{"uid":"cap_tIIpFMyXvoYwBigcs_rGZ","slug":"fathom-macroeconomic-data-api-bulk-series-fetch-604b451d","name":"Fathom Macroeconomic Data API — Bulk Series Fetch","description":"Free macroeconomic data API powered by FRED. 816,000+ economic time series. GDP, inflation, unemployment, interest rates, and more.","url":"https://fredthom.vercel.app/api/bulk","method":"POST","headers":{},"bodySchema":{"type":"object","required":["seriesIds"],"properties":{"limit":{"type":"string","description":"Observations per series (default: 5)"},"seriesIds":{"type":"array","description":"Array of FRED series IDs (e.g. ['GDP', 'UNRATE', 'CPIAUCSL'])"}}},"responseSchema":{"type":"object","required":["source"],"properties":{"source":{"type":"string"},"results":{"type":"object"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.35","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":"$0.35/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.35","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.35","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HG1kmWlJ-IOq6-bvIhc8C","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.35","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches recent observations for multiple FRED economic time series in a single bulk request, covering GDP, inflation, unemployment, interest rates, and 816,000+ other series.","exampleAgentPrompt":"Pull the latest 5 observations each for GDP, UNRATE, CPIAUCSL, and FEDFUNDS from Fathom's FRED-powered bulk API so I can compare recent trends in growth, unemployment, inflation, and interest rates.","exampleUseCases":null,"resultDescription":"A JSON object with a 'source' field identifying FRED and a 'results' object keyed by each requested series ID, containing recent observation values and metadata for each economic time series.","failureModes":["Invalid or unrecognized FRED series ID returns error or empty result for that series","Payment of 0.35 USDC not provided — 402 Payment Required response","Too many series IDs in a single request may cause timeout or partial results","Limit parameter set too high may slow response","FRED upstream outage causes data unavailability"],"whenToPreferThis":"Use this endpoint when you need to fetch multiple FRED economic time series in a single call rather than making individual requests per series. Ideal for macroeconomic dashboards, economic research, financial analysis workflows, or any agent task requiring simultaneous access to indicators like GDP, CPI, unemployment rate, or interest rates. Prefer over direct FRED API when you want a simplified x402-payable interface without managing FRED API keys.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:44:29.430Z","isFirstParty":false}