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x402 Web Probe – Blockchain Transaction Lookup (Hub Europe, Germany)
x402
x402 Web Probe – Blockchain Transaction Lookup (Hub Europe, Germany) is a paid API for AI agents from superstone.ccwu.cc:8443, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-22).
Looks up on-chain transaction details (status, block, gas, confirmations) for a given transaction hash on Base or Ethereum, paid per-call via USDC on Base using x402.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.
Output
Returns a JSON object containing the transaction's to/from addresses, block number, success/failure status, gas used, ETH value transferred, and number of on-chain confirmations.
Example use cases
Confirm a crypto payment was received
“I sent USDC to a client on Base — the tx hash is 0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599. Can you check whether the transaction succeeded and how many confirmations it has?”
Debug a failed Ethereum transaction
“My Ethereum transaction 0xabc123...def456 might have failed. Can you pull up the on-chain details — status, gas used, and which block it landed in?”
Audit trail for a DeFi trade
“I need to verify a Base chain swap: tx hash 0x9f8e7d6c5b4a3210fedcba9876543210fedcba9876543210fedcba9876543210. What were the from and to addresses, the ETH value, and what block was it included in?”
Technical details
Endpoint
GEThttps://superstone.ccwu.cc:8443/v1/chain/tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need lightweight, pay-per-call on-chain transaction lookups without setting up a full node, indexer, or API key. Ideal for agents that only occasionally need to verify a transaction's status or metadata on Base or Ethereum and want to pay micro-amounts per query via x402.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction hash not found on the specified chain
- Unsupported chain value (must be 'base' or 'ethereum')
- Payment not completed or x402 handshake fails, blocking the request
- Transaction still pending with zero confirmations
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "0x...",
"from": "0x...",
"block": 36000000,
"status": "success",
"gas_used": "52000",
"value_eth": "0",
"confirmations": 12
}
}Tags
x402
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