Agent of Vega is a science fiction novel by American writer James H. Schmitz, published in 1960.

In 1960 it appeared as a book, along with three loosely related stories set in the same time and context: "The Illusionists", "The Truth About Cushgar" and "The Second Night of Summer".

In the far future, humans are building a "Confederacy of Vega" to replace the original fallen Empire of Earth.

This consists of the original four stories plus "The Custodians", "Gone Fishing", "The Beacon to Elsewhere", "The End of the Line", "Watch the Sky", "Greenface" and "Rogue Psi".

Galaxy's Floyd C. Gale rated the original edition 4.5 stars out of five: "What places Schmitz's work above run-of-the-mill S.O.