Niche

{
  "bazaar_listings": 16604,
  "data_as_of": "2026-09-23T22:00:00Z",
  "demand": {
    "calls_30d": 552,
    "listings_with_outside_payers": 6,
    "max_unique_payers_30d": 8,
    "median_unique_payers_30d_among_demand": 4,
    "share_with_outside_payers": 0.24
  },
  "match_mode": "all-words",
  "notes": [
    "Every indexed listing has at least one payment (the indexing call). Demand here means 2 or more unique payers."
  ],
  "price_usd": {
    "all": {
      "max": 0.1,
      "median": 0.01,
      "min": 0.001,
      "n": 25,
      "p25": 0.005,
      "p75": 0.02
    },
    "with_demand": {
      "max": 0.02,
      "median": 0.01,
      "min": 0.005,
      "n": 6,
      "p25": 0.005,
      "p75": 0.01
    }
  },
  "query": "pdf to markdown",
  "supply": {
    "called_last_7d": 12,
    "hosts": 19,
    "listings": 25
  },
  "top_hosts": [
    {
      "calls_30d": 45,
      "host": "netintel.dev",
      "listings": 2,
      "listings_with_demand": 1,
      "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
    }
  ],
  "verdict": {
    "label": "contested",
    "reason": "19 hosts sell this, and 6 of 25 listings have outside payers. Compete on price, schema quality, or a narrower angle."
  }
}

# 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/niche' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":10,"query":"pdf to markdown"}'

# 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/niche' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":10,"query":"pdf to markdown"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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%2Fniche&method=POST
const res = await pay("https://audit.152-53-82-29.sslip.io/v1/niche", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 10,
    "query": "pdf to markdown"
  }),
});
console.log(res.status, await res.text());

# 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/niche",
        json={
            "limit": 10,
            "query": "pdf to markdown",
        },
    )
    print(res.status_code, res.text)