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NewBotLabor Base Transaction Explainer
x402
NewBotLabor Base Transaction Explainer is a paid API for AI agents from newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-22).
Decodes and explains a Base mainnet transaction hash, identifying x402/EIP-3009 USDC settlement details including sender, recipient, amount, and relay info.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call utilities for autonomous agents, paid with x402 (USDC on Base; no account, no API key).
Output
A JSON object containing: transaction status, a human-readable summary of the transfer, the settlement method (e.g. transferWithAuthorization / EIP-3009), whether it was an x402 settlement, chain identifier, and a list of transfers each with from/to addresses, USDC amount, and token symbol.
Example use cases
Verify agent micropayment went through
“I just made an x402 payment on Base with tx hash 0xabc123def456... — can you decode it and confirm that exactly 0.003 USDC was sent to 0x1748...8647?”
Audit autonomous agent payment history
“Here's a Base transaction hash from my agent's last API call: 0xdeadbeef... — can you explain what it did, who sent it, who received it, and whether it was a valid x402 settlement?”
Validate USDC receipt before delivering service
“Before I fulfill this order, can you check Base tx hash 0x9f8e7d... and verify that at least 0.003 USDC was transferred to my address 0x1748...8647 via an x402 payment?”
Technical details
Endpoint
GEThttps://newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run/api/base/tx-explain?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to decode and verify a specific Base mainnet transaction, especially for x402/EIP-3009 USDC micropayment settlements. It is the right choice when an autonomous agent needs to confirm that a payment was correctly routed — checking sender, recipient, amount, and settlement method — before proceeding with a workflow. Prefer it over generic block explorers when you need structured, machine-readable output with optional validation checks against expected amounts and addresses, and when you want to confirm x402 protocol compliance specifically.
Side effects
- Invalid or non-existent transaction hash returns an error or empty result
- Transaction found but not a USDC transfer — isX402Settlement will be false
- expectedPayTo or expectedAmount mismatch will include a payToCheck or amountCheck failure flag
- Base RPC unavailability causing lookup timeout
- Hash for a different chain (not Base mainnet) may return no result or incorrect data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"method": "transferWithAuthorization (EIP-3009, x402 exact settlement)",
"status": "success",
"summary": "x402/EIP-3009 settlement: 0.003 USDC from 0xc9c7… to 0x1748…, relayed by 0xca5e…",
"transfers": [
{
"to": "0x1748…8647",
"from": "0xc9c7…1670",
"amount": 0.003,
"symbol": "USDC"
}
],
"isX402Settlement": true
}
}Tags
x402
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