debug_traceCall - Flow EVM RPC Method
Trace a call without executing on Flow EVM Gateway. Requires archive node for debugging consumer NFTs (NBA Top Shot, Disney Pinnacle), gaming dApps, and hybrid Cadence-EVM applications.
Traces a call without creating a transaction on Flow EVM Gateway.
Archive Node Required
This method requires an archive node. It is not available on full nodes.
Use Cases
- Transaction simulation - Debug before sending
- Gas analysis - Analyze gas usage per opcode
- Contract debugging - Step through execution for consumer NFTs (NBA Top Shot, Disney Pinnacle), gaming dApps, and hybrid Cadence-EVM applications
Request Parameters
Call object (same as eth_call)
Block number or tag
Tracer configuration
Response Body
Code Examples
curl -X POST https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "debug_traceCall",
"params": [
{"to": "0xd3bF53DAC106A0290B0483EcBC89d40FcC961f3e", "data": "0x70a08231000000000000000000000000d3bF53DAC106A0290B0483EcBC89d40FcC961f3e"},
"latest",
{"tracer": "callTracer"}
],
"id": 1
}'import { JsonRpcProvider } from 'ethers';
const provider = new JsonRpcProvider('https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY');
const trace = await provider.send('debug_traceCall', [
{ to: '0xd3bF53DAC106A0290B0483EcBC89d40FcC961f3e', data: '0x70a08231000000000000000000000000d3bF53DAC106A0290B0483EcBC89d40FcC961f3e' },
'latest',
{ tracer: 'callTracer' }
]);
console.log('Trace:', trace);Related Methods
eth_call- Execute call without tracedebug_traceTransaction- Trace actual transaction
debug_traceBlockByNumber
Trace all transactions in a block by number on Flow EVM Gateway. Requires archive node.
debug_traceTransaction
Trace a transaction execution on Flow EVM Gateway. Requires archive node for debugging consumer NFTs (NBA Top Shot, Disney Pinnacle), gaming dApps, and hybrid Cadence-EVM applications.