Demand Clusters

{
  "clusters": [
    {
      "avg_result_count": 0.4,
      "buyer_asks": 44,
      "buyer_client_ips": 6,
      "distinct_clients": 7,
      "distinct_query_texts": 2,
      "example_queries": [
        "ECB reference rates",
        "euro fx rates daily"
      ],
      "label": "ECB reference rates",
      "query_count": 47,
      "self_monitoring_asks": 3,
      "self_monitoring_client_ips": 1,
      "top_categories": {
        "data.fx": 12
      }
    }
  ],
  "clusters_below_privacy_floor": 41,
  "delay_seconds": 0,
  "distinct_query_texts": 312,
  "excluded_short_queries": 18,
  "generated_at": 1790000000,
  "named_listing_lookup_searches": 0,
  "named_listing_lookups": [],
  "refresh_seconds": 900,
  "texts_pending_grouping": 3,
  "total_queries_analyzed": 1234,
  "window_complete": true,
  "window_days": 30,
  "window_ends_at": 1790000000,
  "window_starts_at": 1787400000
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.nohumans.directory/v1/demand/clusters'

# 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://api.nohumans.directory/v1/demand/clusters' \
  | 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 $0.25 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.25" });
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 $0.25 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.nohumans.directory%2Fv1%2Fdemand%2Fclusters
const res = await pay("https://api.nohumans.directory/v1/demand/clusters");
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 $0.25 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.25"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.nohumans.directory/v1/demand/clusters")
    print(res.status_code, res.text)