THE PRODUCT

The complete human-verification layer for surveys and panels.

You are not buying 1,000 responses. You are buying 1,000 independent opinions. VerifyHuman measures whether you got them — checking traffic at the door silently, with nothing for respondents to do, and adding a camera check only where your study needs it. No images. No identity.

Read the docs Talk to us

Public docs — no login required. Get a secret key when you're ready.

TWO SCORES, NOT ONE

“Is this fraud?” and “is this independent?” are different questions.

Most tools collapse them into one number, which forces an argument about a single respondent. We answer both, separately — and neither score can move the other.

Risk

Does this session look like fraud? Six kinds of evidence — network, device, speed, behaviour, track record and repeat visits — combined into one Allow, Review or Block result, with cut-offs you set for your own traffic.

Independence

How independent is this response from the rest of your sample? A returning respondent is not a fraudster, and a sample can be shown to lack independence without accusing anyone of anything. This is the number a research buyer actually pays for.

THREE LEVELS OF PROTECTION

Silent by default. A camera only where you want one.

VerifyHuman checks for real people without interrupting them. You choose how much proof you want for each project — your respondents barely notice either way.

Level

What it does

Your respondent sees

Step 01
Silent check · Server API
What it does
Your server sends us each respondent and gets back Allow, Review or Block, judged on their network, device and track record. Nothing is added to the page.
Your respondent sees
Nothing
Step 02
Silent check · On your page
What it does
A small script on your page also sees how the respondent behaves there and catches automated browsers — still nothing to see or do.
Your respondent sees
Nothing
Step 03
Quick or Full camera check
What it does
A few seconds of camera to prove a live, unique person. Use it for a whole study, or turn on the option that lets an unsure silent check ask for it.
Your respondent sees
A short camera check

One platform, three levels. Start silent; add a camera check where a study needs it — or let an unsure silent check ask for one (an option, off by default) — so good respondents sail through.

How it works

It is one scoring system. A silent check on the Server API works from what your server sends us; the script on your page adds what it sees there; a camera check adds proof of a live, unique person. If you turn the option on, an unsure silent check on your page moves the respondent to a camera check.

FOUR WAYS TO VERIFY

Choose the level of proof each study needs.

Same platform, same results — Allow, Review or Block. Start as light as your study allows; a silent check on your page can optionally ask for a camera check when it is unsure (off by default).

Sees: Nothing

Server API

Your server makes one call per respondent and gets back Allow, Review or Block, judged on network, device, speed, repeat visits and track record. No camera and nothing on the page. Fits where your current quality check runs.

Panels & supply you can’t put code on

Integrate it

Sees: Nothing

Silent

A small script on your page adds how the respondent behaves there and catches automated browsers, on top of everything the Server API checks. Still nothing to see and nothing to do.

Pages you own, zero friction

Integrate it

Sees: One click, a short camera check

Quick camera check

One click, then a camera check of a few seconds that confirms a live person is present.

Light biometric proof, barely-there friction

Integrate it

Sees: A ~5-second check

Full camera check

A full camera check: a live face, short challenges when needed, protection against photos and replays, and a check that the same face has not taken part before. The strongest proof of a live, unique person.

Paid panels, high-incentive, fraud-sensitive

Integrate it

THE EVIDENCE WE REFUSE TO USE

Anyone can flag more. The hard part is not accusing the innocent.

A false rejection costs a panel a good respondent, an incentive, and a reputation. So parts of our system exist purely to throw evidence away.

Shared machines stay shared

People who used the same library or office computer are not a fraud ring. When a group of accounts only holds together through one shared device, we test for it and decline to score the group.

A fingerprint is not a person

Two people with the same phone model and browser version produce the same device fingerprint. When an identity turns up on many unrelated networks — or in two places at once — we withdraw it entirely rather than accuse anyone.

Absence is never a pass

“We checked and it was clean” and “we could not check” are different answers. We tell you which one you got, so a check that could not run never looks like a good result.

BUILT INSIDE A PANEL

Calibrated on real panel traffic, not a vendor's sample.

