ToolVet
80trust / 100

Events Job State Reachability

by detect.halowerk.com in Other

x402 APIPassing, checked 3 h ago

An agent that implements asynchronous jobs needs evidence of unreachable terminal states and outgoing transitions from declared final states.

POST
https://detect.halowerk.com/v1/events/job-state-reachability
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
112 ms
147 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

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://detect.halowerk.com/v1/events/job-state-reachability

Each call costs $0.002 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://detect.halowerk.com/v1/events/job-state-reachability
content-type: application/json

{
  "artifact": {
    "initial": "queued",
    "terminal": [
      "done"
    ],
    "transitions": [
      [
        "queued",
        "running"
      ],
      [
        "running",
        "done"
      ]
    ]
  }
}

Parameters

ParameterTypeRequiredDescription
artifactobjectYes

Example response

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

Example response, 35 lines
{
  "billable": true,
  "findings": [
    {
      "confidence": 100,
      "evidence": [
        {
          "page_indices": [],
          "page_url": null,
          "pattern": "job-state-reachability_scoped_evidence",
          "type": "artifact"
        }
      ],
      "limits": [
        "Only supplied artifact values are measured; no network access or runtime behavior is verified."
      ],
      "module": "job-state-reachability",
      "module_cpu_ms": 0,
      "state": "not_observed",
      "value": {
        "outgoing_final_transitions": 0,
        "reachable_states": 3,
        "unreachable_terminals": 0
      },
      "warnings": []
    }
  ],
  "known_count": 1,
  "scope": {
    "contact_values_returned": false,
    "network": false,
    "supplied_artifact_only": true
  },
  "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 $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://detect.halowerk.com/v1/events/job-state-reachability' \
  -H 'content-type: application/json' \
  --data-raw '{"artifact":{"initial":"queued","terminal":["done"],"transitions":[["queued","running"],["running","done"]]}}'

# 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://detect.halowerk.com/v1/events/job-state-reachability' \
  -H 'content-type: application/json' \
  --data-raw '{"artifact":{"initial":"queued","terminal":["done"],"transitions":[["queued","running"],["running","done"]]}}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdetect.halowerk.com%2Fv1%2Fevents%2Fjob-state-reachability&method=POST
const res = await pay("https://detect.halowerk.com/v1/events/job-state-reachability", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "artifact": {
      "initial": "queued",
      "terminal": [
        "done"
      ],
      "transitions": [
        [
          "queued",
          "running"
        ],
        [
          "running",
          "done"
        ]
      ]
    }
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://detect.halowerk.com/v1/events/job-state-reachability",
        json={
            "artifact": {
                "initial": "queued",
                "terminal": [
                    "done",
                ],
                "transitions": [
                    [
                        "queued",
                        "running",
                    ],
                    [
                        "running",
                        "done",
                    ],
                ],
            },
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

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