ToolVet
78trust / 100

Prod Sandbox Code Runner Buy

by robotshop.up.railway.app in Developer tools

x402 APIPassing, checked 5 h ago

Real working isolated runtime sandbox that securely executes JavaScript/Python code snippets for autonomous agents with strict memory limits and 3000ms timeout.

POST
https://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
208 ms
289 ms slowest 5%
Last check
Passed
5 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://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy

Each call costs $0.02 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://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy
content-type: application/json

{
  "client_id": "agent-client-001"
}

Parameters

ParameterTypeRequiredDescription
client_idstringNoOptional calling agent or client ID

Example response

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

{
  "asset_delivery": {
    "delivered_at": "2026-10-05T10:35:09.498Z",
    "license": "Commercial MIT",
    "payload": {}
  },
  "name": "Autonomous Ephemeral Sandbox Code Execution Tool Action",
  "product_id": "prod-sandbox-code-runner",
  "status": "success",
  "transaction_receipt": {
    "block_number": 12345678,
    "tx_hash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy' \
  -H 'content-type: application/json' \
  --data-raw '{"client_id":"agent-client-001"}'

# 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://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy' \
  -H 'content-type: application/json' \
  --data-raw '{"client_id":"agent-client-001"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Frobotshop.up.railway.app%2Fapi%2Fv1%2Fproducts%2Fprod-sandbox-code-runner%2Fbuy&method=POST
const res = await pay("https://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "client_id": "agent-client-001"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://robotshop.up.railway.app/api/v1/products/prod-sandbox-code-runner/buy",
        json={
            "client_id": "agent-client-001",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
5 h agoPassed402207 ms$0.02
9 h agoPassed402246 ms$0.02
14 h agoPassed402228 ms$0.02
19 h agoPassed402289 ms$0.02
23 h agoPassed402199 ms$0.02
Show 10 older checks
27 h agoPassed402258 ms$0.02
31 h agoPassed402208 ms$0.02
36 h agoPassed402209 ms$0.02
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