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Vextorium EVM Transaction Transfer Decoder
x402
Vextorium EVM Transaction Transfer Decoder is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-20).
Decodes an EVM transaction hash to reveal native value moved, ERC-20 token transfers, ERC-721/ERC-1155 NFT transfers, transaction status, gas fee, contract creation, and method selector.
Price / call$0.004
Success—
StatusUnknown
How this service works
Decode what an EVM transaction moved: native value, every ERC-20 transfer (symbol, decimals, from, to, amount), ERC-721 and ERC-1155 NFT transfers, status, fee paid, contract created and method selector.
Output
Returns a JSON object with: transaction hash, network, block number, status (ok/failed), sender address (de), receiver address (a), native currency symbol, native value transferred, native fee paid, method selector, explorer URL, total event count, array of ERC-20 token transfers (each with from, to, token address, symbol, human-readable amount, raw amount), and array of NFT transfers.
Example use cases
DeFi payment audit trail
“I need to verify this USDC payment on Base — transaction hash 0x9de0044cbae3b8df09402ca5a6ac348c307e68918216a0b2d35133811bef03b8 — can you tell me exactly how much was sent, from which address to which address, and confirm the transaction succeeded?”
NFT transfer confirmation
“Can you check this Ethereum transaction 0xabc123...def456 and tell me if any NFTs were transferred, which ERC-721 or ERC-1155 tokens moved, and between which wallets?”
Smart contract interaction analysis
“I want to understand what this Arbitrum transaction 0x5f7a...c3d2 actually did — what tokens moved, what method selector was called, whether a contract was created, and what the total gas fee was in ETH.”
Technical details
Endpoint
POSThttps://api.vextorium.com/tx-transferencias-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a complete, structured breakdown of what an EVM transaction actually moved — including all token types (ERC-20, ERC-721, ERC-1155) and native value — across Base, Ethereum, Arbitrum, Optimism, or Polygon. Prefer it over raw RPC calls or block explorers when you need machine-readable transfer data without parsing raw logs. Ideal for verifying payments, auditing DeFi activity, confirming NFT transfers, or building transaction summaries for users.
Side effects
- Invalid or malformed transaction hash returns an error — hash must be 0x-prefixed 66-character hex string
- Transaction not found on the specified network if hash doesn't exist or wrong network selected
- Network not supported if a chain other than base/ethereum/arbitrum/optimism/polygon is requested
- RPC timeout or upstream node unavailability may cause delayed or failed responses
- Very recent transactions not yet indexed may return incomplete data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| red | string | |
| hash_tx | string | Transaction hash (0x + 64 hex) |
Output
Schema · Response
{
"type": "json",
"example": {
"a": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"de": "0x772003A2E9c2cCC8af956870a37A66F64F8CEC38",
"red": "base",
"hash": "0x9de0044cbae3b8df09402ca5a6ac348c307e68918216a0b2d35133811bef03b8",
"nfts": [],
"bloque": 51998598,
"estado": "ok",
"nativo": "ETH",
"selector": "0xcf092995",
"explorador": "https://basescan.org/tx/0x9de0044cbae3b8df09402ca5a6ac348c307e68918216a0b2d35133811bef03b8",
"valor_nativo": 0,
"comision_nativo": 6.3421300737e-7,
"eventos_totales": 2,
"transferencias_tokens": [
{
"a": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"de": "0xa8FC873625b2CD39E2BdDA92A2ABeD165C66868F",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"simbolo": "USDC",
"cantidad": 0.003,
"cantidad_bruta": "3000"
}
]
}
}Tags
x402
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