ToolVet
75trust / 100

Trust Economic Loop Detector

by Economic Loop Detector in Markets & finance

x402 APIPassing, checked 7 min ago

Detect self and reciprocal transaction patterns without treating correlation as fraud

POST
https://phion.systems/v1/paid/trust/economic-loop-detector
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
538 ms
748 ms slowest 5%
Last check
Passed
7 min ago, next in 21 min

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://phion.systems/v1/paid/trust/economic-loop-detector

Each call costs $0.004 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

The listing has no example input.

POST https://phion.systems/v1/paid/trust/economic-loop-detector
content-type: application/json

{}

Example response

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

{
  "assessment": {
    "confidence": 0.5,
    "risk_band": "review"
  },
  "receipt": {
    "signature": "base64url"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://phion.systems/v1/paid/trust/economic-loop-detector' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# 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://phion.systems/v1/paid/trust/economic-loop-detector' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fphion.systems%2Fv1%2Fpaid%2Ftrust%2Feconomic-loop-detector&method=POST
const res = await pay("https://phion.systems/v1/paid/trust/economic-loop-detector", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://phion.systems/v1/paid/trust/economic-loop-detector",
        json={},
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
7 min agoPassed402596 ms$0.004
5 h agoPassed402537 ms$0.004
10 h agoPassed402138 ms$0.004
14 h agoPassed402139 ms$0.004
19 h agoPassed402560 ms$0.004
Show 10 older checks
24 h agoPassed402592 ms$0.004
28 h agoPassed402561 ms$0.004
32 h agoPassed402567 ms$0.004
36 h agoPassed402543 ms$0.004
41 h agoPassed402147 ms$0.004
45 h agoPassed402626 ms$0.004
2 days agoPassed402748 ms$0.004
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3 days agoPassed402637 ms$0.004