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Transaction Simulate — Move REST API

Overview​

Simulate a signed or unsigned transaction to preview effects and gas.

Endpoint​

POST /v1/transactions/simulate

Movement-Specific Notes​

  • Use realistic parameters to improve accuracy.

Request​

Body Schema​

[{ "sender": "0x...", "payload": { "type": "entry_function_payload", "function": "..." } }]

Response​

Success Response (200)​

[{ "gas_used": "1234", "success": true, "vm_status": "Executed successfully" }]

Code Examples​

TypeScript (Aptos SDK)​

import { Aptos, AptosConfig, Network } from '@aptos-labs/ts-sdk';
const cfg = new AptosConfig({ network: Network.CUSTOM, fullnode: 'https://api-movement-mainnet.n.dwellir.com/YOUR_API_KEY/v1' });
const aptos = new Aptos(cfg);
// Use aptos.simulateTransaction helpers

Python​

# Use aptos_sdk simulate helpers (where available)

cURL​

curl -X POST https://api-movement-mainnet.n.dwellir.com/YOUR_API_KEY/v1/transactions/simulate \
  -H "Content-Type: application/json" \
  -d '[{"sender":"0x...","payload":{}}]'

EVM Equivalent​

eth_estimateGas for EVM gas estimation.