I don't think the !sfx script is available in the one-click API library, but Roll20 AudioMaster will perform the same function and a lot more. If you are using the D&D 5e by Roll20 sheet, you could place the following code into the description field of the spell or attack. Those extra lines and characters are in there for inscrutable reasons: }} !roll20AM --audio,play|Name_of_Sound ! Unfortunately, that has some drawbacks. According to reports, it "stops the sheet from applying global damage modifiers, tracking spell slots or ammo" Scripter Scott C. offers this advice : Scott C. said: Unfortunately, the ogl sheet changed the order of it's default fields. This means that hack I developed no longer works. The only way to do it now is to make a custom ability that calls each attack/spell roll and appends the Roll20 call. Something like this: %{my char|acrobatics} !roll20am --audio,nomenu,play|Grunt of effort