linera-protocol vs r55
Rust blockchain infrastructure compared
linera-protocol provides infrastructure for building and running decentralized applications on its own protocol, including nodes, clients, and a Wasm SDK. r55 extends an Ethereum execution environment to run RISC-V smart contracts alongside EVM contracts, focusing on experimental Rust contract execution.
linera-protocol: Build Scalable Web3 Applications
Linera is Rust-based infrastructure for building decentralized applications with low latency and high scalability. This repository includes the protocol, node and client software, and a Wasm application SDK for developers.
r55: Run Rust Smart Contracts Alongside EVM Contracts
R55 is an experimental Ethereum execution environment built on a fork of the Rust revm engine. It adds RISCV smart contracts written in no_std Rust alongside EVM contracts, sharing Ethereum state and communicating through ABI-encoded calls.
| linera-protocol | r55 | |
|---|---|---|
| Language | Rust | Rust |
| License | Apache-2.0 | Apache-2.0 |
| Stars | 32.1k | 350 |
| Forks | 2.4k | 36 |
| Last analyzed | Oct 3, 2026 | Oct 17, 2026 |
Key differences
- linera-protocol covers protocol operation and application development, while r55 focuses on adding RISC-V contract execution to Ethereum.
- linera-protocol targets applications written in Rust for its Wasm runtime; r55 supports `no_std` Rust contracts compiled for RISC-V.
- linera-protocol includes nodes, clients, chain and messaging components, and a CLI; r55 combines a contract compiler and runtime with a revm fork and RISC-V interpreter.
- linera-protocol is aimed at protocol contributors and developers building on Linera, while r55 targets Rust developers and Ethereum execution researchers exploring alternate execution paths.
- r55 describes itself as experimental and presents an ERC20 end-to-end proof of concept; linera-protocol describes broader protocol infrastructure and local network workflows.
- Both projects use Rust and Apache-2.0 licensing; linera-protocol lists 32.1k stars and 2.4k forks, while r55 lists 350 stars and 36 forks.
Choose linera-protocol if you…
- need infrastructure for operating a decentralized protocol, including nodes, clients, and chain components.
- want to build Rust applications for Linera's Wasm runtime or test chain interactions on a local network.
- plan to work on protocol areas such as storage, networking, execution, or cross-chain messaging.
Choose r55 if you…
- want to prototype `no_std` Rust smart contracts that run alongside EVM contracts over shared Ethereum state.
- are researching RISC-V execution or communication between RISC-V and EVM contracts through ABI-encoded calls.
- can assess an experimental environment and work with its RISC-V toolchain and custom revm-based components.
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This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.