Roundtable Research · May 2026
Roundtable’s latest research argues that modern AI agents still leave measurable behavioral traces that can be exploited for detection.
Proof of Human - invisible human verification
Company research
Public company, workplace, funding, and market signals
Updated Jul 30, 2026
Overview
Roundtable (Proof of Human) is a San Francisco-based AI security company building an invisible, continuous human-verification API that detects bots, AI agents, and fraud using behavioral and device/network signals, with a strong privacy-first and research-led positioning.
Primary product
Proof of Human API
Founded
2023
Headquarters
251 Post Street, San Francisco, CA 94108, United States
Team size
1-10 employees
Industry
Technology, Information and Internet
Sub-industry
AI security / behavioral biometrics
Offices
San Francisco, CA
New York, NY
Business model
B2B SaaS
API
Enterprise software
Funding
Stage
Pre-Seed
Total raised
$500K
Latest round
Pre-Seed · Sep 2023
Latest amount
$500K
Sep 2023 · Y Combinator
Jan 2023
People & investors
Investors
Work & culture
Research-first, academic, privacy-preserving, and benchmark-driven; emphasizes explainable results, low-friction security, and continuous iteration from published research.
Visa sponsorship
Limited
Compensation
A public YC posting for a Sales Development Representative / Account Executive role listed $45K-$180K base salary plus 0.50%-1.00% equity; broader company-wide compensation data was not publicly posted.
Product & market
Pricing
Demo-led / custom quote
Differentiators
- —Invisible, no-CAPTCHA user experience
- —Continuous session-level verification
- —Behavioral + device/network signal fusion
- —Explainable risk scores and evidence trails
- —Privacy-preserving design with no PII collection
- —Research-backed benchmarks and papers
- —Low-latency scoring (<200ms)
- —Works across surveys, panels, and onboarding flows
Technology
JavaScript SDK
React / SPA integration
Behavioral biometrics
Machine learning
Device and network intelligence
Session stitching
sessionStorage
Risk scoring API
Dashboard and exports
Customers
Market research agencies
B2B survey platforms
Survey panels
Financial services
Ticketing and live events
C+R Research
The Directions Group
Obsurvant
Competitors
Google reCAPTCHA
hCaptcha
Cloudflare Turnstile
FingerprintJS Pro
Scale & contact
Estimated revenue
≈$660K ARR (2025 estimate)
Estimated monthly visits
16.4K
Traffic estimate as of Jun 2026
Latest news
Roundtable Research · Oct 2025
Roundtable tests leading AI agents against reCAPTCHA-style challenges and argues that output correctness and process similarity are different signals.
Biometric Update · Aug 2025
External coverage of Roundtable’s Proof of Human launch; highlights the invisible proof-of-human positioning, behavioral biometrics approach, and commercial framing.
Startup Intros / YC launch aggregation · Aug 2025
Launch coverage for Proof of Human, including the product’s anti-bot positioning and a public reference to a $99 entry plan.
Roundtable Research · Aug 2025
Roundtable benchmarks multiple bot-detection systems against modern AI agents and claims behavioral-plus-device approaches outperform device-only systems.
Jobs and careers at Roundtable
0 jobs at Roundtable
No open positions
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