{"uid":"cap_ldD9xbESZPYaiKarMLhDw","slug":"fred-macro-series-observations-via-maxwell-x402-d13c485f","name":"FRED Macro Series Observations via Maxwell x402","description":"FRED (Federal Reserve Bank of St. Louis) series observations by series id, e.g. GDP, UNRATE, CPIAUCSL: dates and values with the series title, units and frequency.","url":"https://api.maxwellinternational.ai/v1/macro/fred/series?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","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"count":120,"title":"Gross Domestic Product","units":"Billions of Dollars","latest":{"date":"2026-04-01","value":"32486.066"},"source":"https://api.stlouisfed.org/fred/series/observations","seriesId":"GDP","fetchedAt":"2026-09-26T02:27:13.554Z","frequency":"Quarterly","lastUpdated":"2026-08-26 07:49:01-05","observations":[{"date":"1996-07-01","value":"8131.408"}],"seasonalAdjustment":"Seasonally Adjusted Annual Rate"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4uiXWD7cJP0L2uqOWPYPf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches time-series macroeconomic data observations from the St. Louis Fed FRED API for a given series (e.g. GDP, CPI, unemployment) via a pay-per-call x402 proxy.","exampleAgentPrompt":"Can you pull the latest GDP observations from FRED — I need the full time series with dates and values, quarterly frequency, seasonally adjusted?","exampleUseCases":[{"title":"Track US GDP growth over time","prompt":"Fetch me the full historical GDP time series from FRED, quarterly frequency, seasonally adjusted, so I can see how it's trended over the last 30 years."},{"title":"Monitor current inflation data","prompt":"What's the latest CPI value from FRED? Pull the most recent observation and the full series so I can track how inflation has changed."},{"title":"Economic dashboard data feed","prompt":"I'm building a macro dashboard — can you grab the FRED series observations for unemployment rate, including all historical dates and values and the units?"}],"resultDescription":"A JSON object containing the series title, units, frequency, seasonal adjustment type, source URL, fetch timestamp, last updated date, total observation count, the latest observation (date + value), and an array of all historical observations each with a date and value.","failureModes":["Invalid or unknown FRED series ID returns an error or empty observations","Network timeout if FRED upstream is slow or unavailable","Payment failure if x402 USDC balance is insufficient","Malformed query parameters may return unexpected or empty results","Rate limiting from upstream FRED API can cause transient failures"],"whenToPreferThis":"Choose this endpoint when you need programmatic, pay-per-call access to FRED macroeconomic time-series data without managing a FRED API key, and you prefer micropayment-based access via the x402 protocol. It is ideal for agents that need on-demand economic data (GDP, CPI, unemployment, etc.) with a predictable per-call cost of $0.005 USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:44:05.923Z","isFirstParty":false,"canonicalSlug":"fred-macro-series-observations-via-maxwell-x402-d13c485f"}