{"uid":"cap_ltHYqpwr_UeZcmen099Po","slug":"fathom-macroeconomic-data-api-release-series-bbb3051e","name":"Fathom Macroeconomic Data API — Release Series","description":"Free macroeconomic data API powered by FRED. 816,000+ economic time series. GDP, inflation, unemployment, interest rates, and more.","url":"https://frederalfathom.vercel.app/api/release-series?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["releaseId"],"properties":{"limit":{"type":"string","description":"Max results (default: 20)"},"releaseId":{"type":"string","description":"FRED release ID"}}},"responseSchema":{"type":"object","required":["source"],"properties":{"series":{"type":"array","items":{"type":"object"}},"source":{"type":"string"},"release_id":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.4","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_LrVPYnwxr_gtgo-FEF6Ej","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.4","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves the list of economic time series belonging to a specific FRED data release (e.g. all series in the GDP release)","exampleAgentPrompt":"Can you pull all the economic time series from FRED release ID 10 — give me up to 50 results so I can see which GDP-related series are available?","exampleUseCases":[{"title":"Exploring GDP release series","prompt":"Show me all the time series included in FRED release 53 — I want to see what GDP data series are available, up to 30 results."},{"title":"Finding CPI inflation indicators","prompt":"What economic series are in FRED's Consumer Price Index release? Use release ID 10 and give me the first 20 series so I can pick the right inflation indicator."},{"title":"Researching unemployment data series","prompt":"List all the series under FRED release 50, which covers unemployment data — I need to find the right series before I pull the actual numbers."}],"resultDescription":"Returns a JSON object containing the source attribution (FRED), the queried release ID, and an array of series objects — each describing an economic time series belonging to that release, including metadata such as series ID, title, frequency, units, and observation dates.","failureModes":["Missing or invalid releaseId returns an error or empty series array","Non-existent FRED release ID may return empty results with no series","Exceeding API rate limits may result in request failures","Network timeout from the Vercel-hosted proxy layer","Malformed limit parameter (non-numeric string) may cause unexpected behavior"],"whenToPreferThis":"Use this endpoint when you need to discover which specific economic time series belong to a particular FRED data release — ideal for exploring available indicators before fetching actual data values. Prefer this over general search endpoints when you already know the FRED release ID and want a structured list of its constituent series. It is especially useful for building data pipelines that need to enumerate all series in a release category like GDP, CPI, or unemployment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:05:15.256Z","isFirstParty":false,"canonicalSlug":"fathom-macroeconomic-data-api-release-series-bbb3051e"}