Demand Report

{
  "checked_at": "2026-07-29T08:00:00.000Z",
  "coverage": {
    "first_measurement": "<timestamp of our oldest observation, or null>",
    "sources": [
      "unmet-demand telemetry from rejected calls that carried a verified payment proof",
      "free coverage requests",
      "settled paid intents"
    ],
    "window_days": 30
  },
  "disclaimer": "Demand as observed at ONE provider, shaped by what we happen to sell and who happens to find us. Absence of demand here is not evidence of absence of a market.",
  "filed_requests": [
    {
      "distinct_days": 0,
      "distinct_senders": 0,
      "kind": "country",
      "requests": 0,
      "value": "XX"
    }
  ],
  "methodology": "Illustrative placeholder values, not a measurement. Real responses carry the full methodology: only rejections after a verified payment proof count, external traffic only, per-sender spread beside every count, and price stats withheld below 3 named price points.",
  "paid_wants": {
    "distinct_wallets": 0,
    "max_price_usd": {
      "avg": null,
      "max": null,
      "min": null
    },
    "total": 0,
    "with_price": 0
  },
  "unmet_demand": [
    {
      "calls": 0,
      "distinct_days": 0,
      "distinct_wallets": 0,
      "kind": "coin",
      "value": "EXAMPLE-COIN"
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentdata-api.sander-van-aard.workers.dev/x402/demand-report' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# 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://agentdata-api.sander-van-aard.workers.dev/x402/demand-report' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentdata-api.sander-van-aard.workers.dev%2Fx402%2Fdemand-report&method=POST
const res = await pay("https://agentdata-api.sander-van-aard.workers.dev/x402/demand-report", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentdata-api.sander-van-aard.workers.dev/x402/demand-report",
        json={},
    )
    print(res.status_code, res.text)