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How to Add Core RPC URL into We3 Wallet — Complete Guide

The Core blockchain is one of the fastest-growing EVM-compatible networks, designed to combine Bitcoin’s security with Ethereum’s smart contract capabilities.
If you’re a developer or a crypto enthusiast, you’ll eventually need to connect to the Core RPC — the Remote Procedure Call interface that lets you read blockchain data, send transactions, and interact with smart contracts.

Running your own node can be complex and expensive. The simplest way to connect is by using NOWNodes — a trusted blockchain API provider offering instant, reliable RPC access to over a hundred networks, including Core.

Why Use NOWNodes for Core

NOWNodes gives you access to Core RPC endpoints without any node setup.
You get a ready-to-use URL that works in wallets, dApps, scripts, or backend integrations — all with high uptime, fast response speed, and scalable access.

Once you create a free account on NOWNodes, you’ll get your personal API key. With that key, you can make RPC requests directly to the Core blockchain — no configuration or sync time required.

Connecting to Core RPC via NOWNodes

To get started, log in to your NOWNodes dashboard and find Core among the supported networks. Copy the RPC endpoint — it will look like this:

https://core.nownodes.io/

You’ll also need your API key, which authenticates your requests.

Now, you can send an RPC call using curl from your terminal or command line.
Here’s a real example that asks the blockchain for the latest block number:

curl -L \
  --request POST \
  --url 'https://core.nownodes.io/' \
  --header 'api-key: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "jsonrpc": "2.0",
    "method": "eth_blockNumber",
    "params": [],
    "id": 1
  }'

This simple command sends a JSON-RPC request to the Core node through NOWNodes.
If everything is set up correctly, you’ll receive a response like this:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x10d4f"
}

The "result" field contains the current block number — returned in hexadecimal format.

How It Works

NOWNodes acts as a gateway between your application and the Core blockchain.
Each time you send an RPC request — whether it’s to check balances, read contract data, or broadcast transactions — your app communicates with the Core node hosted by NOWNodes.

Because the service maintains fully synchronized Core nodes, you always get accurate and up-to-date data, without delays or downtime.

Conclusion

Adding the Core RPC URL using NOWNodes is one of the fastest ways to access the Core blockchain.
You don’t need to worry about node setup, synchronization, or uptime — just get your API key, use the ready RPC endpoint, and start building.

Whether you’re experimenting with smart contracts, integrating a Web3 app, or simply exploring the Core ecosystem, NOWNodes gives you everything you need — fast, stable, and developer-friendly.

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