trace_replayBlockTransactions

Where trace_block gives you only the call tree, trace_replayBlockTransactions re-executes every transaction in a BSC block from scratch and lets you keep up to three artifacts per transaction: the call-tree trace, the opcode-level vmTrace, and the stateDiff. You choose which through traceTypes. Point it at chain ID 56 via https://bsc.therpc.io/YOUR_API_KEY. The state diff is what earns the cost. For each transaction it records the precise balance, nonce, code, and storage mutations the execution caused. Replaying a whole block this way is the most demanding call in the trace namespace, and it only works against a trace-enabled archive node holding that block's state.

Use cases

• Generate a full state-diff audit for every transaction in a block and feed it into a chain analytics pipeline.
• Rebuild all BNB and token balance changes inside a block for accounting or reconciliation.
• Replay a known MEV block end to end to see exactly how the bundle played out.

Parameters

Response

Example request

1curl https://bsc.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5    "jsonrpc": "2.0",
6    "method": "trace_replayBlockTransactions",
7    "params": [
8        "latest",
9        [
10          "trace"
11        ]
12      ],
13    "id": 1
14  }'

Try it live in the BNB Smart Chain playground.

Errors & troubleshooting

Common pitfalls

• It is the costliest call in the trace namespace. Replaying every transaction and computing each requested trace type can time out on a busy block.
• A trace-enabled archive node is required, and lower service tiers often rate-limit or refuse the call outright.
• All three traceTypes on a dense block can return hundreds of megabytes, so ask for the narrowest set of artifacts that answers your question.

Supported networks

• Mainnet — Chain ID: 56
• Testnet — Chain ID: 97

See also

• trace_block
• trace_replayTransaction
• trace_call
• debug_traceBlockByNumber

1curl https://bsc.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H 'Content-Type: application/json' \
4  -d '{"jsonrpc":"2.0","id":1,"method":"trace_replayBlockTransactions","params":["",[]]}'