使い捨てメール判定

curl "https://moemail.app/api/tools/v1/disposable-email/check?domain=mailinator.com"
# {"domain":"mailinator.com","disposable":true,"verdict":"high"}

curl "https://moemail.app/api/tools/v1/disposable-email/dataset"
# {"high":8742,"medium":66885,"total":75627,"builtAt":"…","status":"upstream",…}

const ENDPOINT = "https://moemail.app/api/tools/v1/disposable-email/check"

async function verdictFor(domain) {
  const res = await fetch(`${ENDPOINT}?domain=${encodeURIComponent(domain)}`)
  const body = await res.json()
  if (!res.ok) throw new Error(body.code)   // branch on `code`, never on `error`
  return body.verdict
}

// "medium" means "only in the broad aggregator list" — a signal, not a verdict.
// Gate signups on the tier you are willing to defend to a real user.
const verdict = await verdictFor("mailinator.com")
const reject = verdict === "high" || verdict === "ours"

import requests

ENDPOINT = "https://moemail.app/api/tools/v1/disposable-email/check"

def verdict_for(domain: str) -> str:
    r = requests.get(ENDPOINT, params={"domain": domain}, timeout=5)
    r.raise_for_status()
    return r.json()["verdict"]

# Note: use requests (or set an explicit User-Agent). Cloudflare's managed bot
# rules block the default "Python-urllib/3.x" agent with a 403 before the
# request ever reaches this API.

if verdict_for("mailinator.com") in ("high", "ours"):
    ...  # reject the signup

<?php
function verdict_for(string $domain): string {
    $url = 'https://moemail.app/api/tools/v1/disposable-email/check?domain=' . urlencode($domain);
    $ctx = stream_context_create(['http' => [
        'timeout' => 5,
        // Send a real User-Agent: identify your app, and stay clear of any
        // bot rule that keys on a default library agent.
        'header'  => "User-Agent: my-app/1.0\r\n",
    ]]);
    $body = json_decode(file_get_contents($url, false, $ctx), true);
    return $body['verdict'];
}

if (in_array(verdict_for('mailinator.com'), ['high', 'ours'], true)) {
    // reject the signup
}

export default {
  async fetch(request) {
    const email = new URL(request.url).searchParams.get("email") ?? ""
    const domain = email.split("@").pop()

    // Responses are cacheable (s-maxage=86400), so the Cache API turns a
    // repeated lookup into zero subrequests.
    const res = await fetch(
      `https://moemail.app/api/tools/v1/disposable-email/check?domain=${encodeURIComponent(domain)}`,
      { cf: { cacheTtl: 86400, cacheEverything: true } },
    )
    const { verdict } = await res.json()

    return Response.json({ allow: verdict !== "high" && verdict !== "ours" })
  },
}