{"uid":"cap_TYjGc9pX_BK9CBMdieIkD","slug":"heurist-mesh-fred-macro-vintage-history-6c065dd2","name":"Heurist Mesh: FRED Macro Vintage History","description":"Return point-in-time-safe history for one curated series using ALFRED realtime dates. Use this for backtests or retrospective questions where revised history would be misleading.","url":"https://mesh.heurist.xyz/x402/agents/FredMacroAgent/macro_vintage_history","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vWqZFAvxTMSdoAXff5lqQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns point-in-time-safe historical data for a single FRED macroeconomic series using ALFRED vintage dates, suitable for backtests and retrospective analysis.","exampleAgentPrompt":"Pull the point-in-time vintage history for the FRED series UNRATE (U.S. unemployment rate) as of realtime date 2020-03-01 — I need the unrevised values so I can backtest a trading model without look-ahead bias.","exampleUseCases":[{"title":"Backtest with unrevised GDP data","prompt":"Get me the vintage history for FRED series GDP as it was known on 2019-01-01 — I'm running a backtest and need the original unrevised values, not the current revised ones."},{"title":"Retrospective inflation analysis","prompt":"Fetch the point-in-time ALFRED history for CPIAUCSL as of realtime date 2022-06-01 so I can analyze what inflation data looked like to policymakers at that moment."},{"title":"Avoid look-ahead bias in macro model","prompt":"I'm building a macro factor model and need the FRED series PAYEMS employment data exactly as it was reported on 2018-09-01 — give me the vintage history so I don't accidentally use revised numbers."}],"resultDescription":"A time series of historical values for the specified FRED macroeconomic series as they existed at a given realtime (vintage) date, including original release figures without subsequent revisions, enabling point-in-time-safe analysis and backtesting.","failureModes":["Invalid or unknown FRED series ID returns an error or empty result","Realtime date outside available ALFRED vintage range returns no data","Malformed date format causes a request validation error","Series with no revisions history may return identical data to current FRED","Network timeout or upstream ALFRED API unavailability causes 5xx error"],"whenToPreferThis":"Choose this endpoint when you need macroeconomic data exactly as it was known at a specific historical moment — critical for backtesting trading strategies, building factor models, or conducting retrospective policy analysis where using revised data would introduce look-ahead bias. Prefer this over standard FRED endpoints whenever historical accuracy at a point in time matters more than the most current revised values.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T13:01:51.012Z","isFirstParty":false}