ToolVet
80trust / 100

Base Tx

by Base Tx Explainer in Onchain & crypto

x402 APIPassing, checked 2 h ago

Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.

GET
https://automaton-tx-explainer.vercel.app/v1/base/tx
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
219 ms
352 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://automaton-tx-explainer.vercel.app/v1/base/tx

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://automaton-tx-explainer.vercel.app/v1/base/tx?hash=0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e

Parameters

ParameterTypeRequiredDescription
hashstringYesBase transaction hash

Example response

The provider's example. We can't check it without paying.

{
  "chain": "base",
  "fee": "0.00000027",
  "method": "transfer(address,uint256)",
  "status": "success",
  "summary": "success · transfer · 1 token transfer(s)",
  "tokenTransfers": [
    {
      "amount": "1.028272",
      "from": "0x...",
      "symbol": "USDC",
      "to": "0x..."
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://automaton-tx-explainer.vercel.app/v1/base/tx?hash=0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://automaton-tx-explainer.vercel.app/v1/base/tx?hash=0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fautomaton-tx-explainer.vercel.app%2Fv1%2Fbase%2Ftx
const res = await pay("https://automaton-tx-explainer.vercel.app/v1/base/tx?hash=0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://automaton-tx-explainer.vercel.app/v1/base/tx?hash=0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402212 ms$0.01
6 h agoPassed402245 ms$0.01
10 h agoPassed402199 ms$0.01
15 h agoPassed402249 ms$0.01
19 h agoPassed402251 ms$0.01
Show 10 older checks
23 h agoPassed402219 ms$0.01
27 h agoPassed402216 ms$0.01
32 h agoPassed402183 ms$0.01
36 h agoPassed402256 ms$0.01
40 h agoPassed402198 ms$0.01
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