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World Mobile Chain API Quickstart

How to get started building on World Mobile Chain using Alchemy
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World Mobile Chain is an EVM-compatible Layer-3 built on Base for decentralized telecom (DePIN), where EarthNodes secure the network and process telco data to deliver fast, low-cost onchain services.

The World Mobile Chain API allows interaction with the World Mobile Chain network through a set of JSON-RPC methods. Its design is familiar to developers who have worked with Ethereum’s JSON-RPC APIs, making it intuitive and straightforward to use.

Send Your First Request on Alchemy

Let’s use the viem package to create a World Mobile Chain 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 worldMobileChain = defineChain({
4 id: 2049,
5 name: "World Mobile Chain",
6 nativeCurrency: { name: "WMT", symbol: "WMT", decimals: 18 },
7 rpcUrls: {
8 default: { http: ["https://worldmobilechain-mainnet.g.alchemy.com/v2/YOUR_ALCHEMY_API_KEY"] },
9 },
10});
11
12const client = createPublicClient({
13 chain: worldMobileChain,
14 transport: http("https://worldmobilechain-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 (WMT):", 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);

World Mobile Chain APIs

For the full list of World Mobile Chain APIs, see the World Mobile Chain API Endpoints.