ToolVet
77trust / 100

Tools Transaction Lookup

by DexL Agents in Onchain & crypto

x402 APIPassing, checked 2 h ago

Look up any transaction and its receipt by hash on 28 EVM chains: success or revert, block number, gas used, effective gas price, sender and recipient. Covers Base, Ethereum, Arbitrum, Optimism, Polygon, BSC and more. Use it to confirm a payment or settlement actually landed.

POST
https://agents.dexl.io/v1/tools/transaction-lookup
Price
$0.001
per call in USDC
Uptime
96.8%
last 30 days
Response time
723 ms
1.6 s 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

POST https://agents.dexl.io/v1/tools/transaction-lookup

Each call costs $0.001 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.

POST https://agents.dexl.io/v1/tools/transaction-lookup
content-type: application/json

{
  "chain": "base",
  "hash": "0x1022a6982b6f0d0dbe6ba0f3e02b8a1c0b6cd0b1a0a4f5f0d4c9b2e3a1f60c77"
}

Parameters

ParameterTypeRequiredDescription
chainstringNoWhich chain to read from One of: abstract, arbitrum, avalanche, base, berachain, blast, bsc, celo, cronos, ethereum, fraxtal, gnosis. Default: "base".
hashstringYesTransaction hash (0x...)

Example response

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

{
  "cached": false,
  "output": {},
  "units": 1
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

The code pays $0.001 in USDC on Base instead: it uses a payment scheme other than exact, which needs a different client setup.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agents.dexl.io/v1/tools/transaction-lookup' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","hash":"0x1022a6982b6f0d0dbe6ba0f3e02b8a1c0b6cd0b1a0a4f5f0d4c9b2e3a1f60c77"}'

# 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 - -X POST 'https://agents.dexl.io/v1/tools/transaction-lookup' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","hash":"0x1022a6982b6f0d0dbe6ba0f3e02b8a1c0b6cd0b1a0a4f5f0d4c9b2e3a1f60c77"}' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.dexl.io%2Fv1%2Ftools%2Ftransaction-lookup&method=POST
const res = await pay("https://agents.dexl.io/v1/tools/transaction-lookup", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "chain": "base",
    "hash": "0x1022a6982b6f0d0dbe6ba0f3e02b8a1c0b6cd0b1a0a4f5f0d4c9b2e3a1f60c77"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agents.dexl.io/v1/tools/transaction-lookup",
        json={
            "chain": "base",
            "hash": "0x1022a6982b6f0d0dbe6ba0f3e02b8a1c0b6cd0b1a0a4f5f0d4c9b2e3a1f60c77",
        },
    )
    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 agoPassed402857 ms$0.001
7 h agoPassed4022.0 s$0.001
12 h agoPassed402703 ms$0.001
16 h agoPassed402946 ms$0.001
20 h agoPassed402823 ms$0.001
Show 10 older checks
24 h agoPassed402849 ms$0.001
29 h agoPassed402654 ms$0.001
33 h agoPassed402726 ms$0.001
37 h agoPassed402666 ms$0.001
41 h agoPassed402745 ms$0.001
46 h agoPassed4021.6 s$0.001
2 days agoPassed402848 ms$0.001
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2 days agoPassed402637 ms$0.001
3 days agoPassed402461 ms$0.001