eth_getBlockTransactionCountByHash — Elysium JSON-RPC

Return the transaction count of a block.

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 · JSON-RPC.

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":1,"method":"eth_getBlockTransactionCountByHash","params":["0xc919128f94468931868392eaaad656f740d799155c8c8359158a9f5bb1a68046"]}'

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": 1,
    "method": "eth_getBlockTransactionCountByHash",
    "params": [
      "0xc919128f94468931868392eaaad656f740d799155c8c8359158a9f5bb1a68046"
    ]
  }),
});
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": 1,
        "method": "eth_getBlockTransactionCountByHash",
        "params": [
            "0xc919128f94468931868392eaaad656f740d799155c8c8359158a9f5bb1a68046",
        ],
    },
)
data = resp.json()
print(data)

Response

JSON

Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x3"
}

eth_getBlockTransactionCountByHash — return the transaction count of a block. 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.

The number of transactions in a block selected by hash.

Parameters

JSON-RPC params is a positional array.

blockHashHashrequired

32-byte block hash.

Response

Measured 2026-11-08 on Elysium mainnet; captured values in a reconstructed JSON-RPC envelope, not a captured Triport response.

On Elysium

The count includes the Nitro system transaction. Every Elysium block starts with an internal ArbOS transaction of type 0x6a sent from 0x00000000000000000000000000000000000a4b05, so a block with two user transactions reports 0x3, which is exactly what the capture for hash 0xc919…8046 returned.

Subtract one if you want user activity only, or check the type of index 0 before you do. The count is how you bound a loop over eth_getTransactionByBlockHashAndIndex: indices run from 0x0 to count minus one.

With blocks arriving roughly every tenth of a second, many Elysium blocks contain only the system transaction. A count of 0x1 is a normal, quiet block — useful as a cheap filter before fetching full block bodies when you scan for activity.

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":1,"method":"eth_getBlockTransactionCountByHash","params":["0xc919128f94468931868392eaaad656f740d799155c8c8359158a9f5bb1a68046"]}),
});
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