The web3 developer hub
View API References, guides, and tutorials for Ethereum, Polygon, Optimism, Arbitrum, Solana, Base, Starknet and Astar.
View docsdive into resources
Most popular
NFT API Quickstart
Easiest way to get NFT data from ownership to sales to metadata and more.
Ethereum API Quickstart
How to get started building on Ethereum and using the JSON-RPC API.
SDK Quickstart
The easiest way to connect your dApp to the blockchain using JavaScript.
alchemy_pendingTransactions
Subscribe to full transaction objects or hashes that are pending based on provided filters.
What are payable functions in Solidity?
Learn how payable functions work in Solidity.
How to get all NFTs owned by an address
Query all NFTs owned by a provided address in one line of code.
Alchemy University
Create Web3 Dapp
View all tutorials
API references for all chains
Including free Archive data on all chains and testnets.
Use case APIs
APIs built to optimize your code and make life as a developer way easier.
View all APIs
NFT API
Get all the NFT data you need with this suite of endpoints
Transact
Send transactions 7.9x faster
Token API
Get token valuable information to display to users
Transfers API
Get historical transactions for any address or contract
Notify API
Webhooks for transaction activity
AA Infra
ERC-4337 Bundler and Paymaster APIs
Trusted by the best in the industry
Community Driven
Join the web3 developer community
Get help with your product, meet other developers, and get access to a world-class community
