Cronos is a public, open-source, EVM-compatible blockchain launched by Crypto.com in 2021. Built with the Cosmos SDK and Ethermint, Cronos runs in parallel to the Crypto.org Chain and lets developers deploy Ethereum-based smart contracts and dApps with low fees and fast finality, using $CRO as its native gas token.
The Cronos API lets you interact with the Cronos network through a set of JSON-RPC methods. It supports operations such as smart contract deployment, transaction processing, and data retrieval, so you can integrate Cronos functionality into your applications.
For a step-by-step guide, check out the Cronos API Quickstart.
Yes, Cronos is EVM-compatible. You can deploy Ethereum-based smart contracts and applications on the Cronos network and reuse existing Ethereum development tools and workflows.
Cronos uses the JSON-RPC API standard, the same standard used across the Ethereum ecosystem. This provides a familiar and efficient interface for blockchain interactions.
When you access the Cronos network through a node provider like Alchemy, you use an API key to send transactions and retrieve data. An API key ensures secure and authenticated access to the network.
For the best development experience, we recommend that you sign up for a free API key.
As an EVM-compatible chain, Cronos supports popular Ethereum libraries such as viem, ethers.js, and web3.js. You can reuse existing tooling and knowledge when building on Cronos.
Cronos supports Solidity for smart contract development due to its EVM compatibility. For offchain interactions, you can use JavaScript, TypeScript, or other common web development languages.
Cronos uses $CRO as its native gas token. You need $CRO to pay for transaction fees on the network.
You can find the full list of methods supported by Alchemy for the Cronos API on the Cronos API Endpoints page.
If you have any questions or feedback, contact us at [email protected] or open a ticket in the Alchemy Dashboard.