Deus Witness

Prove what your AI agent was allowed to do.

You sign a mandate with a passkey: budget, who it may write to, what data stays closed. A witness judges every action against it and keeps a signed record anyone can check offline.

Create accountTry in 10 minutes

Free during preview. Preview software: not a finished product, no uptime promise.

The problem

Agents now send mail, spend money, delete and publish for people. When one goes wrong, the only record is usually the log of the party being judged.

Reports exist of agents deleting a production database or buying without confirmation (as published by third parties; we did not reproduce them).

After an incident someone else (a court, an insurer, a card network) needs proof of what the agent was allowed to do.

How it works

  1. Sign in with a passkey
    No password. Works on a laptop, or on a phone through a QR code.
  2. Create an agent
    You get an API key, shown once, and a one-line config for your MCP client.
  3. Sign a mandate
    Fill in a plain form. Your browser shows exactly what is signed, and your passkey signs it.
  4. Watch and decide
    Each action is allowed, denied or held for you. Held actions wait for your passkey approval. Download an evidence pack and verify it offline.

Pricing

Free during preview, paid plans soon. Preview limits: 3 agents and 5000 actions per day per account. No prices are set yet.

Honest limits

Page script hashes

SHA-256 of the files that encode and sign your mandate. Compare them with shasum -a 256 on what your browser loads.

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