{"uid":"cap_ZFzqGNwmliV7hKBfBwfdW","slug":"fred-30-year-fixed-mortgage-rate-change-monitor-4c6f7414","name":"FRED 30-Year Fixed Mortgage Rate Change Monitor","description":"New data prints of 30-year fixed mortgage rate since a timestamp (US Federal Reserve / FRED), with each % value and its observation date. Answers \"did 30-year fixed mortgage rate change, and to what?\"","url":"https://oracles-production.up.railway.app/v1/econ-mortgage/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_eMS_eltLV64Ei4T_0T7rm","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 newly detected FRED observations of the 30-year fixed mortgage rate, with value, date, and significance score, filtered by recency and importance.","exampleAgentPrompt":"Show me any new 30-year fixed mortgage rate changes detected since January 1, 2025, but only ones with a significance score of at least 5 — limit it to 20 results.","exampleUseCases":null,"resultDescription":"A JSON object containing a count of changes, the source identifier, and an array of change objects each with a type, title, detail, summary, entityId, sourceUrl, detectedAt timestamp, significance score (1-10), and effectiveDate.","failureModes":["FRED_API_KEY not configured — endpoint no-ops and returns empty or error response","since parameter not ISO-8601 formatted — validation error","limit out of range (must be 1-500) — 400 bad request","min_significance out of range (must be 1-10) — 400 bad request","FRED upstream unavailable — may return stale or empty results","Payment of 0.05 USDC not provided — 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need machine-readable, significance-scored change events for the 30-year fixed mortgage rate sourced from FRED, especially when you want to filter by recency or importance threshold. Prefer over raw FRED API calls when you need pre-processed change detection with scoring rather than raw time series data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:45:38.788Z","isFirstParty":false}