Don't have an API key? Start here before building with AI.
Across coding languages you'll find many great web3 libraries. In most cases the best place to start would be to consult the documentation of the web3 library you're using OR, as we'll recommend below, build with AI tools.
If you are starting from your favorite tool's documentation, look for JSON-RPC provider or client HTTP transport. That's where you'll configure your Alchemy URL.
You'll be pointing your library to your node, using Alchemy to host your nodes for you.
A fast way to get started is with something like Cursor or Claude Code as shown in this video:
Tell your AI tool to "write a script using ethers.js connected to Alchemy" and you'll be off to the races.
Keep in mind that the AI tool may not have the most recent documentation available, so it can be useful to tell it to consult the latest docs.
For all Alchemy docs you can scroll up to the top of the page and click "Copy Page" to get the info your AI tool needs to be up to date with the particular documentation.
So, what's next for you?
- Want to build an application using the latest and greatest web3 login experience? Check out getting started with our wallets.
- Need the industry best APIs to access blockchain data (tokens, transfers, nfts, prices and more)? Jump on over to our data APIs.
- Want to find all the methods available to you on our node API? Check out the documentation here.
- Need to learn more about crypto? We've got you covered at Alchemy University.