Trace API

The trace API is a set of node methods that replay a transaction and return its internal call tree, including contract-to-contract calls, value transfers and state changes not visible in the receipt.

A single transaction can trigger many nested internal calls — token transfers, contract creations, ETH moves between contracts — none of which appear as their own top-level entries. Trace methods (trace_transaction, debug_traceTransaction) replay execution to surface that call tree, which is essential for accounting, fund-flow work and debugging. Tracing is heavy, so many providers restrict it; we serve it from our own archive nodes and meter it per call, so deep internal-transfer queries stay available under the same prepaid balance.