ative ▁released ▁version ▁ 3 . 0 . 0 ▁of ▁its ▁specification . ▁M ule So ft , ▁the ▁main ▁contrib utor ▁to ▁the ▁alternative ▁REST ful ▁API ▁Model ing ▁Language ▁( RA ML ), ▁joined ▁the ▁O AS ▁and ▁open - s our ced ▁their ▁API ▁Model ing ▁Framework ▁tool , ▁which ▁can ▁generate ▁O AS ▁documents ▁from ▁RA ML ▁input . ▁ ▁Release ▁dates ▁ ▁Us age ▁App lications ▁implemented ▁based ▁on ▁Open API ▁interface ▁files ▁can ▁automatically ▁generate ▁documentation ▁of ▁methods , ▁parameters ▁and ▁models . ▁This ▁helps ▁keep ▁the ▁documentation , ▁client ▁libraries , ▁and ▁source ▁code ▁in ▁sync . ▁ ▁Fe atures ▁The ▁Open API ▁Spec ification ▁is ▁language - agnostic . ▁With ▁Open API ' s ▁declar ative ▁resource ▁specification , ▁clients ▁can ▁understand ▁and ▁consume ▁services ▁without ▁knowledge ▁of ▁server ▁implementation ▁or ▁access ▁to ▁the ▁server ▁code . ▁ ▁Tools ▁that ▁work ▁with ▁Open API ▁The ▁Open API ▁In iti ative ▁maintain s ▁a ▁list ▁of ▁implementations ▁for ▁version ▁ 3 . 0 ▁of ▁the ▁specification . ▁Sm art B ear ▁still ▁br ands ▁its ▁Open API ▁tools ▁with ▁the ▁Sw agger ▁mon iker . ▁The ▁Sw agger ▁UI ▁framework ▁allows ▁both ▁developers ▁and ▁non - developers ▁to ▁interact ▁with ▁the ▁API ▁in ▁a ▁sand box ▁UI ▁that ▁gives ▁insight ▁into ▁how ▁the ▁API ▁respond s ▁to ▁parameters ▁and ▁options . ▁Sw agger ▁can ▁handle ▁both ▁JSON ▁and ▁XML . ▁ ▁Sw agger ▁Code gen ▁contains ▁a ▁template - dri ven ▁engine ▁to ▁generate ▁documentation ,