ToolVet
78trust / 100

Bestsellers

by bazaar-demand in Markets & finance

x402 APIPassing, checked 3 h ago

Top-selling x402 bazaar services by unique paying buyers in the last 30 days. Send {"limit":25}, optionally with {"query":"weather"} or {"max_price_usd":0.01}. Per listing: resource URL, host, price, networks, 30-day calls and unique payers, last call time, and description, plus a host leaderboard. Skips listings whose only payment is their own indexing call. From Coinbase discovery metrics, refreshed every 6 hours.

POST
https://audit.152-53-82-29.sslip.io/v1/bestsellers
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
590 ms
809 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

How to call it

POST https://audit.152-53-82-29.sslip.io/v1/bestsellers

Each call costs $0.01 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://audit.152-53-82-29.sslip.io/v1/bestsellers
content-type: application/json

{
  "limit": 25
}

Parameters

ParameterTypeRequiredDescription
limitintegerNoListings to return, default 25
max_price_usdnumberNoOptional price ceiling in USD
querystringNoOptional keyword filter; every word must match

Example response

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

Example response, 33 lines
{
  "bazaar_listings": 16604,
  "data_as_of": "2026-09-23T22:00:00Z",
  "filter": {
    "max_price_usd": null,
    "query": null
  },
  "listings_with_outside_payers": 4591,
  "notes": [],
  "top_hosts": [
    {
      "calls_30d": 300,
      "host": "netintel.dev",
      "listings": 19,
      "listings_with_demand": 7,
      "max_unique_payers_30d": 8
    }
  ],
  "top_listings": [
    {
      "calls_30d": 41,
      "description": "Convert a PDF URL to clean markdown",
      "host": "netintel.dev",
      "last_called_at": "2026-09-23T15:00:00Z",
      "networks": [
        "eip155:8453"
      ],
      "price_usd": 0.01,
      "resource": "https://netintel.dev/api/pdf-to-markdown",
      "unique_payers_30d": 8
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://audit.152-53-82-29.sslip.io/v1/bestsellers' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":25}'

# 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://audit.152-53-82-29.sslip.io/v1/bestsellers' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":25}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Faudit.152-53-82-29.sslip.io%2Fv1%2Fbestsellers&method=POST
const res = await pay("https://audit.152-53-82-29.sslip.io/v1/bestsellers", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 25
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://audit.152-53-82-29.sslip.io/v1/bestsellers",
        json={
            "limit": 25,
        },
    )
    print(res.status_code, res.text)

Security scan

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