# x402 Web Probe – Blockchain Transaction Lookup (Hub Europe, Germany)

> x402 Web Probe – Blockchain Transaction Lookup (Hub Europe, Germany) is a paid API for AI agents from arandar.ccwu.cc:8443, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-27).

Looks up on-chain transaction details (status, gas, block, confirmations) for a given tx hash on Base or Ethereum, paid per-call via USDC on Base using x402.

## Facts

- Endpoint: GET https://arandar.ccwu.cc:8443/v1/chain/tx?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-web-probe-blockchain-transaction-lookup-hub-europe-germany-a1d3c69c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5iZcfc62hwm2OKhHTWiGA

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-web-probe-blockchain-transaction-lookup-hub-europe-germany-a1d3c69c
```

Example prompt: Can you check the status of this Base transaction — 0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599 — and tell me whether it succeeded, how many confirmations it has, and how much gas was used?

## When to prefer this

Choose this endpoint when you need quick, pay-per-call blockchain transaction lookups on Base or Ethereum without setting up an RPC node, API key, or account. Ideal for agents that occasionally need to verify transaction finality, check gas costs, or audit on-chain transfers, especially when operating from a European region. Not suited for high-frequency polling (use a dedicated node) or chains other than Base and Ethereum.

## Known failure modes

- Invalid or malformed tx hash returns an error
- Transaction not yet indexed may return not-found or pending status
- Unsupported chain value (not 'base' or 'ethereum') causes validation failure
- Network or payment gateway timeout results in no response
- x402 payment failure blocks the request from being processed

## 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 with the transaction's to/from addresses, block number, success/failure status, gas used, ETH value transferred, and number of confirmations for the specified tx hash on Base or Ethereum.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "chain",
      "hash"
     ],
     "properties": {
      "hash": {
       "type": "string",
       "example": "0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599",
       "description": "0x transaction hash"
      },
      "chain": {
       "type": "string",
       "example": "base",
       "description": "base or ethereum"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "0x...",
  "from": "0x...",
  "block": 36000000,
  "status": "success",
  "gas_used": "52000",
  "value_eth": "0",
  "confirmations": 12
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-web-probe-blockchain-transaction-lookup-hub-europe-germany-a1d3c69c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from arandar.ccwu.cc:8443](https://www.zero.xyz/host/arandar.ccwu.cc%3A8443/llms.txt)