eth_getBlockByNumber on Manta Pacific
Everything below was measured on 2026-10-13 by calling eth_getBlockByNumber on Manta Pacific through the same endpoint customers use, and is re-measured weekly.
What eth_getBlockByNumber does
Returns a block by number or tag (latest, safe, finalized, pending, earliest): the header, and either the transaction hashes or the full transactions. Indexers, explorers and wallets use it to follow the chain.
eth_getBlockByNumber on Manta Pacific: what we measured
| Header fields | 26 |
|---|---|
| Transactions per block | 7, 7, 4, 3, 3 in five consecutive blocks |
| Response size, full transactions (true) | 5.7 KB average |
| Response size, hashes only (false) | 2.2 KB |
| Gas limit | 50,000,000 |
| Gas used in the latest block | 7,046,889 (14.1% of the limit) |
| Base fee | 326 wei |
| Tag "safe" | block 9,767,165 |
| Tag "finalized" | block 9,766,465 |
| Tag "pending" | block 9,767,186 |
| Tag "earliest" | block 0 |
What is different on Manta Pacific
The header includes the fields added by London (EIP-1559 base fee), Shanghai (withdrawals), Cancun (EIP-4844 blob gas), Cancun (EIP-4788 beacon root), Prague (EIP-7685 requests). Code that assumes Ethereum's current header shape will parse it as is.
Asking for full transactions (second parameter true) made the response 2.6 times larger than hashes only. If you need only some transactions, fetch hashes and request those transactions or their receipts individually.
5 of the 24 transactions in those five blocks were system transactions (5 × type 0x7e, L1-to-L2 deposit (OP Stack)). They are not user activity: filter them out when counting transactions.
"finalized" was 721 blocks (about 2.0 hours) behind the head.
A real Manta Pacific block header
From block 9,767,185, as our endpoint returned it (long hex values shortened).
{
"hash": "0x4e34d17a737d104f8b9d72663da8c734c4ccd09a6e5ce8f50449feef85b0f968",
"parentHash": "0xa37ba9d76410f80d8cfe745bac95c1de3b91c0df47cb8e7cfd1693410397d1c3",
"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"miner": "0x4200000000000000000000000000000000000011",
"stateRoot": "0x4b34d8baa8ae5a84b5fe44a9b6df3b982d6e9eced3fcbb8b05c495500204cde6",
"transactionsRoot": "0x8f249a15266f98b365183e8be8fcbe6a4ef654097d22077bcdcc1a3c9f9e9631",
"receiptsRoot": "0x2fceb0342980694a140e64cd682941a28b51a2ba13837be976bb08182caf4cdb",
"logsBloom": "0x0020000800000800…(256 bytes)",
"difficulty": "0x0",
"number": "0x950911",
"gasLimit": "0x2faf080",
"gasUsed": "0x6b86e9",
"timestamp": "0x6ace2901",
"extraData": "0x00000000fa0000000a",
"mixHash": "0x00aaa84516cf112b2c56c014828762912a33ab68814d43029077e0b18d1c0f8b",
"nonce": "0x0000000000000000",
"baseFeePerGas": "0x146",
"withdrawalsRoot": "0x9777c4768317919a0a4073e52b6da0435539199c91a53c7e201dc78203b4b044",
"blobGasUsed": "0x0",
"excessBlobGas": "0x0",
"parentBeaconBlockRoot": "0xada0c4d15ae46d14485a5d3bfdfd1edd93b77328de6b32cb94bef994603ce903",
"requestsHash": "0xe3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"size": "0x7ed",
"uncles": [],
"transactions": "7 transactions",
"withdrawals": []
}Example request
curl -s https://rpc.swiftnodes.io/rpc/manta?key=YOUR_API_KEY \
-X POST -H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_getBlockByNumber","params":["latest",false]}'import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.swiftnodes.io/rpc/manta?key=YOUR_API_KEY"),
});
// Header plus transaction hashes (2.2 KB)
const block = await client.getBlock({ blockTag: "latest" });
// With full transactions (5.7 KB on average on Manta Pacific)
const full = await client.getBlock({ blockNumber: block.number, includeTransactions: true });
const userTxs = full.transactions.filter((t) => !["0x7e"].includes(t.typeHex));
// A block that will not be reorganised
const final = await client.getBlock({ blockTag: "finalized" });Other methods on Manta Pacific
- eth_blockNumberSupported
- eth_chainIdSupported
- eth_getBalanceSupported
- eth_getTransactionByHashSupported
- eth_getTransactionReceiptSupported
- eth_callSupported
- eth_estimateGasSupported
- eth_gasPriceSupported
- eth_maxPriorityFeePerGasSupported
- eth_sendRawTransactionSupported
- eth_getTransactionCountSupported
- eth_getCodeSupported
- eth_subscribeSupported
- eth_getLogsSupported
- eth_getBlockReceiptsSupported
- eth_feeHistorySupported
- eth_getProofSupported
- eth_createAccessListSupported
- debug_traceCallSupported
- trace_blockNot available
- trace_transactionNot available
eth_getBlockByNumber on other chains
- Ethereum
- Base
- Arbitrum
- Optimism
- Polygon
- BNB Smart Chain
- Avalanche
- Sonic
- Linea
- Scroll
- zkSync Era
- Blast
- Mantle
- Gnosis
- Celo
- Berachain
- Monad
- Unichain
- Kaia
- PulseChain
- World Chain
- Ronin
- Abstract
- ApeChain
- MegaETH
- Fantom
- Lisk
- Hemi
- X Layer
- BOB
- Plasma
- Fraxtal
- Zora
- Story
- Soneium
- Sei
- Hyperliquid
- Taiko
- Morph
- Ink
- Katana
- Ethereum Classic
- opBNB
- Mode
- Flare
- Core
- Chiliz
- Telos EVM
- Tempo
- Cronos
- Shibarium
- Boba Network
- Arbitrum Nova
- Immutable zkEVM
Frequently asked questions
Does Manta Pacific support eth_getBlockByNumber?
Yes. eth_getBlockByNumber answered on the SwiftNodes Manta Pacific endpoint when our weekly probe called it through the customer path (2026-10-13).
How many transactions are in each Manta Pacific block?
In five consecutive blocks on 2026-10-13: 7, 7, 4, 3, 3.
Manta Pacific endpoints, live block height and WebSocket status are on the Manta Pacific RPC page.
One key covers every chain we serve, and SwiftNodes has a free tier.