What programming languages does Autheo support for smart contracts and dApps?

Autheo's engineering team designed the AEE runtime to be language-agnostic by specification — language support is a first-class architectural principle, not an afterthought.

Direct Answer

Autheo Chain is EVM-compatible, so any Solidity smart contract that runs on Ethereum runs on Autheo unchanged. Developers deploy with the same tools they already use, Remix, Hardhat, or Foundry. Because Autheo is built on Cosmos SDK, native chain modules like staking, governance, and IBC are also reachable directly through the autheod CLI or the REST and JSON-RPC APIs, giving developers two complementary ways to build.

Understand the broader Autheo platform

This answer covers one part of the Autheo ecosystem. To understand how this capability fits into the full platform, start with the core Autheo overview and architecture pages.

Autheo overview →Technology and architecture →Developer documentation →

EVM Compatibility: Solidity Contracts Run Unchanged

Autheo Chain is EVM-compatible. Solidity contracts that already run on Ethereum run on Autheo without modification, and the same tooling developers already know works out of the box: Remix for quick prototyping, Hardhat for scripted development and testing, and Foundry for fast, Rust-based testing and deployment. There is no separate Autheo-specific contract language to learn. If a team can write and test a Solidity contract for Ethereum, they can deploy that same contract to Autheo.

Cosmos SDK: Native Chain Modules Beyond the EVM

Autheo is built on Cosmos SDK, which means the chain exposes native modules, staking, governance, and IBC (Inter-Blockchain Communication) among them, that live outside the EVM layer. Developers reach these modules directly through the autheod CLI or through REST and JSON-RPC APIs. This gives builders two complementary paths: standard Solidity contracts for application logic, and direct module access for chain-level functionality like validator staking or cross-chain messaging via IBC.

Where Go Fits In

Go is used to build the autheod node client itself from source, it is not a smart contract language on Autheo. Developers running or building the node software will work with Go, but application and contract logic is written in Solidity and deployed through the standard EVM toolchain described above. Full setup and API details are available in Autheo's developer documentation at docs.autheo.com/developers/overview.

Key Statistics

28M+

Rust developers globally

Stack Overflow Developer Survey 2024 reports over 28 million Rust practitioners worldwide — a primary language in Autheo's runtime.

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83%

WASM cloud adoption growth

WebAssembly usage in server-side and cloud runtimes grew 83% between 2022 and 2024, according to the CNCF Annual Survey.

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~90%

Ethereum contracts in Solidity

Approximately 90% of deployed Ethereum smart contracts are written in Solidity, reflecting the large developer base Autheo's EVM adapter targets.

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Expert Perspective

“
WebAssembly is the portable, efficient, and safe low-level code format for the web and beyond — enabling deployment across environments and languages at near-native speed.
W3C WebAssembly Working GroupW3C Specification↗