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Vextorium EVM Transaction Decoder
x402
Vextorium EVM Transaction Decoder is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-19).
Decodes and enriches an EVM transaction by hash, returning sender/receiver details, token transfers, method called, fees, status, and ENS names across Ethereum, Base, Arbitrum, Optimism, Polygon, and zkSync.
Price / call$0.004
Success—
StatusUnknown
How this service works
558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
Returns a JSON object with: decoded transaction hash, network, block number, timestamp, sender and receiver addresses (with ENS names, labels, and scam flags), transaction status (success/failed), failure reason if applicable, native value and fee in ETH/native token, smart contract method name if available, decoded parameters, token transfer array (each with token info, from, to, amount), confirmation count, and data source attribution (e.g. Blockscout).
Example use cases
Verify a user's on-chain payment
“A user just told me they paid with transaction hash 0xabc123... on Arbitrum — can you decode that tx and confirm it went through successfully and what the actual value transferred was?”
Audit a suspicious wallet transfer
“I need to investigate transaction 0xdef456... on Ethereum — decode it and tell me the sender, recipient, ENS names if available, any token transfers, the method called, and whether it was flagged as a scam address.”
Display DeFi trade details to user
“Fetch the full details of tx hash 0x789fed... on Optimism so I can show the user what swap or DeFi action they executed — including the method name, fees paid, block number, and confirmation count.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/tx-decode?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need human-readable, enriched details about a specific EVM transaction — especially when you need ENS resolution, token transfer breakdown, scam flagging, or method decoding across Ethereum, Base, Arbitrum, Optimism, Polygon, or zkSync. Prefer this over raw RPC calls when you want pre-parsed, labeled output without writing ABI decoding logic. Best for agents that need to explain or audit a transaction to a user.
Side effects
- Invalid or malformed transaction hash returns an error response
- Transaction hash not found on the specified network returns null or 404-style error
- Unsupported network value returns validation error
- Pending or unconfirmed transactions may have incomplete data (no block, no confirmations)
- Network congestion or Blockscout downtime may cause timeouts or incomplete responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hash | string | |
| network | string |
Output
Schema · Response
{
"type": "json",
"example": {
"a": {
"ens": "vitalik.eth",
"name": "Vb 5",
"scam": null,
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"contract": true
},
"date": "2026-09-29T18:17:57.000000Z",
"from": {
"ens": null,
"name": null,
"scam": null,
"address": "0x69bAdF095B03d62e97445EB0142e6488d19fF38B",
"contract": true
},
"hash": "0xcde788b2a1fd8778da181801317e8b56080cfe285987400abe83ad2f03a0b5a0",
"block": 51958265,
"method": null,
"source": "Blockscout (https://base.blockscout.com)",
"status": "success",
"network": "base",
"native_fee": 1.46766326215e-7,
"parameters": null,
"native_value": 1e-7,
"confirmations": 142598,
"failure_reason": null,
"token_transfers": []
}
}Tags
x402
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