eth_getBalance on Cronos
Returns the native-token balance (in wei) of an address at a given block. The standard way to read a wallet's balance.
This returns the native coin only — for ERC-20 balances use eth_call against the token's balanceOf. Pass an explicit block number for point-in-time reads; latest moves every block.
Cronos endpoint (public — no key)
https://rpc.nodeflare.app/cronos/publicMethod
eth_getBalance
Cost
2 CU
Chain ID
25
Block time
~0.5 s
Finality
~1 s (instant, no reorgs)
Accounts & state on Cronos
Cronos runs the EVM inside a Cosmos-SDK chain (Ethermint lineage). At the JSON-RPC layer everything behaves as standard EVM; Cosmos-side accounts map 1:1 to EVM addresses.
Parameters
[address, blockNumber|tag]cURL
curl https://rpc.nodeflare.app/cronos/public \
-X POST \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0xc21223249ca28397b4b6541dffaecc539bff0c59", "latest"],"id":1}'The example targets the USDC contract on Cronos — you can run it as-is.
ethers.js
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(
'https://rpc.nodeflare.app/cronos/public'
);
const result = await provider.send('eth_getBalance', ["0xc21223249ca28397b4b6541dffaecc539bff0c59", "latest"]);Try it live
Runs the example above against the public Cronos endpoint — straight from your browser.
eth_getBalance on Cronos — FAQ
How do I call eth_getBalance on Cronos?
POST a JSON-RPC 2.0 request with "method": "eth_getBalance" to NodeFlare's Cronos endpoint at https://rpc.nodeflare.app/cronos/public. No API key is required for the public endpoint.
What does eth_getBalance cost on the free tier?
eth_getBalance is weighted at 2 compute units per call. The free tier includes 2,000,000 CU/month, so that is roughly 1,000,000 eth_getBalance calls per month — no credit card.
Is eth_getBalance available on the public Cronos endpoint?
Yes. eth_getBalance works on the public Cronos endpoint (https://rpc.nodeflare.app/cronos/public) with no API key, rate-limited per IP. A free key adds higher limits and a dedicated path.
Anything Cronos-specific to know when using eth_getBalance?
Cronos runs the EVM inside a Cosmos-SDK chain (Ethermint lineage). At the JSON-RPC layer everything behaves as standard EVM; Cosmos-side accounts map 1:1 to EVM addresses.
Call eth_getBalance on Cronos with a free key
2,000,000 compute units/month, heavy methods unlocked, every chain included. No credit card.
Get your free API key →