AT1C
AT1C Protocol — EU AI Act Compliance for SMEs
⏰ EU AI Act enforcement begins August 2026

EU AI Act compliance doesn't have to cost €400,000

Large companies will spend up to €2 million per year on AI Act compliance. AT1C gives SMEs and developers the same verifiable accountability — as a free, open-source SDK you can wrap around your existing system in a day.

Big Tech compliance cost: €400k–€2M/yr  ·  AT1C: free, open source, MIT licensed

The compliance gap

Without AT1C

No verifiable human oversight

Your AI agent acts. There is no record that a human approved the specific action. Under the EU AI Act, that is a liability — not a technicality.

With AT1C

Every action has a signed receipt

Every AI agent action is backed by a cryptographically signed proof of human approval — independently verifiable by any auditor, regulator, or counterparty.

What the EU AI Act requires — and what AT1C delivers

📋

Accountability for automated decisions

Regulators need to know who authorised an AI action and when.

✓ AT1C receipt binds user, action, and timestamp
👁️

Human oversight of high-risk actions

High-risk AI systems must have a human in the loop before execution.

✓ AT1C requires explicit approval before any action runs
🗂️

Auditable records of AI behaviour

You need to produce evidence of what your AI did and why.

✓ Every AT1C receipt is a signed, verifiable audit record
🔒

Non-custodial by design

AT1C never holds your signing keys. Your data stays yours.

✓ Keys stay on your device — AT1C holds nothing

How it works — four steps

1

Request

Your AI agent asks permission for a specific action

2

Approve

A human explicitly grants or denies it

3

Proof

A signed receipt is generated — your compliance evidence

4

Verify

Any auditor verifies independently — no trust required

Why AT1C, not a €400k compliance programme

Open source

Free to use, forever

MIT licensed. No vendor lock-in. Inspect every line of the protocol yourself.

One day

Wrap your existing system

AT1C doesn't replace your stack — it adds a verifiable consent layer on top of what you already have.

Live today

Registry already running

registry.at1c.com is live. Register your agent, start generating receipts, show auditors evidence on day one.

For developers

One npm install

npm install @at1c/sdk — Ed25519 signing, receipt generation, and verification, ready to go.

August 2026 is closer than it looks

Get your AI agents compliant today. Free account, live registry, open protocol.

Create free account Read the docs