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This API serves the two growth rates people quote — quarter-on-quarter (the latest quarter's pace) and year-on-year (versus the same quarter a year earlier) — for real investment. The board endpoint ranks every economy by its year-on-year investment growth, so you can see where capex is booming and where it is collapsing. The momentum endpoint ranks by the latest quarter-on-quarter move. The country endpoint gives one economy's investment growth with a plain-language read. Each reading carries its own quarter and discontinued series are excluded, so the board is genuinely current. The capital-investment / capex cut — distinct from the headline GDP-growth board (this isolates the investment component), the consumer-demand and trade boards, the annual IMF World Economic Outlook database, and the generic multi-provider data aggregator. Figures are quarterly, in percent.","contact":{"name":"PremiumApi","url":"https://www.oanor.com/by/premiumapi"}},"servers":[{"url":"https://api.oanor.com/investmentgrowth-api","description":"oanor gateway"}],"tags":[{"name":"Board"},{"name":"Momentum"},{"name":"Country"},{"name":"Meta"}],"components":{"securitySchemes":{"oanorKey":{"type":"apiKey","in":"header","name":"x-oanor-key","description":"Get your key at https://www.oanor.com/developer/keys"}}},"security":[{"oanorKey":[]}],"paths":{"/v1/board":{"get":{"operationId":"get_v1_board","tags":["Board"],"summary":"Economies ranked by year-on-year real investment growth","description":"","parameters":[{"name":"countries_only","in":"query","required":false,"description":"Drop aggregate groups (true)","schema":{"type":"string"},"example":"true"}],"security":[{"oanorKey":[]}],"responses":{"200":{"description":"OK","content":{"application/json":{"example":{"data":{"note":"Economies ranked by year-on-year real investment growth (gross fixed capital formation: machinery, buildings, infrastructure, equipment; chain-linked volume, seasonally adjusted). 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Quarterly, cached a few hours.","board":[{"code":"SAU","name":"Saudi Arabia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":7.53,"investment_yoy":17.06},{"code":"FIN","name":"Finland","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":6.5,"investment_yoy":11.93},{"code":"LUX","name":"Luxembourg","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":5.22,"investment_yoy":4.43},{"code":"BRA","name":"Brazil","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":3.52,"investment_yoy":-1.61},{"code":"AUS","name":"Australia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":3.01,"investment_yoy":6.47},{"code":"ISR","name":"Israel","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":3.01,"investment_yoy":5.83},{"code":"KOR","name":"Korea","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":2.93,"investment_yoy":1.25},{"code":"IND","name":"India","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":2.58,"investment_yoy":10.84},{"code":"LVA","name":"Latvia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":2.46,"investment_yoy":2.88},{"code":"COL","name":"Colombia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":2.04,"investment_yoy":4.92},{"code":"CZE","name":"Czechia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":2.01,"investment_yoy":7.33},{"code":"PRT","name":"Portugal","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":1.87,"investment_yoy":9.47},{"code":"SVN","name":"Slovenia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":1.45,"investment_yoy":12.78},{"code":"IDN","name":"Indonesia","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":1.41,"investment_yoy":6.06},{"code":"USA","name":"United States","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":1.31,"investment_yoy":2.88},{"code":"CRI","name":"Costa Rica","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":1.24,"investment_yoy":7.58},{"code":"MEX","name":"Mexico","quarter":"2025-Q4","is_aggregate":false,"investment_qoq":0.74,"investment_yoy":-3.9},{"code":"ITA","name":"Italy","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":0.68,"investment_yoy":4.61},{"code":"ESP","name":"Spain","quarter":"2026-Q1","is_aggregate":false,"investment_qoq":0.37,"investment_yoy":5.55},{"code":"USMCA","name":"United States - 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