Decode a Base transaction's calldata into a human-readable function call and arg...
https://quartermaster.surewhynot.app/v1/tx-decodeOverview
Decode a Base transaction's calldata into a human-readable function call and arguments — ERC-20 transfer/approve and the EIP-3009 transferWithAuthorization used by x402 settlements. Recognizes x402 settlement transactions.
Protocol
x402
Price
$0.0030
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
crypto/transactions
Provider
quartermaster
Source
bazaar
Indexed
2026-07-20 07:08:11
Health
Status
healthy
Latency (p50)
246ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-10-31 07:15:47
Last Healthy
2026-10-31 07:15:47
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"hash": "0x06be01596be1cb68d9b12a33946d2228a82eeb31016ab237825cec547017095f"
},
"type": "http"
}
Output Schema
{
"example": {
"decoded_args": [
{
"name": "from",
"type": "address",
"value": "0x8872...3F9b"
},
{
"name": "to",
"type": "address",
"value": "0xc2a3...4083"
},
{
"formatted": "0.002 USDC",
"name": "value",
"type": "uint256",
"value": "2000"
}
],
"explorer": "https://basescan.org/tx/0x06be...095f",
"hash": "0x06be...095f",
"interpretation": "USDC transferWithAuthorization of 0.002 USDC (x402 settlement)",
"is_x402_settlement": true,
"method": {
"name": "transferWithAuthorization",
"selector": "0xe3ee160e",
"source": "known"
},
"network": "base",
"to": "0x8335...2913"
},
"type": "json"
}