Transactions2 CU

eth_getTransactionByHash on Unichain

Fetches a transaction's full details (from, to, value, input, gas) by its hash. Returns null if the transaction is unknown or still pending propagation.

Null covers both 'unknown' and 'still propagating', so treat it as 'not yet' and retry rather than 'never'. The blockNumber field stays null until the tx is mined — the cleanest pending-vs-mined check.

Unichain endpoint (public — no key)

https://rpc.nodeflare.app/unichain/public

Method

eth_getTransactionByHash

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

[txHash]

cURL

curl https://rpc.nodeflare.app/unichain/public \
  -X POST \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0x0000000000000000000000000000000000000000000000000000000000000000"],"id":1}'

ethers.js

import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider(
  'https://rpc.nodeflare.app/unichain/public'
);

const result = await provider.send('eth_getTransactionByHash', ["0x0000000000000000000000000000000000000000000000000000000000000000"]);

Try it live

Runs the example above against the public Unichain endpoint — straight from your browser.

eth_getTransactionByHash on Unichain — FAQ

How do I call eth_getTransactionByHash on Unichain?

POST a JSON-RPC 2.0 request with "method": "eth_getTransactionByHash" to NodeFlare's Unichain endpoint at https://rpc.nodeflare.app/unichain/public. No API key is required for the public endpoint.

What does eth_getTransactionByHash cost on the free tier?

eth_getTransactionByHash 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_getTransactionByHash calls per month — no credit card.

Is eth_getTransactionByHash available on the public Unichain endpoint?

Yes. eth_getTransactionByHash 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_getTransactionByHash?

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_getTransactionByHash 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 →