MentionFox
Home › funding signals › Proof of Human
Accelerator · announced

Proof of Human (YC S23) — continuous human verification without CAPTCHAs or user friction

Proof of Human is an API that invisibly detects bots and verifies human identity. Founded by Princeton cognitive scientists, Proof of Human leverages world-class research with industry-beating benchmarks so platforms can verify their human users friction-free.

Proof of Human is a Y Combinator company in the Summer 2023 batch. Its directory entry describes it as: continuous human verification without CAPTCHAs or user friction. The founders listed are Mayank Agrawal (Founder), Matt Hardy (Founder) (Y Combinator directory entry, May 31, 2023).

6 more companies from YC Summer 2023 ↓

Run the free check on Proof of Human →

Sell to companies like Proof of Human? Enter your website and see 10 with a filed reason to buy from you this month. Free.

Opens in a new tab. No signup.

Proof of Human

New accelerator entry · 2023-05-31 · the record

Summer 2023
batch
5
people
Early
stage
United States of America
region
Open the record →

What the record says

BatchSummer 2023
Announced2023-05-31
StageEarly
StatusActive
Team size5
IndustryB2B
Sub-industryB2B -> Security
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringYes
Sitehttps://poh.org
Founded2023
YC group partnerNicolas Dessaigne
Previously known asRoundtable, Proof of Human, PBC

Pitching, partnering or investing alongside them? See who really runs and owns Proof of Human.

Free to see. No signup.

Keep reading

More on Proof of Human and the records around it.

Also in YC Summer 2023

Same batch, B2B first.

What do you want to do with Proof of Human?

Get the full cited report on Proof of Human

Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

A Full Report on Proof of Human: verified, sourced, every claim cited, ready in a few minutes. See pricing.

See a sample report

In their words

Proof of Human is an API that invisibly detects bots and verifies human identity. Founded by Princeton cognitive scientists, Proof of Human leverages world-class research with industry-beating benchmarks so platforms can verify their human users friction-free.

Want the whole picture on Proof of Human?

Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

A Full Report on Proof of Human: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on Proof of Human covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    1 cited source found

Plus the sections for what you are deciding, which you pick after ordering.

See a sample report

First screen of a real sample Full Report on EchoStar: the verdict, 17 sections, 63 cited sources, built 2026-10-21A real finished report, first screen. Opens in a new tab.

The full profile

Checking your access…

Is this you?

If you're behind Proof of Human: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. GetFoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry.

RSS

Tools for this story

Each opens in a new tab, filled in for Proof of Human. With no account yet, you sign up free and land on the result.

On these startup lists

Cybersecurity startups

Share this page

Is this your company?

Share the news. Sharing needs no account.

Proof of Human: Accepted into Y Combinator Summer 2023
Share on LinkedIn Share on X Download image

Cite this page

Permanent URL: https://mentionfox.com/funding/yc-proof-of-human
Last updated 2026-10-29
Primary record: Y Combinator directory entry
Proof of Human (YC S23) — continuous human verification without CAPTCHAs or user friction. MentionFox, 2026-10-29. https://mentionfox.com/funding/yc-proof-of-human