@NEETzsche @lanodan @graf @sjw @karolat @p @amerika @Moon For initiating payments. Payer sends Offer(Agreement) activity to payee, which should be either Accept'ed or Reject'ed
You can read about this mechanism in FEP-0837 document: https://codeberg.org/fediverse/fep/src/branch/main/fep/0837/fep-0837.md#responding-to-a-proposal