# Alchemy ** [Alchemy](https://www.alchemy.com/) is a powerful blockchain developer platform providing a suite of developer tools. It empowers companies to build scalable and reliable decentralized applications without the hassle of managing blockchain infrastructure in-house. So far we often use it as a node provider in our projects. ## Supported Chains of Alchemy * Ethereum * Polygon * Solana * Arbitrum * Optimism * AStar * Starknet ## Core Products of Alchemy ### Alchemy Supernode The [Alchemy Supernode](https://www.alchemy.com/supernode) is one of the most commonly used Ethereum APIs, featuring all the functionalities of a node. We usually use this in our project. However, the Supernode provides assurance of better data correctness, scalability, and reliability [Practice Example - Create and Use Alchemy Key](https://docs.alchemy.com/docs/alchemy-quickstart-guide) ### Alchemy Monitor [Alchemy Monitor](https://www.alchemy.com/monitor) is a comprehensive suite of dashboards and alerts for app health, performance, and user behavior ### Alchemy Notify [Alchemy Notify](https://www.alchemy.com/notify) allows developers to send real-time push notifications to users for critical events. Get started free today! [Practice Example - How to Create a Whale Alert Discord Bot](https://docs.alchemy.com/docs/how-to-create-a-whale-alert-discord-bot) ### Alchemy SDK The [Alchemy SDK](https://www.alchemy.com/sdk) is the most comprehensive, stable, and powerful Javascript SDK available today to interact with the blockchain.It extends Ethers.js provider, allowing you to access all the node methods you already know. [Practice Example](https://docs.alchemy.com/reference/using-the-alchemy-sdk) ### Alchemy Build [Alchemy Build](https://www.alchemy.com/build) is a no-configuration in-house suite of developer tools to prototype, debug, and ship products faster Some of the notable features of Alchemy Build include the Explorer, Debug Toolkit, Composer, and Mempool Visualizer ### Alchemy Composer Alchemy's [Composer](https://www.alchemy.com/composer) lets you instantly test new methods, fix failing requests, explore new methods on any ethereum network, and easily share with collaborators. ### Alchemy Transact The [Alchemy Transact](https://www.alchemy.com/transact) product suite includes APIs and enhanced functionality to make your transactions faster, cheaper and more reliable. ### Alchemy Spearmint The [Spearmint](https://spearmint.xyz/) are Tools for NFT creators to get started fast. Maximum control, minimum overhead. Totally free. ### Alchemy APIs Alchemy provides a suite of web3 APIs that dramatically simplify and optimize common request patterns to make your life as a developer easier. [API Reference](https://docs.alchemy.com/reference/api-overview) #### NFT API Like Raymond Feng said: "Alchemy’s [NFT API](https://www.alchemy.com/nft-api) will allow us to be the token verification system for every web3 community in the world - so we can quickly, accurately and reliably query NFT metadata, and our customers can create meaningful shared experiences for their users." [NFT API QuickStart](https://docs.alchemy.com/reference/nft-api-quickstart) #### Transact API [Alchemy Transact](https://www.alchemy.com/transact) is a suite of APIs and tools built to make your blockchain transactions faster, cheaper and more reliable. [Transact Quickstart](https://docs.alchemy.com/reference/transact-api-quickstart) #### Transfers API The Transfers API allows you to easily fetch historical transactions for any address without having to scan the entire chain and index everything for each of your users. [Transfers API Quickstart](https://docs.alchemy.com/reference/transfers-api-quickstart) #### Transaction Receipts API An enhanced api that gets all transaction receipts for a given block by number or block hash. Supported on all networks for Ethereum, Polygon, and Arbitrum. [getTransactionReceipts](https://docs.alchemy.com/reference/alchemy-gettransactionreceipts) #### Token API The Token API could enable an easier process for requesting information regarding particular tokens, such as wallet balances or metadata. [Token API Quickstart](https://docs.alchemy.com/reference/token-api-quickstart) #### Notify API The [Notify](https://www.alchemy.com/notify) API manages transaction notifications using webhooks. [Notify API Quickstart](https://docs.alchemy.com/reference/notify-api-quickstart) #### Trace API The Trace API provides insights into transaction processing and on-chain activity. [Trace API Quickstart](https://docs.alchemy.com/reference/trace-api-quickstart) #### Debug APIs The Debug API provides deeper insights into transaction processing and on-chain activity. You can use then to get more detailed information and data on transaction behavior. [Debug API Quickstart](https://docs.alchemy.com/reference/debug-api-quickstart) #### Subscription API Subscribe to pending transactions, log events, new blocks and more using WebSockets on Ethereum, Polygon, Arbitrum, and Optimism. [Subscription API Quickstart](https://docs.alchemy.com/reference/subscription-api)