{"uid":"cap_YbiYLbOg4kVrs9m68biuB","slug":"macroeconomic-gdp-growth-rate-report-api-x402-8b6e42dc","name":"Macroeconomic GDP Growth Rate Report API (x402)","description":"Machine-to-machine macroeconomic report API. Pay per fetch in USDC over x402. 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Includes key findings, a country ranking table, each economy's share of group total, trend lines with R² values, volatility metrics, a full year-by-year data matrix, and a coverage and data-quality disclosure. The response also provides a free preview URL and schema reference.","failureModes":["Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment header","Invalid format query parameter value — server may reject or ignore the parameter","Upstream World Bank data unavailable — report may be stale or incomplete","Network timeout if the report is large and connection is slow","Free preview endpoint may be used accidentally instead of the paid full report"],"whenToPreferThis":"Choose this endpoint when you need structured, multi-economy GDP growth data with derived analytics (rankings, R², volatility) out of the box, without managing API keys or subscriptions. It is ideal for agents that need to pay per-fetch rather than maintaining a billing relationship, and when you want a ready-made report rather than raw indicator data from a source like World Bank directly. Prefer it over general-purpose economic data APIs when you want the data pre-processed into rankings and trend statistics across a fixed panel of 20 economies.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:47:08.835Z","isFirstParty":false,"canonicalSlug":"macroeconomic-gdp-growth-rate-report-api-x402-8b6e42dc"}