關鍵字 / Keywords: 美聯儲 經濟數據 GDP 失業率 CPI 通膨 利率 時間序列 FRED Federal Reserve St Louis Fed economic time series macro unemployment inflation interest rate treasury monetary consumer price
Scope: US Federal Reserve Economic Data (FRED) · 816,000+ macro / monetary / financial time series curated by the St. Louis Fed.
Natural-language search across FRED series titles. Returns series_id + human-readable title + units + frequency + last observation date + popularity — the fields agents need to pick the right series before pulling observations.
Endpoint: https://api.stlouisfed.org/fred/series/search?search_text=…
Args: query: free-text query (e.g. "unemployment", "consumer price index", "10-year treasury", "federal funds rate"). limit: max hits to return (default 10, hard cap 100). order_by: FRED sort key. Common values: "search_rank" (default · text relevance), "popularity", "frequency", "observation_start", "observation_end", "last_updated".
Requires US_FRED_API_KEY environment variable (free from
https://fred.stlouisfed.org/docs/api/api_key.html, ~1 min signup
with email). Response includes license warning that FRED
aggregates third-party series (OECD, Eurostat, ISM, …) which
carry origin-jurisdiction copyright — check per-series
copyright (surfaced in observations responses) before
redistributing.