{"uid":"cap_yNLnmdRXKU8Q3Im9W3A9z","slug":"us-cpi-year-over-year-inflation-rate-fred-cpiaucsl-5679cbac","name":"US CPI Year-over-Year Inflation Rate (FRED/CPIAUCSL)","description":"US Consumer Price Index (CPI) year-over-year inflation rate, via FRED (CPIAUCSL)","url":"https://finance-api.kdlcfa.workers.dev/cpi-us?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-9o4GnbtVANduF1zS4iu8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current US Consumer Price Index (CPI) year-over-year inflation rate sourced from the FRED CPIAUCSL series","exampleAgentPrompt":"What is the latest US CPI year-over-year inflation rate from FRED?","exampleUseCases":[{"title":"Real-time inflation dashboard update","prompt":"Pull the latest US CPI year-over-year inflation rate so I can update my macroeconomic dashboard with the most current FRED data."},{"title":"Fed policy research briefing","prompt":"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."},{"title":"Automated inflation alert monitoring","prompt":"Check the latest CPIAUCSL year-over-year reading from FRED and let me know if inflation has moved significantly from last month."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T18:37:51.609Z","isFirstParty":false,"canonicalSlug":"us-cpi-year-over-year-inflation-rate-fred-cpiaucsl-5679cbac"}