5,000 FREE Signup Evaluations Every Month.

Every Signup Matters.
Stop Abuse Before It Starts.

Detect fake accounts, bots, and trial abuse with real-time protection through one simple API.

Preview of Simplif fraud dashboard showing risk activity, verdict distribution and recent signup evaluations

Real-Time Intelligence. Better Fraud Decisions.

Email Intelligence

Identify disposable emails, suspicious domains, and repeat signup attempts.

Visualisation of disposable email detection

IP & Network Intelligence

Detect VPNs, proxies, suspicious IP addresses, and high-risk connections.

IP address with connected network risk signals

Device Fingerprinting

Recognise returning devices and uncover multiple accounts linked to the same device.

Device fingerprinting and linked signup accounts

Bot & Automation Detection

Identify automated signups, suspicious browser activity, and bot-like behaviour.

Bot behaviour detection with signup form analysis

Custom Fraud Rules

Build your own protection rules to automatically allow, review, or block suspicious signups.

Custom fraud rule flow: Network, Datacenter IP detected, Review

Simple Integration. Made for Developers.

One simple API. One powerful backend check. No complicated setup.

1

Connect the API

Send signup data securely from your backend to Simplif to evaluate signups before account creation.

2

Evaluate Each Signup

Send the signup to our API from your backend and use its fraud score and verdict in your signup flow.

01 — Connect the API
// Keep your secret key on your server
const SIMPLIF_API_KEY = process.env.SIMPLIF_SECRET_KEY;
const SIMPLIF_API_URL =
  "https://api.simplif.com/v1/signups/evaluate";
02 — Evaluate a Signup · Node.js
// Run on your backend, never in the browser
const response = await fetch(
  "https://api.simplif.com/v1/signups/evaluate",
  {
    method: "POST",
    headers: {
      "x-api-key": process.env.SIMPLIF_SECRET_KEY,
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      email: user.email,
      device_id: deviceId
    })
  }
);
if (!response.ok) throw new Error("Evaluation failed");
const { score, verdict, reasonCodes } =
  await response.json();
5,000 signup evaluations free every month

Choose the Plan That’s Right for You

You can cancel or upgrade your plan at any time.

Free Forever

Basic

Everything you need to explore Simplif.

  • 5,000 evaluations/month
  • Fraud risk scoring
  • Email, device & network intelligence
  • API access & dashboard
Select

$49 /month

Starter

Ideal for growing SaaS platforms.

  • 25,000 evaluations/month
  • All available fraud detection features
  • Custom fraud rules
  • Dashboard & signup reviews
Select

$99 /month

Growth

Built for scaling platforms.

  • 100,000 evaluations/month
  • All available fraud detection features
  • Custom fraud rules
  • Priority support
Select

For custom plans, please reach out to the support team.