A detection vendor sees one customer's traffic at a time. We sit inside a panel — so the models are tuned on the full width of real supply, across hundreds of sources.

730: supply sources profiled
848K: panel history records
660K: sessions scored monthly
~37: respondent languages

EVERY WAY TO WIRE IT IN

From a backend call to a survey redirect — pick the surface you own.

The same verification, three places to run it: from your server, on your page, or with a survey link in the survey platform you already use. Every one returns the same result — Allow, Review or Block.

Backend

Server-to-server

Check a respondent from your own server with nothing added to the page. Have results sent to your systems, or manage projects and keys from an AI assistant.

· Server API — one HTTPS call per respondent
· Webhooks — results sent to you
· MCP — manage projects from Claude or another AI assistant

See how

On the page

On your page, five ways

One script for every kind of site — then choose Silent, Quick camera check or Full camera check for each project.

· HTML — one <script> tag
· React & Next.js components
· Plain TypeScript / JavaScript
· Silent · Quick camera check · Full camera check

See how

Survey platforms

Where you already work

A survey link works with any survey tool, no code needed; five platforms that accept custom JavaScript can also run the check inside the survey. Each respondent comes back to your survey with their result.

· Survey link — any platform, no code (incl. SurveyMonkey · Typeform)
· On your page inside Qualtrics · Forsta · Alchemer · LimeSurvey · Sawtooth
· Panels: Cint · Dynata routing

See how

INTEGRATE IN AN AFTERNOON

The Server API is a single call.

For traffic where you can't add code to the page, check each respondent from your server, where your current quality check runs. Read recommendation and act on it.

POST https://vhuman.riwi.com/api/v1/lite/score
Authorization: Bearer <your secret key>
Content-Type: application/json

{ "sessionId": "<your-id>",
  "clientIp":  "<respondent-ip>",
  "userAgent": "<respondent-ua>",
  "sourceId":  "<your-supply-source>" }

// → read  response.recommendation   (allow | review | block | step_up)

Every field and value, how to hash respondent IDs, and how to send us outcomes are in the Server API scoring reference. Prefer to run it on your page? The SDK drops in with one script tag, React, Next.js or plain TypeScript.

BUILT TO BE TRUSTED

Strong checks, soft footprint.

No images, no identity

The camera picture is checked on the device and never leaves it — only face measurements that cannot be turned back into a face are sent. No photos are stored, and VerifyHuman never learns who anyone is — GDPR- and BIPA-aware by design.

Respondents keep going if we are down

By default, if VerifyHuman cannot be reached, the respondent continues and the response is marked for review. Fraud-sensitive studies can choose to stop respondents instead.

Calibrated to your traffic

You set the score where Review and Block start, per traffic source. Tell us the outcomes you see and future scores use them. You keep both your response rate and your data quality.

Every decision shows its work

Each score comes with the evidence behind it — every finding, whether it counted, and how the score was worked out at that moment. When a rejection is disputed, you get an answer instead of a shrug.

LEARN MORE

Everything a partner or an AI coding agent needs to ship.

Pricing is at /pricing. For an agent-readable spec, see llms.txt.

READY TO VERIFY

Stop fraud at the door — without collecting faces or names.

Sign up free and run VerifyHuman on your next study today. Or talk to us about embedding it across your survey infrastructure.

The complete human-verification layer for surveys and panels.

“Is this fraud?” and “is this independent?” are different questions.

Risk

Independence

Silent by default. A camera only where you want one.

Choose the level of proof each study needs.

Server API

Silent

Quick camera check

Full camera check

Anyone can flag more. The hard part is not accusing the innocent.

Shared machines stay shared

A fingerprint is not a person

Absence is never a pass

Calibrated on real panel traffic, not a vendor's sample.

From a backend call to a survey redirect — pick the surface you own.

Server-to-server

On your page, five ways

Where you already work

The Server API is a single call.

Strong checks, soft footprint.

No images, no identity

Respondents keep going if we are down

Calibrated to your traffic

Every decision shows its work

Everything a partner or an AI coding agent needs to ship.

Ways to verify

Server API

SDK

AI agents & developers

Stop fraud at the door — without collecting faces or names.