Listings Verdict

{
  "as_of": 1790000000,
  "endpoint_url": "https://seller.example/v1/quote",
  "listing_id": "00000000-000",
  "method_note": null,
  "onchain_30d": {
    "payments": 212,
    "source": "base",
    "unique_payers": 9,
    "volume_usd": 1.06
  },
  "paid_verification": {
    "tx_hash": "0x…",
    "verified": true
  },
  "payto": {
    "address": "0x…",
    "distinct_recent": 1,
    "first_seen_at": 1788200000,
    "shared_by_listings": 1,
    "stable_since": 1788200000,
    "unstable": false
  },
  "price": {
    "declared": 0.005,
    "matches": true,
    "observed_usd": 0.005
  },
  "probe": {
    "consecutive_failures": 0,
    "last_probed_at": 1789999100,
    "last_reason": null,
    "neutral_streak": 0,
    "p50_latency_ms": 180,
    "p95_latency_ms": 420,
    "probe_count": 1450,
    "score": 0.98
  },
  "purchase_history": "https://api.nohumans.directory/v1/listings/00000000-000/purchases",
  "reasons": [
    "verified, delivering when paid, stable payTo, price as declared"
  ],
  "rule": "https://nohumans.directory/methodology#verdict",
  "self_referential": false,
  "status": "verified",
  "verdict": "pay",
  "verification_rule": "https://nohumans.directory/methodology#wg-verification",
  "verified_via": "POST"
}

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

# 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/listings/:id/verdict' \
  | 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 $0.005 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.nohumans.directory%2Fv1%2Flistings%2F%3Aid%2Fverdict
const res = await pay("https://api.nohumans.directory/v1/listings/:id/verdict");
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 $0.005 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.get("https://api.nohumans.directory/v1/listings/:id/verdict")
    print(res.status_code, res.text)