ToolVet
71trust / 100

Seller

by Parallax in Other

x402 APIPassing, checked 5 h ago

The funnel, honestly, for one seller over the indexed window: settled USDC and purchases, distinct buyers, organic share after self-test exclusion, recurring buyers, buyer half-life and the facilitator mix.

GET
https://parallax402.com/v1/seller
Price
$0.03
per call in USDC
Uptime
100%
last 30 days
Response time
2.3 s
2.9 s 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

GET https://parallax402.com/v1/seller

Each call costs $0.03 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.

GET https://parallax402.com/v1/seller?seller=api.onesource.io

Parameters

ParameterTypeRequiredDescription
sellerstringYesthe seller, as its payTo address (0x-prefixed, 20 bytes) or one of its hostnames

Example response

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

{
  "as_of": "2026-09-01",
  "fact": {
    "buyers": 96,
    "facilitators": {
      "coinbase": 0.91,
      "unattributed": 0.09
    },
    "half_life_days": 4,
    "hosts": [
      "api.example.com"
    ],
    "organic_share": 0.958333,
    "payTo": "0xabababababababababababababababababababab",
    "purchases": 3821,
    "recurring_buyers": 12,
    "usdc": 41.02
  },
  "frame": "settler-eip3009-base",
  "tier": "full"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.03.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://parallax402.com/v1/seller?seller=api.onesource.io'

# 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 - 'https://parallax402.com/v1/seller?seller=api.onesource.io' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fparallax402.com%2Fv1%2Fseller
const res = await pay("https://parallax402.com/v1/seller?seller=api.onesource.io");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://parallax402.com/v1/seller?seller=api.onesource.io")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
5 h agoPassed4022.7 s$0.03
10 h agoPassed4022.3 s$0.03
15 h agoPassed4022.2 s$0.03
19 h agoPassed4022.6 s$0.03
24 h agoPassed4022.3 s$0.03
Show 10 older checks
29 h agoPassed4021.2 s$0.03
33 h agoPassed4022.5 s$0.03
37 h agoPassed4022.3 s$0.03
41 h agoPassed4022.4 s$0.03
45 h agoPassed4022.8 s$0.03
2 days agoPassed4023.0 s$0.03
2 days agoPassed4022.5 s$0.03
2 days agoPassed4022.3 s$0.03
3 days agoPassed4022.0 s$0.03
3 days agoPassed4022.5 s$0.03