  In this paper, we study various cosmological parameters and quantities in
scalar-tensor gravity from inflation and swampland conjecture. Therefore, by
selecting different models such as power-law, exponential, and logarithmic in
the framework of scalar-tensor theory, we obtain potential, tensor-to-scalar
ratio, and the scalar spectral index. Next, we examine new constraints and
compare the corresponding results with the latest observable data. Here, we
take advantage of the obtained results and determine the compatibility or
incompatibility of the corresponding model with the swampland conjectures
