⏰ EU AI Act enforcement begins August 2026

SME 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 — free, open-source, deployable in a day.

Enterprise compliance cost €400k–€2M/yr
AT1C €0
Licence Open source · MIT

Without a receipt, there is no evidence

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.

Without AT1C

Your AI agent acts. There is no record that a human approved the specific action. Regulators ask for evidence. You have none.

With AT1C

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


Four obligations. One protocol.

The Act is specific about what constitutes human oversight. AT1C maps to each requirement directly.

📋

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

Four steps. One receipt. Permanent proof.

01 — REQUEST

Request

Your AI agent asks permission for a specific action — scoped, named, bounded.

02 — APPROVE

Approve

A human explicitly grants or denies it. Your key. Your decision. No platform in between.

03 — PROOF

Proof

A signed receipt is generated — timestamped, cryptographic, your compliance evidence.

04 — VERIFY

Verify

Any auditor verifies independently — no trust required, no intermediary.

Open source. One day. Already live.

Open source

Free to use, forever

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

One day

Wraps 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 install

ML-DSA-65 signing, receipt generation, and verification, ready to go.

npm install @at1c/sdk

Get compliant today. No credit card. No complexity.

Free account, live registry, open protocol. Register your first agent in minutes.