{"uid":"cap_HPktIdj0iJ3KFSBqaHOia","slug":"fathom-macroeconomic-data-api-category-tags-08fcb53f","name":"Fathom Macroeconomic Data API — Category Tags","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/category-tags","method":"POST","headers":{},"bodySchema":{"type":"object","required":["categoryId"],"properties":{"categoryId":{"type":"string","description":"FRED category ID"}}},"responseSchema":{"type":"object","required":["source"],"properties":{"tags":{"type":"array","items":{"type":"object"}},"source":{"type":"string"},"category_id":{"type":"string"}}},"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_2wTdDn3Ia99ms-t5pTnLd","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":"Retrieves the tags associated with a specific FRED economic data category by category ID","exampleAgentPrompt":"What tags are associated with FRED category 125 — the National Accounts category? I want to understand how it's classified in the Fathom macroeconomic data system.","exampleUseCases":null,"resultDescription":"Returns an array of tag objects associated with the specified FRED category, along with the category ID and a source identifier indicating the data origin (e.g. FRED).","failureModes":["Invalid or non-existent FRED category ID returns empty tags array or error","Missing required categoryId field results in validation error","Upstream FRED API unavailability may cause failed or stale responses","Malformed categoryId (non-numeric string) may return no results"],"whenToPreferThis":"Use this endpoint when you need to discover or enumerate the descriptive tags associated with a specific FRED economic data category — useful for metadata exploration, building search filters, or understanding category classification before fetching actual time series data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:43:10.571Z","isFirstParty":false}