{"uid":"cap_Lbk0CUW-Opkj80peAQfqd","slug":"fred-effective-federal-funds-rate-changes-7f004a5e","name":"FRED Effective Federal Funds Rate Changes","description":"New data prints of effective federal funds rate since a timestamp (US Federal Reserve / FRED), with each % value and its observation date. Answers \"did effective federal funds rate change, and to what?\"","url":"https://oracles-production.up.railway.app/v1/econ-fed-funds/changes","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","properties":{"limit":{"type":"integer","maximum":500,"minimum":1},"since":{"type":"string","format":"date-time","description":"Only changes detected after this ISO-8601 instant"},"min_significance":{"type":"integer","maximum":10,"minimum":1,"description":"Keep only changes scored at least this"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"count":{"type":"integer"},"source":{"type":"string"},"changes":{"type":"array","items":{"type":"object","properties":{"type":{"type":"string"},"title":{"type":"string"},"detail":{"type":"object"},"summary":{"type":"string"},"entityId":{"type":"string"},"sourceUrl":{"type":["string","null"],"description":"Primary-source link for verification"},"detectedAt":{"type":"string","format":"date-time"},"significance":{"type":"integer","maximum":10,"minimum":1},"effectiveDate":{"type":["string","null"]}}}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_JbZ97gxmstM0frTiGA_mb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns new FRED observations of the effective federal funds rate, including value, date, and significance score, filtered by recency and significance threshold.","exampleAgentPrompt":"Pull the latest effective federal funds rate changes from FRED since January 1, 2025 — give me up to 20 results and only include changes with a significance score of at least 6.","exampleUseCases":null,"resultDescription":"Returns a JSON object with a count of changes, a source label (FRED), and an array of change objects each containing: type, title, summary, detail object, entityId, sourceUrl for verification, detectedAt timestamp, significance score (1–10), and effectiveDate.","failureModes":["FRED_API_KEY not set — endpoint no-ops and returns empty or error response","Invalid ISO-8601 format for 'since' parameter returns a 400 validation error","limit out of range (less than 1 or greater than 500) returns a 400 error","min_significance out of range (less than 1 or greater than 10) returns a 400 error","No new observations since the provided timestamp returns an empty changes array","Upstream FRED API unavailable causes a 502 or timeout response"],"whenToPreferThis":"Choose this endpoint when you need structured, machine-readable FRED observations of the effective federal funds rate with significance filtering and change detection — especially for monitoring workflows that need to detect new rate prints since a known timestamp. Prefer over general FRED wrappers when you need the change-detection framing, significance scoring, and ISO-8601 time-bounded queries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:50:21.922Z","isFirstParty":false}