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trace_replayBlockTransactions

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`trace_replayBlockTransactions` replays all transactions in a single block in order, against the state as it existed at that block, and returns one trace result per transaction. Unlike a plain receipt, the result can include the full internal call tree, a step-by-step virtual-machine trace, and the set of state slots each transaction read and wrote.

You choose how much detail to return with the `traceTypes` array. Request only what you need: `vmTrace` in particular produces very large payloads (one entry per executed opcode) and is the most expensive mode to compute. For most call-graph analysis, `["trace"]` alone is enough.

Use this method for block-level forensics — reconstructing internal transfers, auditing MEV activity, or diffing state across a whole block — when per-transaction calls would be too chatty. This is a `pro`-tier method; requests authenticated with a lower tier are rejected with `-32002`.

Parameters

This method takes no parameters.

Returns

trace_replayBlockTransactions return value
FieldType
resultobject

Examples

curl https://<your-endpoint>/ \
  -X POST -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"trace_replayBlockTransactions","params":[]}'
const res = await fetch("https://<your-endpoint>/", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "id": 1,
  "method": "trace_replayBlockTransactions",
  "params": [],
  "jsonrpc": "2.0"
}),
});
const data = await res.json();
import requests
resp = requests.post("https://<your-endpoint>/", json={"id":1,"method":"trace_replayBlockTransactions","params":[],"jsonrpc":"2.0"})
print(resp.json())

Usage

  1. Transport: HTTP (JSON-RPC).
  2. Networks: mainnet.
  3. Credit cost: 5 per call.

FAQ

What does trace_replayBlockTransactions do?
Re-executes every transaction in a block and returns a full execution trace — call graph, optional VM-level steps, and state changes — for each one.
How many credits does trace_replayBlockTransactions cost?
trace_replayBlockTransactions costs 5 credit(s) per call on Triport by default.
Is trace_replayBlockTransactions available over WebSocket?
trace_replayBlockTransactions is an HTTP JSON-RPC method.