Connect to Celo, the EVM-compatible blockchain built for mobile-first DeFi and payments. Ultra-low fees, stablecoin support, and real-world impact through financial inclusion.
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Technical characteristics and available endpoints
Mainnet & Testnet Support — Alfajores
Celo is a mobile-first, carbon-negative blockchain platform focused on increasing cryptocurrency adoption among smartphone users. With built-in stablecoin support (cUSD, cEUR, cREAL) and phone number-based addresses, Celo makes DeFi accessible to anyone with a mobile phone, targeting financial inclusion in emerging markets.
https://rpc.crypto-chief.com/celo/{YOUR_API_KEY}
wss://rpc.crypto-chief.com/celo/ws/{YOUR_API_KEY}
Replace {YOUR_API_KEY} with your actual API key from the dashboard.
Access the mobile-first blockchain ecosystem
A Celo RPC node provides applications with access to the Celo blockchain, enabling mobile payments, DeFi operations, and stablecoin transfers optimized for smartphone users in emerging markets. Celo's unique architecture prioritizes mobile accessibility and financial inclusion.
Celo takes a unique approach to blockchain by prioritizing mobile accessibility and real-world utility over pure DeFi speculation. With native stablecoins, phone number addresses, and carbon-negative operations, Celo aims to bring cryptocurrency to the next billion users through their smartphones.
Celo advantages:
Celo uses a Proof of Stake consensus mechanism with Istanbul BFT for fast finality. The network's unique design allows smartphones to run light clients, enabling true mobile-first DeFi without requiring powerful hardware or large bandwidth.
Technical highlights:
HTTPS endpoints handle standard operations — balance queries, stablecoin transfers, contract calls, and mobile wallet operations.
WebSocket endpoints enable real-time payment notifications, exchange rate updates, and live transaction monitoring for mobile applications.
Quick start for developers
Celo supports standard Ethereum JSON-RPC methods with some Celo-specific extensions:
const { ethers } = require('ethers');
const provider = new ethers.JsonRpcProvider('https://rpc.crypto-chief.com/celo/YOUR_API_KEY');
// Verify Celo network
const network = await provider.getNetwork();
console.log('Chain ID:', network.chainId); // 42220
// Get CELO balance
const balance = await provider.getBalance('0x...');
console.log('CELO:', ethers.formatEther(balance));
// Check cUSD balance (Celo stablecoin)
const cUSD_ADDRESS = '0x765DE816845861e75A25fCA122bb6898B8B1282a';
const erc20ABI = ['function balanceOf(address) view returns (uint256)'];
const cUSD = new ethers.Contract(cUSD_ADDRESS, erc20ABI, provider);
const cUsdBalance = await cUSD.balanceOf('0x...');
console.log('cUSD:', ethers.formatUnits(cUsdBalance, 18));from web3 import Web3
w3 = Web3(Web3.HTTPProvider('https://rpc.crypto-chief.com/celo/YOUR_API_KEY'))
print('Connected to Celo:', w3.is_connected())
print('Chain ID:', w3.eth.chain_id) # 42220
# cUSD contract
cUSD_ADDRESS = '0x765DE816845861e75A25fCA122bb6898B8B1282a'
cUSD_ABI = [{'constant':True,'inputs':[{'name':'_owner','type':'address'}],'name':'balanceOf','outputs':[{'name':'balance','type':'uint256'}],'type':'function'}]
cUSD = w3.eth.contract(address=cUSD_ADDRESS, abi=cUSD_ABI)
balance = cUSD.functions.balanceOf('0x...').call()
print(f'cUSD balance: {balance / 1e18}')const { ethers } = require('ethers');
const provider = new ethers.WebSocketProvider('wss://rpc.crypto-chief.com/celo/ws/YOUR_API_KEY');
// Monitor cUSD transfer events
const cUSD_ADDRESS = '0x765DE816845861e75A25fCA122bb6898B8B1282a';
const filter = {
address: cUSD_ADDRESS,
topics: [ethers.id('Transfer(address,address,uint256)')]
};
provider.on(filter, (log) => {
console.log('cUSD transfer:', log);
});
// Monitor new blocks
provider.on('block', (blockNumber) => {
console.log('New Celo block:', blockNumber);
});Reliable infrastructure for Celo applications
Infrastructure optimized for mobile wallet integrations with low-bandwidth friendly responses and efficient data delivery.
Enterprise-grade security with TLS encryption, DDoS protection, and consistent uptime for production mobile applications.
Monitor all RPC metrics including request volume, method distribution, response times, and error tracking.
Nodes deployed globally with focus on emerging markets where Celo adoption is highest — Africa, Latin America, Southeast Asia.
Supporting Celo's environmental mission through efficient infrastructure and renewable energy commitments.
24/7 support from engineers familiar with mobile-first blockchain challenges and Celo ecosystem specifics.
Build financial inclusion apps on Celo
Celo's mobile-first design and stablecoin support make it ideal for payments, remittances, and DeFi applications targeting users in emerging markets. Our infrastructure supports apps bringing cryptocurrency to the next billion users.
Build Venmo-like payment apps using cUSD for price stability. Our infrastructure enables instant transfers, balance checks, and payment notifications optimized for mobile connections.
Enable low-cost international money transfers using Celo stablecoins. Our reliable RPC access ensures smooth transactions for users sending money across borders.
Create smartphone wallets with phone number-based addresses and multi-currency support. Our light client-friendly infrastructure ensures smooth mobile experience.
Launch savings, lending, and microfinance protocols targeting underbanked populations. Low fees and stablecoins make DeFi accessible to everyone.
Build point-of-sale systems accepting cryptocurrency payments via mobile. Instant settlement and price-stable cUSD reduce merchant friction.
Create apps for universal basic income, cash transfers, and humanitarian aid distribution leveraging Celo's transparent and efficient blockchain.
Start building on Web3 — no credit card.
Flexible pay-as-you-go for any workload.
From $500 monthly plus 20% extra value.
Tailored solution for expert builders
All Subscription features plus: