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Getting Started

Welcome to Dwellir's API platform. This guide helps you create an API key and make your first request in minutes.

1. Sign Up and Create an API Key​

  1. Go to dashboard.dwellir.com and sign up
  2. Navigate to the API Keys section
  3. Click "Create API Key" to generate your first key
  4. Copy your API key (format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)

2. Choose a Network​

Select from 140+ supported networks. Popular choices include:

  • Ethereum: ethereum-mainnet
  • Base: base-mainnet
  • Arbitrum: arbitrum-one
  • Polygon: polygon-mainnet
  • Polkadot: polkadot

See the full list in Supported Chains.

3. Make Your First Request​

The API key is included directly in the URL. No Authorization header needed!

Using cURL​

curl -X POST \
  -H "Content-Type: application/json" \
  https://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_blockNumber",
    "params": [],
    "id": 1
  }'

Example with endpoint format​

curl -X POST \
  -H "Content-Type: application/json" \
  https://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_blockNumber",
    "params": [],
    "id": 1
  }'

4. Use an SDK​

Web3.js​

const Web3 = require('web3');

// API key is in the URL, no auth header needed
const web3 = new Web3('https://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY');

// Make requests
const blockNumber = await web3.eth.getBlockNumber();
console.log('Latest block:', blockNumber);

// Get balance
const balance = await web3.eth.getBalance('0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb');
console.log('Balance:', web3.utils.fromWei(balance, 'ether'), 'ETH');

Ethers.js​

import { JsonRpcProvider } from 'ethers';

// API key is in the URL, no auth header needed
const provider = new JsonRpcProvider(
  'https://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY'
);

// Make requests
const blockNumber = await provider.getBlockNumber();
console.log('Latest block:', blockNumber);

// Get balance
const balance = await provider.getBalance('0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb');
console.log('Balance:', ethers.formatEther(balance), 'ETH');

WebSocket Connection​

const WebSocket = require('ws');

const ws = new WebSocket('wss://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY');

ws.on('open', () => {
  // Subscribe to new blocks
  ws.send(JSON.stringify({
    jsonrpc: '2.0',
    method: 'eth_subscribe',
    params: ['newHeads'],
    id: 1
  }));
});

ws.on('message', (data) => {
  const response = JSON.parse(data);
  console.log('New block:', response);
});

5. Configure API Quotas​

Protect yourself from unexpected usage by setting quotas on your API keys:

  1. Go to dashboard.dwellir.com/api-keys
  2. Click the edit icon next to your API key
  3. In the Edit API key dialog:
    • Name: Give your key a descriptive name
    • Daily quota: Toggle and set daily request limit
    • Monthly quota: Toggle and set monthly request limit
  4. Click "Update API Key" to save changes

When a quota is reached, the API will return a 429 error until the quota resets.

6. Monitor Your Usage​

Track your API usage in real-time:

  1. Go to dashboard.dwellir.com/usage
  2. View metrics:
    • Total requests
    • Requests by method
    • Requests by network
    • Response times
    • Error rates

Set up alerts to notify you when approaching limits.

7. Best Practices​

Error Handling​

async function makeRequest() {
  try {
    const blockNumber = await web3.eth.getBlockNumber();
    return blockNumber;
  } catch (error) {
    if (error.code === 429) {
      console.log('Rate limit exceeded, retry after delay');
      // Implement exponential backoff
    } else {
      console.error('Request failed:', error);
    }
  }
}

Connection Pooling​

// Reuse provider instances
const providers = {
  ethereum: new Web3('https://api-ethereum-mainnet.n.dwellir.com/YOUR_API_KEY'),
  polygon: new Web3('https://api-polygon-mainnet.n.dwellir.com/YOUR_API_KEY'),
  arbitrum: new Web3('https://api-arbitrum-one.n.dwellir.com/YOUR_API_KEY')
};

// Use the same provider for multiple requests
async function getMultiChainData() {
  const ethBlock = await providers.ethereum.eth.getBlockNumber();
  const polyBlock = await providers.polygon.eth.getBlockNumber();
  const arbBlock = await providers.arbitrum.eth.getBlockNumber();
  
  return { ethBlock, polyBlock, arbBlock };
}

Batch Requests​

// Batch multiple calls into one request
const batch = new web3.BatchRequest();

batch.add(web3.eth.getBlockNumber.request((err, res) => {
  console.log('Block number:', res);
}));

batch.add(web3.eth.getGasPrice.request((err, res) => {
  console.log('Gas price:', res);
}));

batch.execute();

Quick Reference​

Endpoint Format​

https://api-{network}.n.dwellir.com/{YOUR_API_KEY}
wss://api-{network}.n.dwellir.com/{YOUR_API_KEY}

Common Networks​

  • Ethereum: api-ethereum-mainnet
  • Base: api-base-mainnet
  • Arbitrum: api-arbitrum-one
  • Optimism: api-optimism-mainnet
  • Polygon: api-polygon-mainnet
  • BSC: api-bsc-mainnet
  • Avalanche: api-avalanche-c-chain

Need Help?​

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