# Fuel Types
[](https://github.com/FuelLabs/fuel-types/actions/workflows/ci.yml)
[](https://crates.io/crates/fuel-types)
[](https://docs.rs/fuel-types/)
[](https://discord.gg/xfpK4Pe)
Rust implementation of the atomic types for the [FuelVM](https://github.com/FuelLabs/fuel-specs).
## Compile features
- `std`: Unless set, the crate will link to the core-crate instead of the std-crate. More info [here](https://docs.rust-embedded.org/book/intro/no-std.html).
- `alloc`: Use [Vec](https://doc.rust-lang.org/alloc/vec/struct.Vec.html) from [alloc](https://doc.rust-lang.org/alloc/index.html) for `no-std`.
- `random`: Implement `no-std` [rand](https://crates.io/crates/rand) features for the provided types.
- `serde`: Add support for [serde](https://crates.io/crates/serde) for the provided types.