ToolVet
78trust / 100

Base Tx

by agentshelf.syntexa.ch in Onchain & crypto

x402 APIPassing, checked 2 min ago

Call when an agent needs status, block, gas used, and decoded ERC-20 Transfer logs for one Base tx hash. Status is success, reverted, or pending. USDC transfers are included. A missing hash errors. Read-only. No spend. Send JSON {"hash":"0xabababababababababababababababababababababababababababababababab"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/base-tx first.

POST
https://agentshelf.syntexa.ch/v1/base-tx
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
34 ms
135 ms slowest 5%
Last check
Passed
2 min ago, next in 27 min

Run a free test callHow to call it

Reliability

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

How to call it

POST https://agentshelf.syntexa.ch/v1/base-tx

Each call costs $0.005 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://agentshelf.syntexa.ch/v1/base-tx
content-type: application/json

{
  "hash": "0xabababababababababababababababababababababababababababababababab"
}

Parameters

ParameterTypeRequiredDescription
hashstringYesBase mainnet transaction hash. Example: 0xabababababababababababababababababababababababababababababababab. Returns status, block_number, gas_used, and ERC-20 Transfer logs including USDC.

Example response

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

{
  "billed": true,
  "block_number": 100,
  "gas_used": "21000",
  "hash": "0xabababababababababababababababababababababababababababababababab",
  "network": "eip155:8453",
  "ok": true,
  "receipt_id": "rcpt_01EXAMPLE000000000000000",
  "status": "success",
  "success": true,
  "transfers": [
    {
      "decimals": 6,
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "value": "1",
      "value_raw": "1000000"
    }
  ],
  "warnings": []
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentshelf.syntexa.ch/v1/base-tx' \
  -H 'content-type: application/json' \
  --data-raw '{"hash":"0xabababababababababababababababababababababababababababababababab"}'

# 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://agentshelf.syntexa.ch/v1/base-tx' \
  -H 'content-type: application/json' \
  --data-raw '{"hash":"0xabababababababababababababababababababababababababababababababab"}' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentshelf.syntexa.ch%2Fv1%2Fbase-tx&method=POST
const res = await pay("https://agentshelf.syntexa.ch/v1/base-tx", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "hash": "0xabababababababababababababababababababababababababababababababab"
  }),
});
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentshelf.syntexa.ch/v1/base-tx",
        json={
            "hash": "0xabababababababababababababababababababababababababababababababab",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 min agoPassed40234 ms$0.005
5 h agoPassed402100 ms$0.005
9 h agoPassed40230 ms$0.005
14 h agoPassed402135 ms$0.005
18 h agoPassed402176 ms$0.005
Show 10 older checks
22 h agoPassed40284 ms$0.005
26 h agoPassed40237 ms$0.005
31 h agoPassed40233 ms$0.005
35 h agoPassed40233 ms$0.005
39 h agoPassed40231 ms$0.005
44 h agoPassed40238 ms$0.005
2 days agoPassed40252 ms$0.005
2 days agoPassed40233 ms$0.005
2 days agoPassed40248 ms$0.005
3 days agoPassed40230 ms$0.005