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API-driven breach detection for apps, sites, and services

Add Powerful Breach Detection to Your Product in Minutes

Add breach detection to any app. Plans from $5/mo.

10B+ breach records<100ms response99.9% uptime

Want to test the data first? Try a free domain check

One of the World's Fastest Breach Lookup API

<100ms
Global Response Time
10B+
Breach Records Indexed
Zero
PII Stored or Logged
99.99%
Uptime Across Regions

Product Preview

Monitoring Your API Usage & Management

API Usage Dashboard

API Documentation

cURL Request

curl -X GET "https://plus-api.xposedornot.com/v3/check-email/email@domain.com?detailed=true" \
  -H "x-api-key: APIKEY" \
  -H "Content-Type: application/json"

Python Request

import requests

url = "https://plus-api-test.xposedornot.com/v3/check-email/email@domain.com"
headers = {
    "x-api-key": "APIKEY",
    "Content-Type": "application/json"
}
params = {
    "detailed": "true"
}

response = requests.get(url, headers=headers, params=params)
result = response.json()
print(result)

Real-time API

Millisecond response times with 99.99% uptime SLA for mission-critical applications

Flexible Integration

Webhooks, callbacks, and batch processing for any use case or architecture

Your Devs Will Love It. Your Legal Team Will Approve It.

No Sensitive Data Required

Pass email or hash. That's it.

Deploy in Under 15 Minutes

Fully REST-based with plug-and-play examples.

Zero Storage, Zero Headaches

Nothing stored. Nothing to clean up. Nothing to audit.

Designed for Scale

From 10K to 100M lookups/month, with flat, predictable pricing.

What our users are saying

Discover why organizations trust us with their security needs

S

Sundar Kumar

Corent

"Xposedornot is a useful tool for data breach alerting system. Every organization requires this tool to receive timely alerts of their exposed breaches. Its user-friendly design and seamless integration make it a valuable asset for proactive data security."

M

Miguel Mendes

Bluecom

"Indispensable to monitor the exposure of your personal data. What I like most about ExposedOrNot is its real-time dashboard alerts, as well as integration with Slack and Teams, are very practical features to be informed immediately in the event of a compromise."

B

Bertold Kolics

Verosint

"I have been working with XposedOrNot from the early days. My experience could not have been better. The service scales well, performs well under high load and it has a large set of breach data dating back to several years."

S

Senthil K

Invicara

"I love how XposedOrNot makes protecting our data so simple and effective from ATO. The alerts are timely, and the CXO dashboard gives a clear picture of breach trends and risks. It's more than just a tool, it's like having a personal assistant for your security, helping you understand and manage threats before they become serious issues."

S

Sundar Kumar

Corent

"Xposedornot is a useful tool for data breach alerting system. Every organization requires this tool to receive timely alerts of their exposed breaches. Its user-friendly design and seamless integration make it a valuable asset for proactive data security."

M

Miguel Mendes

Bluecom

"Indispensable to monitor the exposure of your personal data. What I like most about ExposedOrNot is its real-time dashboard alerts, as well as integration with Slack and Teams, are very practical features to be informed immediately in the event of a compromise."

B

Bertold Kolics

Verosint

"I have been working with XposedOrNot from the early days. My experience could not have been better. The service scales well, performs well under high load and it has a large set of breach data dating back to several years."

S

Senthil K

Invicara

"I love how XposedOrNot makes protecting our data so simple and effective from ATO. The alerts are timely, and the CXO dashboard gives a clear picture of breach trends and risks. It's more than just a tool, it's like having a personal assistant for your security, helping you understand and manage threats before they become serious issues."

Integrate Breach Detection Into Your App

Plans from $5/mo. No long-term contracts.

30-day money-back guarantee

Simple Integration

Add breach detection in 3 lines of code

// Check if email is in a breach
const response = await fetch(
  'https://api.xposedornot.com/v1/check-email/[email-hash]',
  { headers: { 'x-api-key': 'your_api_key' } }
);

const data = await response.json();
// { "breaches": ["LinkedIn2021", "Adobe"], "count": 2 }
<100ms response
1

Get Your API Key

Sign up and get your API key instantly. No credit card required for free tier.

2

Make a Request

Query by email hash, domain, or phone. Get results in under 100ms.

3

Use the Data

Receive structured JSON with breach names, dates, and exposed data types.

Easy Integrations

Plug xonAPI Plus Into the Stack You Already Use

Developer-First Integration

Built for developers, by developers. Get up and running in minutes with our comprehensive SDK and documentation.

5minsetup time with
our quick start guide

What makes integration simple

  • Multiple Language Support

    JavaScript, Python, Go, Java, and more

  • Complete Documentation

    Detailed Swagger docs, and interactive examples

  • Production Ready

    Rate limiting, authentication, and 99.9% uptime SLA

Pricing

Transparent Pricing. No Query Surprises.

Starter

$5.00
$5.00 billed every month
API up to 50 RPM
Perfect for testing & prototypes
Cancel anytime

Growth

$21.00
$21.00 billed every month
API up to 250 RPM

Ultimate

$73.00
$73.00 billed every month
API up to 1250 RPM
Priority support
MOST POPULAR

UltimatePlus

$147.00
$147.00 billed every month
API up to 2500 RPM
Priority support

Extreme

$297.00
$297.00 billed every month
API up to 5000 RPM
Priority support
CUSTOM

Custom Plan

Contact us for pricing
Unlimited API requests
Dedicated support
Custom integrations
SLA guarantees
Enterprise features

Frequently Asked Questions

Get answers to common questions about our API

Add Breach Detection to Your App, In Just 15 Minutes

Live in 15 minutes. 30-day money-back guarantee.