Check a page's facts against official sources

curl -X POST \
  -H "Authorization: Bearer mr_ws_…" \
  -H "Content-Type: application/json" \
  -d '{"language":"en"}' \
  "https://app.monoranks.com/api/v1/sites/SITE_ID/pages/PAGE_ID/claim-check"

const res = await fetch("https://app.monoranks.com/api/v1/sites/SITE_ID/pages/PAGE_ID/claim-check", {
  method: "POST",
  headers: { Authorization: "Bearer mr_ws_…", "Content-Type": "application/json" },
  body: JSON.stringify({
    "language": "en"
  }),
});
if (!res.ok) throw new Error((await res.json()).error.message);
const data = await res.json();

import requests

res = requests.post(
    "https://app.monoranks.com/api/v1/sites/SITE_ID/pages/PAGE_ID/claim-check",
    headers={"Authorization": "Bearer mr_ws_…"},
    json={
        "language": "en",
    },
)
res.raise_for_status()
data = res.json()

<?php
$ch = curl_init("https://app.monoranks.com/api/v1/sites/SITE_ID/pages/PAGE_ID/claim-check");
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_HTTPHEADER => ["Authorization: Bearer mr_ws_…", "Content-Type: application/json"],
    CURLOPT_POSTFIELDS => '{"language":"en"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

import axios from "axios";

const { data } = await axios.post(
  "https://app.monoranks.com/api/v1/sites/SITE_ID/pages/PAGE_ID/claim-check",
  {
    "language": "en"
  },
  { headers: { Authorization: "Bearer mr_ws_…" } },
);

{
  "page": {
    "id": "c7a9e1b3-5d7f-4b9c-8e1a-3c5e7a9b1d2f",
    "url": "https://acmebikes.com/guides/ga4-privacy/"
  },
  "check": {
    "checkedAt": "2026-10-10T09:14:02.000Z",
    "pageText": "live",
    "linksFound": 3,
    "summary": {
      "claims": 3,
      "matches": 1,
      "differs": 1,
      "unverified": 1
    },
    "claims": [
      {
        "claim": "GA4 offers an option for IP anonymization",
        "onPage": "GA4 offers an option for IP anonymization, so switch it on first.",
        "about": "Google Analytics 4",
        "source": {
          "url": "https://support.google.com/analytics/answer/2763052",
          "domain": "support.google.com",
          "from": "suggested",
          "read": true
        },
        "verdict": "differs",
        "reason": null,
        "sourceSays": "In Google Analytics 4, IP masking is not necessary since IP addresses are not logged or stored.",
        "note": "Google says GA4 does not log or store IP addresses, so IP masking is not needed."
      },
      {
        "claim": "Consent Mode lets Google model conversions when visitors decline cookies",
        "onPage": "Consent Mode lets Google model conversions when visitors decline cookies.",
        "about": "Google Consent Mode",
        "source": {
          "url": "https://developers.google.com/tag-platform/security/concepts/consent-mode",
          "domain": "developers.google.com",
          "from": "page_link",
          "read": false
        },
        "verdict": "unverified",
        "reason": "not_read",
        "sourceSays": null,
        "note": null
      },
      {
        "claim": "GA4 keeps user-level data for at most 14 months",
        "onPage": "GA4 keeps user-level data for at most 14 months.",
        "about": "Google Analytics 4",
        "source": {
          "url": "https://support.google.com/analytics/answer/7667196",
          "domain": "support.google.com",
          "from": "page_link",
          "read": true
        },
        "verdict": "matches",
        "reason": null,
        "sourceSays": "For GA4 properties, user-level data can be retained for 2 months or 14 months.",
        "note": "Google lists 14 months as the longest retention for user-level data."
      }
    ],
    "notesLanguage": "en",
    "model": "claude-sonnet-4-6"
  },
  "cost": {
    "sourcesTried": 3,
    "sourcesRead": 2,
    "aiReused": false
  },
  "link": "https://app.monoranks.com/sites/3f6c2a1e-8b4d-4c7a-9e21-5d0b7a6f4c13/pages/c7a9e1b3-5d7f-4b9c-8e1a-3c5e7a9b1d2f#claim-check"
}

{
  "error": {
    "code": "missing_argument",
    "message": "page_id or url is required."
  }
}

{
  "error": {
    "code": "missing_key",
    "message": "Send the key as Authorization: Bearer mr_site_…"
  }
}

{
  "error": {
    "code": "missing_scope",
    "message": "This key does not have the scope this call needs."
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Page not found. Use a page_id from page_findings or list_pages, or the exact crawled url."
  }
}

{
  "error": {
    "code": "no_text",
    "message": "MonoRanks could not read the text of this page, so it cannot find its claims."
  }
}

{
  "error": {
    "code": "rate_limited",
    "message": "More than 1200 requests this hour for this key."
  }
}

{
  "error": {
    "code": "failed",
    "message": "The facts could not be checked right now. Try again in a few minutes."
  }
}