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The most reliable way to build web3 apps

Powerful APIs, SDKs, and tools to build and scale your web3 app with ease.

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The complete
developer platform

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Supernode

Meet the web3 engine powering our suite of APIs. Read and write to the blockchain exactly as you want.

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Powerful write APIs for every use case

embedded accounts
Embedded Accounts
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Plug-n-play embedded wallets

Make wallets invisible. Simple, non-custodial accounts to onboard users and transact with web2 UX.

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// 1. Auth Your User const signer = new AlchemySigner({ client: { connection: { rpcUrl }, iframeConfig: { iframeContainerId: "alchemy-signer-iframe-container" }, }, }) signer.authenticate({ type: "email", email: "[email protected]", bundle }); // 2. Create an Account const account = await createMultiOwnerModularAccount({ transport, chain, signer, }); // 3. Use web3! account.signMessage({ message: "Hello, World!" });
Account Abstraction Infrastructure
Account Abstraction Infrastructure
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Smart contract wallet infra built for scale

ERC-4337 Bundler APIs. Gas Manager APIs. Account Abstraction SDK. Up to 35x cheaper than alternatives.

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npm init es6 -y npm install -save-dev typescript npm install @alchemy/aa-alchemy @alchemy/aa-accounts @alchemy/aa-core viem
Account Contracts
Account Contracts
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Smart contract accounts for every use case

Optimized ERC-4337 and ERC-6900 smart accounts on Ethereum and L2s.

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import { useAccount } from "@alchemy/aa-alchemy/react";
Transact
Transact
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Cheaper, faster, safer transactions

7.9x faster, 100% success rate. Transaction simulation, frontrunning protection, and real-time notifications.

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curl --request POST \ --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \ --header 'accept: application/json' \ --header 'content-type: application/json' \ --data ' { "method": "alchemy_sendGasOptimizedTransaction" } '
Transaction Simulation
Transaction Simulation
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Transaction previews for any use case

Transact with confidence. Preview how transactions will behave onchain, and keep your assets safe.

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curl --request POST \ --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \ --header 'accept: application/json' \ --header 'content-type: application/json' \ --data ' { "id": 1, "jsonrpc": "2.0", "method": "alchemy_simulateExecution", "params": [ { "from": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045", "to": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", "value": "0x0", "data": "0xa9059cbb000000000000000000000000fc43f5f9dd45258b3aff31bdbe6561d97e8b71de00000000000000000000000000000000000000000000000000000000000f4240" } ] } '

Reliable read APIs

Pipelines
Pipelines
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Blockchain data pipelines made easy

Save engineering time with fast backfills and reliable, real-time ingestion pipelines.

Subgraphs
Subgraphs
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Speedy indexing for custom GraphQL APIs

Ship faster with a custom API for your onchain data. Never worry about subgraph downtime or lag again.

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cd <SUBGRAPH_DIRECTORY> graph deploy <SUBGRAPH_NAME> \ --version-label <VERSION_NAME> \ --node https://subgraphs.alchemy.com/api/subgraphs/deploy \ --deploy-key <DEPLOY_KEY> --ipfs https://ipfs.satsuma.xyz
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NFT API
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Build any NFT application

The multichain API to launch, verify, analyze, trade and display NFTs.

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curl --request GET \ --url 'https://eth-mainnet.g.alchemy.com/nft/v3/docs-demo/getNFTsForOwner?owner=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&amp;withMetadata=true&amp;pageSize=100' \ --header 'accept: application/json'
Token API
Token API
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Token balances and metadata

The token data your users expect, no token list required. Available on all EVM-supported chains.

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curl --request POST \ --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \ --header 'accept: application/json' \ --header 'content-type: application/json' \ --data ' { "id": 1, "jsonrpc": "2.0", "method": "alchemy_getTokenBalances", "params": [ "0x95222290DD7278Aa3Ddd389Cc1E1d165CC4BAfe5", "erc20" ] } '
Custom Webhooks
Custom Webhooks
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Real-time data. Any blockchain event.

Infinite data access, precise filter controls.

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curl --request POST \ --url https://dashboard.alchemy.com/api/graphql/variables/variable \ --header 'content-type: application/json'
Transfers API
Transfers API
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Portfolio management, simplified

100x faster than others. One request to get all historical transaction activity, including internal transfers.

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curl --request POST \ --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \ --header 'accept: application/json' \ --header 'content-type: application/json' \ --data ' { "id": 1, "jsonrpc": "2.0", "method": "alchemy_getAssetTransfers", "params": [ { "fromBlock": "0x0", "toBlock": "latest", "toAddress": "0x5c43B1eD97e52d009611D89b74fA829FE4ac56b1", "withMetadata": false, "excludeZeroValue": true, "maxCount": "0x3e8" } ] } '
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Smart Websockets
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Blockchain connection for ongoing data

Scalable. Customizable. Easy to set up. Websocket notifications for web3 actions you care about.

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// initiate websocket stream first wscat -c wss://eth-mainnet.g.alchemy.com/v2/demo // then call subscription {"jsonrpc":"2.0","id": 1, "method": "eth_subscribe", "params": ["logs", {"address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}]}
Webhooks
Webhooks
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Real-time data for specific events

Fast, consistent push notifications. Zero missed updates. Massive savings.

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curl --request POST \ --url https://dashboard.alchemy.com/api/create-webhook \ --header 'accept: application/json' \ --header 'content-type: application/json' \ --data ' { "network": "ETH_MAINNET", "webhook_type": "GRAPHQL" } '
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Powering web3 growth

$1.5B+trading volume

"Working with Alchemy has helped us save the equivalent of 3 full-time engineers, who otherwise would have to be heads down on infra maintenance, at all times."

Evgeny Yurtaev

CEO & Co-founder
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3.5M+wallets integrated

Infrastructure that’s both reliable and scalable, so that we can stay up when our customers need us most - that’s huge for Collab.Land. Alchemy is the GOAT here.

Raymond Feng

CTO and Co-founder
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100k+users served

Alchemy's AA infra has played a crucial role in powering CyberAccount, contributing massively to our ability to serve hundreds of thousands of users in real time. Their team's quick response times and attention to detail have been fundamental to our success.

Ryan Li

Co-founder
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Alchemy SDK

Query blockchain data with two lines of code

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Account Abstraction SDK

Simplify account abstraction development

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Developer Tools

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Plans built for many teams

Developer-first pricing

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Web3’s most powerful free tier.


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Build blockchain magic

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