ToolVet
78trust / 100

Tx Plain English

by TrollBridge in Onchain & crypto

x402 APIPassing, checked 3 h ago

NOT AN AUDIT — decoder, not a simulator: raw transaction decoder — paste a raw signed tx, get a plain-English explanation of what it moves and where, with common contract calls decoded. Decodes intent, does not simulate. Toll: $0.10 USDC on Base or Solana.

GET
https://mini-tollbooth.onrender.com/tx-plain-english
Price
$0.1
per call in USDC
Uptime
100%
last 30 days
Response time
218 ms
589 ms slowest 5%
Last check
Passed
3 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

How to call it

GET https://mini-tollbooth.onrender.com/tx-plain-english

Each call costs $0.1 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://mini-tollbooth.onrender.com/tx-plain-english?chain=base&tx=0xf86c808504a817c80082520894353535353535353535353535353535353535353535880de0b6b3a7640000801ba0

Parameters

ParameterTypeRequiredDescription
chainstringNoWhich chain (default base) — labeling only. One of: base, ethereum.
txstringYesRaw signed transaction hex (0x…) to decode and explain.

Example response

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

{
  "chain": "base",
  "description": "NOT AN AUDIT — decoder, not a simulator: raw transaction decoder — paste a raw signed tx, get a plain-English explanation of what it moves and where, with common contract calls decoded. Decodes intent, does not simulate.",
  "flags": [
    "native-value-transfer"
  ],
  "lane": "/tx-plain-english",
  "to": "0x...",
  "type": "0x2",
  "value_eth": "1.5"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.1.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://mini-tollbooth.onrender.com/tx-plain-english?chain=base&tx=0xf86c808504a817c80082520894353535353535353535353535353535353535353535880de0b6b3a7640000801ba0'

# 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://mini-tollbooth.onrender.com/tx-plain-english?chain=base&tx=0xf86c808504a817c80082520894353535353535353535353535353535353535353535880de0b6b3a7640000801ba0' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fmini-tollbooth.onrender.com%2Ftx-plain-english
const res = await pay("https://mini-tollbooth.onrender.com/tx-plain-english?chain=base&tx=0xf86c808504a817c80082520894353535353535353535353535353535353535353535880de0b6b3a7640000801ba0");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://mini-tollbooth.onrender.com/tx-plain-english?chain=base&tx=0xf86c808504a817c80082520894353535353535353535353535353535353535353535880de0b6b3a7640000801ba0")
    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
3 h agoPassed402207 ms$0.1
7 h agoPassed402210 ms$0.1
12 h agoPassed402197 ms$0.1
16 h agoPassed402457 ms$0.1
19 h agoPassed402591 ms$0.1
Show 10 older checks
23 h agoPassed402218 ms$0.1
27 h agoPassed402229 ms$0.1
31 h agoPassed402563 ms$0.1
35 h agoPassed402591 ms$0.1
39 h agoPassed402321 ms$0.1
42 h agoPassed402589 ms$0.1
46 h agoPassed402194 ms$0.1
2 days agoPassed402206 ms$0.1
2 days agoPassed402220 ms$0.1
2 days agoPassed402241 ms$0.1