{"uid":"cap_wpw2NdZPHT_ni_rrsxOO8","slug":"fathom-macroeconomic-data-api-sources-796fae23","name":"Fathom Macroeconomic Data API — Sources","description":"Free macroeconomic data API powered by FRED. 816,000+ economic time series. GDP, inflation, unemployment, interest rates, and more.","url":"https://fathom-opal.vercel.app/api/sources","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.04","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":"$0.04/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zYz49efW_q088EDRgpNVg","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.04","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Lists available macroeconomic data sources from the FRED-powered Fathom API, enabling discovery of 816,000+ economic time series.","exampleAgentPrompt":"What macroeconomic data sources are available through the Fathom API? I want to know which FRED-based series I can query for things like GDP, inflation, and unemployment rates.","exampleUseCases":[{"title":"Discover available GDP series","prompt":"Before I pull GDP data, can you show me what sources and series identifiers are available in the Fathom macro API so I know what to query next?"},{"title":"Explore inflation data feeds","prompt":"I want to build a dashboard tracking inflation — can you list all the available data sources in Fathom so I can find the right CPI or PCE series to use?"},{"title":"Audit accessible economic datasets","prompt":"Can you fetch the full list of data sources from the Fathom macroeconomic API so I can see what FRED time series are accessible before designing my economic analysis workflow?"}],"resultDescription":"Returns a list of available macroeconomic data sources accessible through the Fathom API, including source identifiers, names, and metadata about what FRED-based economic time series can be queried, covering categories like GDP, inflation, unemployment, and interest rates.","failureModes":["Payment failure if USDC balance is insufficient (x402 payment required at $0.04 per call)","Empty or malformed POST body may return a 400 error","Network timeout if the Vercel deployment is cold-starting","Rate limiting or throttling under high request volume","FRED upstream outage causing data unavailability"],"whenToPreferThis":"Choose this endpoint when you need to discover which macroeconomic data sources and FRED time series are available before making targeted data queries. It is the right starting point for any workflow that needs to enumerate available economic indicators — especially useful for building dashboards, research tools, or agent workflows that need to dynamically select series. Prefer this over direct series queries when you don't yet know the exact source identifiers you need.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:49:58.875Z","isFirstParty":false}