{"uid":"cap_1NheOP9JJWVYet3YPWxdD","slug":"api-lastlookdata-com-116dfb4a","name":"LastLook Data — Mortgage Pulse Bundle","description":"LastLook Data — mortgage market pulse: 30yr and 15yr mortgage rates, 10Y Treasury, Fed funds, median home price, housing starts. Includes MBS spread and rate trend.","url":"https://api.lastlookdata.com/api/bundle/mortgage-pulse","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":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{}}},"response":{"note":"Source: Federal Reserve Bank of St. Louis (FRED)","as_of":"2026-06-11","bundle":"mortgage_pulse","series":{"DGS10":4.43,"HOUST":1177,"MSPUS":403200,"FEDFUNDS":null,"MORTGAGE15US":5.84,"MORTGAGE30US":6.52},"derived":{"mbs_spread":2.09,"mbs_spread_label":"30yr mortgage rate minus 10Y Treasury yield"},"service":"LastLook Data","signals":{"rate_trend_30d":"flat"}}},"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.4","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.4/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DQlkn_7eTEePfC38tWoIT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.4","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a comprehensive mortgage market snapshot including 30yr and 15yr mortgage rates, 10Y Treasury yield, Fed funds rate, MBS spread, median home price, housing starts, and rate trend.","exampleAgentPrompt":"Can you pull the latest mortgage market pulse — I need current 30yr and 15yr mortgage rates, the 10Y Treasury yield, Fed funds rate, MBS spread, median home price, and housing starts all in one shot?","exampleUseCases":null,"resultDescription":"A bundled JSON object containing the most recent values for 30-year and 15-year fixed mortgage rates, 10Y Treasury yield, Federal funds rate, MBS spread, median home price, housing starts, and a rate trend signal — all in one response.","failureModes":["Data source temporarily unavailable from FRED or upstream provider — may return 503 or stale data","Payment of 0.4 USDC not fulfilled via x402 — returns 402 Payment Required","Rate limiting or abuse detection — returns 429 Too Many Requests","Unexpected schema change in upstream FRED data — partial or malformed response"],"whenToPreferThis":"Use this endpoint when you need a single-call snapshot of the entire US mortgage market — including rates, housing fundamentals, and rate trend — rather than querying individual FRED series separately. Ideal for mortgage market briefings, housing affordability analysis, or LLM context injection requiring multiple correlated indicators at once.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:44:19.500Z","isFirstParty":false}