VeryAI is now Very.
Keep your agents in line. Very’s Know Your Agent (KYA) tools ensure that agents are working on behalf of a real user, and keep agents from stepping over guardrails.
Agents can (and will) do anything, even if it’s not your intention.
A 2026 study showed that when agents compact context, they break constraints. Spend limit failures jumped from 0% pre-compacting to between 30-59% post-compacting, depending on the model.(1)
Read the study
In 2025, an agent deleted a production database before immediately explaining what rules it had broken.(2)
Read the article
In a Wall Street Journal test, an agent ran an office vending machine. Employees quickly found workarounds and convinced it to break its constraints, giving away PlayStations and wine.(3)
Read the articleAgent registration
When the agent hits a predetermined limit
With a base of real-world palm verifications that is difficult for agents to fake, KYA builds the human-owned guardrails for the agentic economy.
Agent’s flow
Find a flightDone
Send $4,800Sent
Book the seatsDone
Very app
Alex verified
The liveness test is a truly randomized action that is hard to spoof. It guarantees that a human must be present to complete an action.
Standard smartphone
More than 85%
of the global smartphone market
Like many agent interfaces, Very’s palm biometrics are meant to live on smartphones. Our testing estimates that Very can be run on more than 6 billion phones worldwide.
Any platform can integrate KYA in 10 minutes or less using a simple attestation and a few lines of code. Once the agent is linked, it prompts verification at moments your platform defines.
Integration guide
Agent context
// The agent sends a signed action in the Kya-Action header
const res = await fetch('https://api.very.org/kya/v1/actions/verify', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
action_token: req.headers['kya-action'],
expected_aud: 'https://shop.example',
expected_action_hash: hash(action),
}),
})
const verdict = await res.json()
// valid = live agent, owner in good standing, not replayed
if (verdict.valid) allow(verdict.owner_id)
verified in 67ms
Know Your Customer (KYC) is a class of products that verify the identity of users on a platform, usually with a mixture of government document verification and biometrics or other secondary authentication. It’s most commonly used for finance or other high-value, highly-regulated industries.
Know Your Agent (KYA), on the other hand, verifies the authenticity of agents. Without government documents or biometrics of its own, Very’s Know Your Agent links agents directly to a registered, verified Very user. That user then uses their own palm biometrics to prove that an agent is acting on their behalf. Because Very is a biometrics vendor, not a KYC provider, users do not require IDs at any point of the process.
It won’t slow down workflows any more than other checks with a human. Once the agent hits a limitation or checkpoint set up by the platform, the user will be required to complete a liveness check within the Very app. That liveness check takes 2 seconds or less.
Know Your Agent provides platforms with authentication proof. To enforce spending limits, they can set up platform-side policies that can use Very’s authentication. See here for specifics on how to set up spending limits and other integrations.
Integrating Know Your Agent for agent verification is extremely simple and only requires a short JWT attestation with 4 lines of code. There is no API needed. It takes 10 minutes or less once you receive your credentials. Learn more about integration in the docs.
Very works with outside researchers (like the Human-AI Collaboration Lab, located at Northwestern University) to stay ahead of the latest advances.
Very introduces a number of protections against spoofed or deepfake results, including: randomized motion checks, camera-frame analysis, checks for issues like palm positioning, lighting, blurriness, and more, server-issued protections like one-time nonces to protect against replay, and others.
Book your introductory call to start your integration.