ToolVet
80trust / 100

Bazaar Visibility Change

by Agent Mercantile in Search & web

x402 APIPassing, checked 4 h ago

Compare one x402 resource's Coinbase Bazaar discovery visibility with a caller-held baseline: merchant presence, discovery metadata, schema metadata, visible payment fields, and top-20 position for 1–3 buyer queries. Not a VM05 replacement, direct payment-contract probe, global rank, or remediation advice.

POST
https://api.agentmercantile.com/v1/bazaar-visibility-change
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
297 ms
459 ms slowest 5%
Last check
Passed
4 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://api.agentmercantile.com/v1/bazaar-visibility-change

Each call costs $0.005 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://api.agentmercantile.com/v1/bazaar-visibility-change
content-type: application/json

{
  "pay_to": "0x0000000000000000000000000000000000000001",
  "queries": [
    "example paid json api"
  ],
  "resource": "https://api.example.com/v1/paid"
}

Parameters

ParameterTypeRequiredDescription
baselineobjectNoOptional caller-held sealed baseline.
pay_tostringYes
queriesarray of stringYes
resourcestring (uri)Yes

Example response

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

{
  "decision": "BASELINE_CREATED",
  "machine": "VM11",
  "methodology_version": "bazaar-visibility-change-0.1.0",
  "status": "OK"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.agentmercantile.com/v1/bazaar-visibility-change' \
  -H 'content-type: application/json' \
  --data-raw '{"pay_to":"0x0000000000000000000000000000000000000001","queries":["example paid json api"],"resource":"https://api.example.com/v1/paid"}'

# 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://api.agentmercantile.com/v1/bazaar-visibility-change' \
  -H 'content-type: application/json' \
  --data-raw '{"pay_to":"0x0000000000000000000000000000000000000001","queries":["example paid json api"],"resource":"https://api.example.com/v1/paid"}' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentmercantile.com%2Fv1%2Fbazaar-visibility-change&method=POST
const res = await pay("https://api.agentmercantile.com/v1/bazaar-visibility-change", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "pay_to": "0x0000000000000000000000000000000000000001",
    "queries": [
      "example paid json api"
    ],
    "resource": "https://api.example.com/v1/paid"
  }),
});
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.agentmercantile.com/v1/bazaar-visibility-change",
        json={
            "pay_to": "0x0000000000000000000000000000000000000001",
            "queries": [
                "example paid json api",
            ],
            "resource": "https://api.example.com/v1/paid",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402271 ms$0.005
8 h agoPassed402309 ms$0.005
13 h agoPassed402418 ms$0.005
17 h agoPassed402258 ms$0.005
22 h agoPassed402284 ms$0.005
Show 10 older checks
26 h agoPassed402392 ms$0.005
30 h agoPassed402258 ms$0.005
35 h agoPassed402290 ms$0.005
39 h agoPassed402195 ms$0.005
43 h agoPassed402390 ms$0.005
47 h agoPassed402293 ms$0.005
2 days agoPassed402259 ms$0.005
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3 days agoPassed402260 ms$0.005
3 days agoPassed402289 ms$0.005