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US CPI Year-over-Year Inflation Rate (FRED/CPIAUCSL)
x402
US CPI Year-over-Year Inflation Rate (FRED/CPIAUCSL) is a paid API for AI agents from finance-api.kdlcfa.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Returns the current US Consumer Price Index (CPI) year-over-year inflation rate sourced from the FRED CPIAUCSL series
Price / call$0.01
Success—
StatusUnknown
How this service works
US Consumer Price Index (CPI) year-over-year inflation rate, via FRED (CPIAUCSL)
Output
Returns the most recent US CPI (CPIAUCSL) year-over-year inflation rate as a percentage, sourced from the Federal Reserve Bank of St. Louis FRED database, along with the reference period or timestamp of the reading.
Example use cases
Real-time inflation dashboard update
“Pull the latest US CPI year-over-year inflation rate so I can update my macroeconomic dashboard with the most current FRED data.”
Fed policy research briefing
“What is the current US consumer price index year-over-year rate? I'm preparing a brief on where inflation stands relative to the Fed's 2% target.”
Automated inflation alert monitoring
“Check the latest CPIAUCSL year-over-year reading from FRED and let me know if inflation has moved significantly from last month.”
Technical details
Endpoint
GEThttps://finance-api.kdlcfa.workers.dev/cpi-us?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the official US CPI year-over-year inflation rate from FRED (CPIAUCSL), the most authoritative source for US inflation data. Prefer this over market-data APIs that may only surface informal or derived inflation proxies. Ideal for macro research, policy monitoring, or any workflow needing a single, clean, official inflation figure without building a FRED API integration yourself.
Side effects
- FRED upstream unavailable — returns an error or stale data if the FRED API is down
- Rate limiting or payment failure — returns 402 if the x402 micropayment of $0.01 USDC is not completed
- No query parameters required — passing unexpected params has no effect but may be silently ignored
- Data lag — FRED releases CPI data monthly, so the figure reflects the most recent published release, not real-time
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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