Release build by default
Optimized code, no debug overhead, enabled automatically.
Rust bare-metal, zero overhead
Automatic release build and optimized binaries. GC-free performance for critical workloads.
Why run on Square Cloud
Everything optimized, production-ready.
Native Cargo
Uses your Cargo.toml unmodified — all crates.io crates available.
Predictable memory
No GC, perfect for apps with strict RAM limits.
Hardened containers
Bare-metal performance with container isolation.
Ideal use cases
Where this runtime shines on our platform.
Ultra-high-performance APIs
Axum, Actix-Web, and Rocket backends with Tokio async handling at sub-millisecond latencies.
High-throughput Discord bots
Hosting for serenity and twilight with minimal memory usage and superior throughput.
Heavy processing workers
Compression, cryptography, parsing, and image processing with bare-metal efficiency and zero overhead.
gRPC microservices with Tonic
Typed inter-service communication with bidirectional streaming and Protobuf in production.
Game servers and real-time backends
Apps with sub-ms latency for multiplayer games, leaderboards, and distributed matchmaking.
Trading systems and fintech
Critical workloads with predictable memory, no GC, and consistent latency under heavy load.
Available versions
Pick the track that best fits your project.
Current version
1.95
Single stable toolchain
Technical specs
Everything you need to configure your app.
- Accepted extensions
.rs- Dependency file
Cargo.toml- RUNTIME= aliases
rust
Minimal config
Create a squarecloud.app file at your project root:
squarecloud.appRust
MEMORY=512
DISPLAY_NAME=Meu App
VERSION=recommendedA plan for every stage of your project
Start small and scale when you need to, with no loyalty contracts.
Tier 3ISO 27001SOC 2 Type IIAlways-On DDoS Protection
Explore our infrastructureFrequently asked questions about Rust Hosting
Release build, Cargo, crates.io, and performance.