hopper-vesting

Vesting schedule math for Hopper programs: linear schedules with cliffs, stepped unlocks, elapsed-step calculation, and safe claimable amounts. Pure functions, no_std, no_alloc, and BPF-safe.

Part of the Hopper framework.

The crate does not own schedule storage. Your account layout stores the terms; these helpers compute how much is vested and how much is still claimable at a given timestamp.

use hopper_vesting::{claimable, vested_amount};

let vested = vested_amount(total, start, cliff, end, now);
let to_send = claimable(vested, already_claimed);

Docs: https://docs.rs/crate/hopper-vesting/0.1.0

License: Apache-2.0.