eth_getTransactionCount on Sonic
Returns the number of transactions sent from an address — i.e. the next nonce to use. Use the "pending" tag to account for in-flight transactions.
The latest tag counts only mined txs; pending includes in-flight ones — always use pending to pick the next nonce or you'll collide with your own unconfirmed transactions.
Sonic endpoint (public — no key)
https://rpc.nodeflare.app/sonic/publicMethod
eth_getTransactionCount
Cost
2 CU
Chain ID
146
Block time
~1 s
Finality
~1 s (aBFT, irreversible)
Transactions on Sonic
Transactions confirm and finalize in roughly a second. There's no need for multi-confirmation waits; a receipt means done.
Parameters
[address, blockNumber|tag]cURL
curl https://rpc.nodeflare.app/sonic/public \
-X POST \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x0000000000000000000000000000000000000000", "latest"],"id":1}'ethers.js
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(
'https://rpc.nodeflare.app/sonic/public'
);
const result = await provider.send('eth_getTransactionCount', ["0x0000000000000000000000000000000000000000", "latest"]);Try it live
Runs the example above against the public Sonic endpoint — straight from your browser.
eth_getTransactionCount on Sonic — FAQ
How do I call eth_getTransactionCount on Sonic?
POST a JSON-RPC 2.0 request with "method": "eth_getTransactionCount" to NodeFlare's Sonic endpoint at https://rpc.nodeflare.app/sonic/public. No API key is required for the public endpoint.
What does eth_getTransactionCount cost on the free tier?
eth_getTransactionCount 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_getTransactionCount calls per month — no credit card.
Is eth_getTransactionCount available on the public Sonic endpoint?
Yes. eth_getTransactionCount works on the public Sonic endpoint (https://rpc.nodeflare.app/sonic/public) with no API key, rate-limited per IP. A free key adds higher limits and a dedicated path.
Anything Sonic-specific to know when using eth_getTransactionCount?
Transactions confirm and finalize in roughly a second. There's no need for multi-confirmation waits; a receipt means done.
Call eth_getTransactionCount on Sonic with a free key
2,000,000 compute units/month, heavy methods unlocked, every chain included. No credit card.
Get your free API key →eth_getTransactionCount on other chains