> ## Documentation Index
> Fetch the complete documentation index at: https://docs.4mica.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Rust

> Rust support for 4Mica is in progress.

# Rust

We are building Rust support for 4Mica based on the client integration roadmap shared here.

HTTP client wrappers for Rust are coming soon. A `reqwest`-based wrapper with automatic 402 handling is on the roadmap. In the meantime, you can call the facilitator API directly or use the Rust SDK for collateral and wallet operations.

## What Is Planned

* `reqwest` middleware layer with automatic 402 retry.
* `FourMicaEvmScheme` Rust implementation for EIP-712 guarantee signing.
* Unique request ID generation and `X-PAYMENT` / `PAYMENT-SIGNATURE` header construction.
* Multi-network client registry.