trace_transaction

trace_transaction returns the OpenEthereum/Nethermind-style call tree for a confirmed Avalanche C-Chain transaction, exposing every internal call, contract creation, and self-destruct (suicide) action it performed. The C-Chain is Avalanche's EVM chain, where AVAX is the gas token and Snowman consensus finalizes blocks in roughly one to two seconds. Unlike the opcode-level debug tracers, this gives you a clean, flat list of actions — perfect for following AVAX value as it moves through nested contract calls. Send the request to https://avalanche.therpc.io/YOUR_API_KEY (chain ID 43114, hex 0xa86a) with the transaction hash, and each returned trace's traceAddress encodes its exact position in the call tree.

Use cases

• Enumerate every internal AVAX transfer in a C-Chain transaction, including ones that emit no event.
• Trace fund flows across multiple contracts in an Avalanche DeFi interaction (for example a Trader Joe swap routed through several pools).
• Identify which sub-call caused a revert in a multi-hop transaction.
• Index internal transactions for an Avalanche block explorer such as Snowtrace.

Parameters

Response

Example request

1curl https://avalanche.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5    "jsonrpc": "2.0",
6    "method": "trace_transaction",
7    "params": ["0x0000000000000000000000000000000000000000000000000000000000000000"],
8    "id": 1
9  }'

Try it live in the Avalanche playground.

Errors & troubleshooting

Common pitfalls

• It needs a trace-enabled archive node (Geth with --gcmode=archive plus the trace API, or Erigon/Nethermind with the trace API); most public Avalanche light nodes do not expose it.
• The output differs from debug_traceTransaction — there is no opcode-level data, only call, create, and suicide actions — so pick the method that matches the granularity you need.
• A failed transaction yields a truncated trace up to the revert point, not the full call tree it would have produced on success.

Supported networks

• Mainnet — Chain ID: 43114
• Fuji

See also

• trace_replayTransaction
• trace_block
• trace_filter
• debug_traceTransaction

1curl https://avalanche.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H 'Content-Type: application/json' \
4  -d '{"jsonrpc":"2.0","id":1,"method":"trace_transaction","params":["0x0000000000000000000000000000000000000000000000000000000000000000"]}'