Chrome Extension for Gmail
AgentProof scores every Gmail message for agent probability in real time. Know who's human before you invest your attention.
Free forever. No account required. Pro features $7/mo.
What your inbox looks like with AgentProof
"I built AgentProof because I kept getting eerily perfect emails from 'people' who turned out to be AI agents. Sales outreach, partnership requests, even warm intros from mutual connections — all AI. None of it was disclosed."
— Matt, founder · The Meridian Lab
The cost you're not counting
Your inbox isn't just communication — it's deal flow, opportunity, and signal. Every AI agent that disguises itself as a real person consumes attention you can't get back. The ones you can spot are annoying. The ones you can't are costly.
AgentProof distinguishes between three categories — so you know exactly what you're dealing with.
An autonomous system sent this. No human typed it, reviewed it, or decided to send it to you. Fully automated, often from a provisioned identity with no real person behind it.
A human configured this campaign, but didn't type this specific email. Human-initiated outreach automation — not spam, but not a personal message either.
Company transactional email — receipts, login alerts, digests, newsletters. Not an agent, not a human trying to reach you. Filtered out of agent scoring entirely.
A real person wrote this and sent it to you. AgentProof's whitelist system and contact correlation protect against false positives on real people.
Detection Engine
Layered by false-positive risk. Amplified by every user on the network.
ESP Detection
Identifies emails routed through the platforms running AI agent campaigns at scale — even when the From address looks like a real person.
Temporal Analysis
Detects superhuman response speed, exact-interval follow-up cadences, and heartbeat loop patterns that no human would reproduce.
Identity Analysis
Flags senders with no web footprint, generated email addresses, and provisioned domains — the hallmarks of an agent operating at scale.
Active Defense
Invisible traps embedded in your outgoing emails. Any AI that processes your email trips the wire. Zero false positives — and one catch alerts the entire network.
Deep Analysis
Claude examines perplexity, vocabulary patterns, personalization quality, thread coherence, and five more dimensions. Returns a structured verdict with specific evidence — not just a score.
Network Intelligence
When an agent emails anyone on AgentProof, the whole network knows. Flash Alerts trigger automatically when a sender reaches threshold — turning individual catches into collective defense.
Pricing
The free tier catches most agents. Pro adds the traps they can't avoid.
Full detection engine, no account needed.
For founders who refuse to talk to bots.
New detection signals ship regularly. Get notified when we add new techniques, publish agent intelligence reports, or launch major features.
FAQ
Free to install. Takes 30 seconds. Works immediately.
Add to Chrome — It's FreeChrome extension · Works with Gmail · No account required
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