Faasta is a cutting-edge Function-as-a-Service (FaaS) platform designed for exceptional speed and efficiency. With cold start times under 1ms and a memory overhead of less than 1KB, Faasta delivers unparalleled performance through its modern WebAssembly architecture.
- Runs your code as WebAssembly modules using the WASI P2 standard
- Leverages WASIHTTP for high-performance HTTP request handling
- Provides secure isolation between functions through WebAssembly's sandboxed execution model
- Achieves ultra-fast cold starts without the overhead of traditional containerization
- Self-hostable with simple setup - run your own Faasta instance anywhere
- Standards-compliant with WASI P2 and WASIHTTP, making your functions portable
- Powered by Wasmtime for efficient WebAssembly execution
- Includes a free hosted instance at faasta.xyz
Install the Faasta CLI:
cargo install cargo-faastaCreate a new Faasta project:
cargo faasta init
# or
cargo faasta new my-functionBuild your function for WebAssembly:
cargo faasta buildLogin with your GitHub account:
cargo faasta loginDeploy your function:
cargo faasta deployYour function will be available at https://your-function-name.faasta.xyz
Faasta implements the WebAssembly System Interface (WASI) Preview 2 specification and the WASIHTTP standard to enable:
- Standardized HTTP request and response handling
- Component-based architecture for better modularity
- Consistent interface for interacting with the host system
- Portable functions that can run on any WASI P2 compatible runtime
Because Faasta uses these open standards, your functions are not locked to a specific platform and can be hosted anywhere that supports these standards.
Faasta is fully self-hostable. You can run your own instance of the Faasta server to host your functions on your own infrastructure.