# Using Ethereum APIs with Amazon Managed Blockchain (AMB)
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Amazon Managed Blockchain (AMB) provides API operations for creating and managing token accessors, nodes, and networks for AMB Access Ethereum. For more information, see the * [AMB Access API Reference Guide](https://docs.aws.amazon.com/managed-blockchain/latest/APIReference/Welcome.html) *.

The following section provides a list and reference of the Ethereum (JSON-RPC and Consensus) API methods that Amazon Managed Blockchain (AMB) supports. It also includes code examples that implement API calls from clients using either HTTP or WebSocket (JSON-RPC API only) connections.

You use the Ethereum API from a client to query smart contract data and submit transactions to an Ethereum node on Amazon Managed Blockchain (AMB). You use the Ethereum Consensus API from a client to query the Beacon chain, its configuration, and the node health. For more information, see [Viewing node details](ethereum-nodes.md#ethereum-node-information).

**Execution and consensus client support**

The Ethereum Merge transitioned the Ethereum blockchain to a proof-of-stake consensus, and it resulted in a new modular design for Ethereum. After the Merge, the original Ethereum stack forked into two distinct layers: the execution layer and the consensus layer. There are many different client implementations for both of these layers; however, Amazon Managed Blockchain (AMB) provides a fully managed Ethereum node that uses the *GoEthereum (Geth)* execution client and the *Lighthouse* consensus client. 

**Topics**
+ [Supported JSON-RPC methods](supported-json-rpc.md)
+ [Supported Consensus API methods](supported-consensus-apis.md)