# Amazon Managed Blockchain Documentation

Amazon Managed Blockchain (AMB) helps you to easily create, manage, and access blockchain infrastructure using AMB Access and query data from supported public blockchain networks using AMB Query.

## Amazon Managed Blockchain Access

AMB Access gives you two distinct types of blockchain infrastructure services: dedicated blockchain network access API operations and dedicated blockchain nodes and networks. With dedicated blockchain infrastructure, you can create and use public Ethereum blockchain nodes and private Hyperledger Fabric blockchain networks for your own use. Serverless offerings such as AMB Access Bitcoin are composed of a fleet of Bitcoin nodes behind an API layer where the underlying blockchain node infrastructure is shared among AWS customers.

- [Hyperledger Fabric Developer Guide](/managed-blockchain/latest/hyperledger-fabric-dev/): Provides conceptual, instructional, and reference information for creating a network, joining a network, managing resources, and developing chaincode for Hyperledger Fabric by using Amazon Managed Blockchain.
- [Ethereum Developer Guide](/managed-blockchain/latest/ethereum-dev/): Provides conceptual, instructional, and reference information about working with nodes, using token-based access and invoking JSON-RPC requests on Ethereum networks by using Amazon Managed Blockchain.
- [API Reference for Amazon Managed Blockchain Access](/managed-blockchain/latest/APIReference/): Provides information about the Amazon Managed Blockchain Access API operations for Hyperledger Fabric, Ethereum, and Polygon, including working with Accessors for token-based access, sample requests, responses, and errors for the supported web services protocols.
- [Bitcoin Developer Guide](/managed-blockchain/latest/ambbtc-dg/): Provides conceptual, instructional, and reference information for using Amazon Managed Blockchain to quickly invoke JSON-RPC requests on demand on Bitcoin networks with serverless access.
- [Polygon Developer Guide](/managed-blockchain/latest/ambp-dg/): Provides conceptual, instructional, and reference information for using Amazon Managed Blockchain to quickly invoke JSON-RPC requests on demand on Polygon networks with serverless access.

## Amazon Managed Blockchain Query

Amazon Managed Blockchain (AMB) Query provides you with serverless access to standardized, multi-blockchain datasets with developer-friendly API operations. You can use AMB Query to quickly ship applications that require data from one or more public blockchains, without requiring the overhead to parse blockchain data, trace contracts, and maintain specialized indexing infrastructure. Whether you’re analyzing historical token balances for fungible tokens or non-fungible tokens (NFTs), viewing the transaction history for a given wallet address, or performing data analytics on the distribution of native cryptocurrencies such as Ether, AMB Query gives you access to the blockchain data you need.

- [Query Developer Guide](/managed-blockchain/latest/ambq-dg/): Provides conceptual, instructional, and reference information for querying supported blockchain networks by using Amazon Managed Blockchain.
- [API Reference for Amazon Managed Blockchain Query](/managed-blockchain/latest/AMBQ-APIReference/): Describes the API operations for Amazon Managed Blockchain Query, including sample requests, responses, and errors for the supported web services protocols.

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