Superseed API Quickstart

How to get started building on Superseed using Alchemy
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The Superseed API allows developers to interact with the Superseed blockchain using standard JSON-RPC methods. With this API, you can retrieve block and transaction data, send transactions, and build applications powered by Superseed’s high-throughput, EVM-compatible environment.

The Superseed Chain API facilitates interaction with the Superseed network through a collection of JSON-RPC methods. Given its compatibility with the Ethereum ecosystem, developers familiar with Ethereum’s JSON-RPC APIs will find working with Superseed both intuitive and straightforward.

Send Your First Request on Alchemy

Let’s use the viem package to create a Superseed client connected to Alchemy and fetch the latest block number!

npm install --save viem

Create Client Connected to Alchemy

1import { createPublicClient, http, defineChain } from "viem";
2
3const superseed = defineChain({
4 id: 5330,
5 name: "Superseed",
6 nativeCurrency: { name: "ETH", symbol: "ETH", decimals: 18 },
7 rpcUrls: {
8 default: { http: ["https://superseed-mainnet.g.alchemy.com/v2/YOUR_ALCHEMY_API_KEY"] },
9 },
10});
11
12const client = createPublicClient({
13 chain: superseed,
14 transport: http("https://superseed-mainnet.g.alchemy.com/v2/YOUR_ALCHEMY_API_KEY"),
15});

Now that you’ve created a client connected to Alchemy, you can continue with some basics:

Get Latest Block Number

1const blockNumber = await client.getBlockNumber();
2console.log("Current block number:", blockNumber);

Get an Address Balance

1const balance = await client.getBalance({ address: "0xab5801a7d398351b8be11c439e05c5b3259aec9b" });
2console.log("Balance (ETH):", Number(balance) / 1e18);

Read Block Data

1const block = await client.getBlock({
2 blockNumber: blockNumber, // from previous example
3});
4console.log(block);

Fetch a Transaction by Hash

1const tx = await client.getTransaction({ hash: "0xYOUR_TX_HASH" });
2console.log(tx);

Fetch Transaction Receipt

1const receipt = await client.getTransactionReceipt({
2 hash: "0xYOUR_TX_HASH"
3});
4console.log(receipt);

Superseed APIs

For the full list of Superseed APIs, see the Superseed API Endpoints.