eth_getTransactionByBlockNumberAndIndex — Elysium JSON-RPC

Return a transaction by block and index.

POSThttps://triport.io/rpc/elysium

Network: Elysium mainnet (chain ID 99901)
Scope: elysium:rpc
Auth: X-API-Key: $TRIPORT_API_KEY
Rate limit: elysium_read_rpc - 5 / 10 / 25 / 40 / 40 RPS sustained (Free / Basic / Pro / Business / Enterprise; BE5, 2026-11-08); Limits

Endpoint and plans: Elysium RPC endpoint.

Terms on this page: Chain ID · Nonce · Sequencer.

Request

cURLJavaScriptPython

upstream_observed

curl https://triport.io/rpc/elysium \
  -H "X-API-Key: $TRIPORT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":7,"method":"eth_getTransactionByBlockNumberAndIndex","params":["0x287f17","0x1"]}'

const res = await fetch("https://triport.io/rpc/elysium", {
  method: "POST",
  headers: {
    "X-API-Key": process.env.TRIPORT_API_KEY,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "jsonrpc": "2.0",
    "id": 7,
    "method": "eth_getTransactionByBlockNumberAndIndex",
    "params": [
      "0x287f17",
      "0x1"
    ]
  }),
});
const data = await res.json();
console.log(data);

import os


import requests


resp = requests.post(
    "https://triport.io/rpc/elysium",
    headers={
        "X-API-Key": os.environ["TRIPORT_API_KEY"],
        "Content-Type": "application/json",
    },
    json={
        "jsonrpc": "2.0",
        "id": 7,
        "method": "eth_getTransactionByBlockNumberAndIndex",
        "params": [
            "0x287f17",
            "0x1",
        ],
    },
)
data = resp.json()
print(data)

Response

JSON

Example

{
  "jsonrpc": "2.0",
  "id": 7,
  "result": {
    "blockHash": "0x5b6f7d2fd30ff6d4b29c9242c6ce908c8a16993b731050e30122d49956957d2c",
    "blockNumber": "0x287f17",
    "blockTimestamp": "0x6af0da80",
    "from": "0x5699616f730312dc6646cab82e12edb3990d333d",
    "gas": "0x7a1200",
    "gasPrice": "0x5f7b5c0",
    "maxFeePerGas": "0x3b9aca00",
    "maxPriorityFeePerGas": "0x0",
    "hash": "0x2a8953a65e5e83ed550f329ffc2c579121812ed462869d514645784e9df8291e",
    "input": "0xdb57217bcde885068755b69242b0c665983dcea9d6b8e7c89f0b8f3be7228ca920598bcdc75995bcf84c937e8bb193f012a846536aa84c6f406257a01fc44970078d573dd2443be239351a81ab3bd70235b2083403142b8dd5cd75fe55681622218ff07f700d38c1a82b3d3a220cb4554e0f9d98c76798c6058e9e761a26232b922125652478671377d42fb4f5a247b41e44fc258b616554d6dc6c8a33802e63f2e9999e01e04840",
    "nonce": "0x1fb7",
    "to": "0x880b14b83c4cf2d93408edc1798bd28057c385dd",
    "transactionIndex": "0x1",
    "value": "0x0",
    "type": "0x2",
    "accessList": [],
    "chainId": "0x1863d",
    "v": "0x1",
    "r": "0x18e604ee970b99fa9aa46e373d9d19eb8eadb59a6bcd72367d709f2646a8c4fb",
    "s": "0x7823b2074950e373baa4520ee2ed27c79176112dbfad820c4af2bd6898821ed3",
    "yParity": "0x1"
  }
}

eth_getTransactionByBlockNumberAndIndex — return a transaction by block and index. Elysium is an Arbitrum Orbit L2 (chain ID 99901) that pays gas in HYPE; the signature and response shape come from the Elysium OpenRPC contract.

Read a transaction at a zero-based index in a block selected by number.

Parameters

JSON-RPC params is a positional array.

blockNumberBlockTagrequired

Block number in hex, or a tag such as latest.

indexQuantityrequired

Zero-based transaction or uncle index in the block, in hex.

Response

Measured 2026-11-08T20:25:21.434Z on Elysium mainnet; complete captured JSON-RPC request and response, not a captured Triport response.

On Elysium

Position 0x0 in an Elysium block is reserved for the Nitro start-of-block transaction, so user activity begins at position 0x1. The measured example reads block 0x287f17 at 0x1 and returns a signed EIP-1559 transaction (type 0x2, chain ID 0x1863d, nonce 0x1fb7) — the same transaction the by-hash variant returns for that block.

Selecting by number fits a sequential scanner: walk heights, read the count, then fetch positions 1 through count minus one. Keep the block hash from the response and compare it on a later pass if you want to detect that the node served a different block for the same height.

maxPriorityFeePerGas is zero in the capture. A Nitro sequencer orders transactions by arrival rather than by tip, so a zero tip is common on this chain. The HYPE amount in value is in wei with 18 decimals.

Errors

See Elysium errors. Inspect the code and message together.

Code	Meaning	Action
-32601	Method unavailable	Check the documented method set. A method outside it is rejected earlier with HTTP 403 `method_unknown`.
-32602	Invalid parameters	Correct the request.
-32005	Request limit exceeded	Arrives with HTTP 429: back off and honor Retry-After; see Limits.
-32000	Upstream unavailable	Retry reads with bounded backoff.
HTTP 429 `rate_limited`	Plan RPS exceeded (plain HTTP error, not JSON-RPC)	Honor Retry-After; see Limits.

Examples

JavaScript

const response = await fetch("https://triport.io/rpc/elysium", {
  method: "POST",
  headers: { "X-API-Key": process.env.TRIPORT_API_KEY, "Content-Type": "application/json" },
  body: JSON.stringify({"jsonrpc":"2.0","id":7,"method":"eth_getTransactionByBlockNumberAndIndex","params":["0x287f17","0x1"]}),
});
const payload = await response.json();

Notes

The result is the view of the healthy node that answered; adjacent calls are not pinned to one node.
For transaction submission, see eth_sendRawTransaction (live). The Triport contract excludes net_listening, net_peerCount, txpool_*, debug_* and trace_*: they are rejected with HTTP 403 method_unknown; see unsupported methods.

eth_accounts · eth_blobBaseFee · eth_blockNumber

Limits · Errors

Parameters

Response

On Elysium

Errors

Examples

Notes

Related