Don’t have an API key?

Getting Started Instructions

1. Choose a package manager (npm or yarn)

For this guide, we will be using npm or yarn as our package manager to install either alchemy-sdk or any other packages.

npm

To get started with npm, follow the documentation to install Node.js and npm for your operating system: https://docs.npmjs.com/downloading-and-installing-node-js-and-npm

yarn

To get started with yarn, follow these steps: https://classic.yarnpkg.com/lang/en/docs/install

2. Set up your project (npm or yarn)

mkdir alchemy-astar-api
cd alchemy-astar-api
npm init --yes

3. Install Alchemy-SDK

Run the following command to install the Alchemy SDK with npm or yarn.

npm install alchemy-sdk

4. Make your first request

You are all set now to use Astar API and make your first request. For instance, lets make a request to get latest block. Create an index.js file and paste the following code snippet into the file.

index.js

1 const { Network, Alchemy } = require("alchemy-sdk");
2 
3 // Optional Config object, but defaults to demo api-key and eth-mainnet.
4 const settings = {
5   apiKey: "demo", // Replace with your Alchemy API Key.
6   network: Network.ASTAR_MAINNET, // Replace with your network.
7 };
8 
9 const alchemy = new Alchemy(settings);
10 
11 async function main() {
12   const latestBlock = await alchemy.core.getBlockNumber();
13   console.log("The latest block number is", latestBlock);
14 }
15 
16 main();