eth_simulateV1 — Elysium JSON-RPC

Simulate calls without persisting state.

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":20,"method":"eth_simulateV1","params":[{"blockStateCalls":[{"calls":[{"from":"0x5699616f730312dc6646cab82e12edb3990d333d","to":"0x5699616f730312dc6646cab82e12edb3990d333d","value":"0x0"}]}],"validation":false,"traceTransfers":false},"0x287f17"]}'

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": 20,
    "method": "eth_simulateV1",
    "params": [
      {
        "blockStateCalls": [
          {
            "calls": [
              {
                "from": "0x5699616f730312dc6646cab82e12edb3990d333d",
                "to": "0x5699616f730312dc6646cab82e12edb3990d333d",
                "value": "0x0"
              }
            ]
          }
        ],
        "validation": false,
        "traceTransfers": false
      },
      "0x287f17"
    ]
  }),
});
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": 20,
        "method": "eth_simulateV1",
        "params": [
            {
                "blockStateCalls": [
                    {
                        "calls": [
                            {
                                "from": "0x5699616f730312dc6646cab82e12edb3990d333d",
                                "to": "0x5699616f730312dc6646cab82e12edb3990d333d",
                                "value": "0x0",
                            },
                        ],
                    },
                ],
                "validation": False,
                "traceTransfers": False,
            },
            "0x287f17",
        ],
    },
)
data = resp.json()
print(data)

Response

JSON

Example

{
  "jsonrpc": "2.0",
  "id": 20,
  "result": [
    {
      "baseFeePerGas": "0x0",
      "blobGasUsed": "0x0",
      "calls": [
        {
          "returnData": "0x",
          "logs": [],
          "gasUsed": "0x5208",
          "maxUsedGas": "0x5208",
          "status": "0x1"
        }
      ],
      "difficulty": "0x1",
      "extraData": "0xe5774c81371f28ec1141f95498ecbfd183505a8351d1354f9b467eeb9250d419",
      "gasLimit": "0x4000000000000",
      "gasUsed": "0x5208",
      "hash": "0xccc513a27a20b51369ebfe1038316e17bd509e4dc190ef0fc322d3df11655ec6",
      "l1BlockNumber": "0x3064cb8",
      "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
      "miner": "0xa4b000000000000000000073657175656e636572",
      "mixHash": "0x00000000000008a60000000003064cb8000000000000003d0001000000000000",
      "nonce": "0x0000000000000000",
      "number": "0x287f18",
      "parentBeaconBlockRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "parentHash": "0x5b6f7d2fd30ff6d4b29c9242c6ce908c8a16993b731050e30122d49956957d2c",
      "receiptsRoot": "0xf78dfb743fbd92ade140711c8bbc542b5e307f0ab7984eff35d751969fe57efa",
      "sendCount": "0x8a6",
      "sendRoot": "0xe5774c81371f28ec1141f95498ecbfd183505a8351d1354f9b467eeb9250d419",
      "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
      "size": "0x297",
      "stateRoot": "0xa29e30fe4428097690dbd8852905beb9e5c60f8af28369089a40addf649dc264",
      "timestamp": "0x6af0da8c",
      "transactions": [
        "0x29b1b8e8bb3169f47eec5fc9f2845c2d38548ad2f762e7968dbf5ebfac69ea3f"
      ],
      "transactionsRoot": "0xef0bdefd95270b9d55ddca9473582b7201dd60be27d1775fdd7612724b8898dd",
      "uncles": [],
      "withdrawals": [],
      "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
    }
  ]
}

eth_simulateV1 — simulate calls without persisting state. 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.

Simulate call groups on a selected base block. The captured zero-value self-transfer returns status 0x1 and creates no persistent transaction. Simulation block hashes and numbers are hypothetical execution output.

Parameters

JSON-RPC params is a positional array.

simulationobjectrequired

Simulation options: blockStateCalls contains call groups; validation and traceTransfers are optional booleans. Execution is not persisted.

blockBlockTagoptional

Block number in hex, or a tag: latest, earliest, pending.

Response

Measured 2026-11-08T20:25:49.867Z on Elysium mainnet; complete captured JSON-RPC request and response, not a captured Triport response.

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":20,"method":"eth_simulateV1","params":[{"blockStateCalls":[{"calls":[{"from":"0x5699616f730312dc6646cab82e12edb3990d333d","to":"0x5699616f730312dc6646cab82e12edb3990d333d","value":"0x0"}]}],"validation":false,"traceTransfers":false},"0x287f17"]}),
});
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

Errors

Examples

Notes

Related