Cargo Features

[dependencies]
xcm-fee-payment-runtime-api = { version = "0.4.0", default-features = false, features = ["std", "runtime-benchmarks"] }
default = std

The std feature is set by default whenever xcm-fee-payment-runtime-api is added without default-features = false somewhere in the dependency tree.

std default

Enables std of parity-scale-codec, frame-support ^35.0.0, scale-info, sp-api ^33.0.0, sp-runtime ^38.0.0, sp-std, sp-weights, and staging-xcm

runtime-benchmarks

Enables runtime-benchmarks of frame-support ^35.0.0 and sp-runtime ^38.0.0

xcm-fee-payment-runtime-api has 3 features without comments.