eth_getTransactionCount on Unichain
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.
Unichain endpoint (public — no key)
https://rpc.nodeflare.app/unichain/publicMethod
eth_getTransactionCount
Cost
2 CU
Chain ID
130
Block time
~1 s
Finality
~1 s soft · L1-final ~13 min
Transactions on Unichain
Unichain is Uniswap Labs' OP-Stack rollup: transactions pay L2 execution plus an L1 data fee, and the receipt's l1Fee fields carry the data component. Sub-second inclusion is the norm.
Parameters
[address, blockNumber|tag]cURL
curl https://rpc.nodeflare.app/unichain/public \
-X POST \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x078d782b760474a361dda0af3839290b0ef57ad6", "latest"],"id":1}'The example targets the USDC contract on Unichain — you can run it as-is.
ethers.js
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(
'https://rpc.nodeflare.app/unichain/public'
);
const result = await provider.send('eth_getTransactionCount', ["0x078d782b760474a361dda0af3839290b0ef57ad6", "latest"]);Try it live
Runs the example above against the public Unichain endpoint — straight from your browser.
eth_getTransactionCount on Unichain — FAQ
How do I call eth_getTransactionCount on Unichain?
POST a JSON-RPC 2.0 request with "method": "eth_getTransactionCount" to NodeFlare's Unichain endpoint at https://rpc.nodeflare.app/unichain/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 Unichain endpoint?
Yes. eth_getTransactionCount works on the public Unichain endpoint (https://rpc.nodeflare.app/unichain/public) with no API key, rate-limited per IP. A free key adds higher limits and a dedicated path.
Anything Unichain-specific to know when using eth_getTransactionCount?
Unichain is Uniswap Labs' OP-Stack rollup: transactions pay L2 execution plus an L1 data fee, and the receipt's l1Fee fields carry the data component. Sub-second inclusion is the norm.
Call eth_getTransactionCount on Unichain 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