effective Rate",
"value": 5.33,
"service": "LastLook Data",
"series_id": "FEDFUNDS"
}Tags
x402
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