ToolVet
71trust / 100

Compute Xh Bundle

by xhagents.xyz in Onchain & crypto

x402 APIPassing, checked 43 min ago

Thirteen production playbooks from running an x402 paid API on Base: shipping the endpoint, the payment-verifier rules, the real-money buyer test, the Base RPC capability audit, CDP authentication, directory registration, consolidating Cloudflare/Solana data, an rclone Google Drive bridge, AdSense, multi-size ad slots, nginx route recovery and secure Telegram alerts. Each item carries the mechanism, the commands, the pitfalls that cost us real money and how to verify the result.

POST
https://xhagents.xyz/api/compute/xh-bundle
Price
$0.91
per call in USDC
Uptime
100%
last 30 days
Response time
1.5 s
2.4 s slowest 5%
Last check
Passed
43 min ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

POST https://xhagents.xyz/api/compute/xh-bundle

Each call costs $0.91 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://xhagents.xyz/api/compute/xh-bundle
content-type: application/json

{
  "format": "json",
  "topic": "fix-bug-base-rpc"
}

Parameters

ParameterTypeRequiredDescription
formatstringNo
topicstringNo

Example response

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

{
  "bundle": "XH Agents — Build & Ship an x402 Paid API",
  "items": [
    {
      "id": "fix-bug-base-rpc",
      "pitfalls": [
        "base.llamarpc.com answers a Cloudflare 525 / non-JSON"
      ],
      "steps": [
        {
          "do": "probe each candidate with a real ~200-block eth_getLogs",
          "n": 1
        }
      ],
      "title": "Pick Base RPC endpoints that actually work"
    }
  ],
  "items_returned": 13,
  "requested_topic": null,
  "version": "1.0.0"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.91.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://xhagents.xyz/api/compute/xh-bundle' \
  -H 'content-type: application/json' \
  --data-raw '{"format":"json","topic":"fix-bug-base-rpc"}'

# 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://xhagents.xyz/api/compute/xh-bundle' \
  -H 'content-type: application/json' \
  --data-raw '{"format":"json","topic":"fix-bug-base-rpc"}' \
  | 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 $0.91 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.91" });
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 $0.91 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fxhagents.xyz%2Fapi%2Fcompute%2Fxh-bundle&method=POST
const res = await pay("https://xhagents.xyz/api/compute/xh-bundle", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "format": "json",
    "topic": "fix-bug-base-rpc"
  }),
});
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 $0.91 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.91"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://xhagents.xyz/api/compute/xh-bundle",
        json={
            "format": "json",
            "topic": "fix-bug-base-rpc",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
43 min agoPassed402785 ms$0.91
5 h agoPassed402196 ms$0.91
9 h agoPassed4021.5 s$0.91
14 h agoPassed4021.9 s$0.91
18 h agoPassed4021.6 s$0.91
Show 10 older checks
22 h agoPassed4021.4 s$0.91
26 h agoPassed4021.5 s$0.91
30 h agoPassed4022.4 s$0.91
34 h agoPassed4021.3 s$0.91
38 h agoPassed4021.4 s$0.91
42 h agoPassed4021.4 s$0.91
46 h agoPassed4021.5 s$0.91
2 days agoPassed4022.4 s$0.91
2 days agoPassed4021.3 s$0.91
2 days agoPassed4021.9 s$0.91