Your AI supplier changed what it promised. You should hear it first.

Nymbrink keeps the record of what your AI suppliers state, in their signed passports and their policy pages. It shows each change line by line, checks passport claims against your requirements, and signs a record of the decision you make.

Try the demoStart monitoring freePublish your agent’s passport
WatchingExample Support AgentSignature checked
  1. Today 09:14
    Training on customer data weakenedBreaks your rule “No training on our data”No notice given; the passport promised 30 days
    Recorded
  2. 1 Sep 11:02
    Approved for customer support repliesSigned record of your approver’s decision
  3. 28 Aug 06:40
    New subprocessor for storage, in the EUAnnounced 30 days ahead, as promised

How a change reaches your record

  1. You add a supplier

    A web address is enough. Nymbrink finds its signed passport, or watches its policy pages and agent card instead, and labels each for what it is.

  2. Nymbrink checks it on a schedule

    Daily on paid plans, weekly on the free plan. Passports are compared field by field with their signature verified; policy pages section by section, wording before and after.

  3. You decide, and it is signed

    Passport claims are checked against your requirements; policy wording is read by your team. Each decision is kept against the exact version you saw.

Choose your starting point.

A record for the AI you use. A passport for the AI you build. See where it fits

For teams using AI

Keep supplier changes in view.

Watch supplier passports and policy pages. Review what changed, see how it relates to your requirements, and keep a record of your decision.

  • Changes tied to the version you saw
  • Your requirements and your team’s review
  • Signed decisions you can trace
Start monitoring free
For teams building AI

Make your commitments clear.

Publish a signed passport describing your agent’s controls and data handling. It stays yours and works without Nymbrink.

You’ll need a place to host the file and a safe place for its signing key.

npx provenance-protocol init
Publish a passportCreate in your browser

Evidence you can verify independently

Every record Nymbrink issues is signed, and verifies with the free, open-source Provenance tools, with no account. With Nymbrink’s public key, printed in every export, it checks even with Nymbrink offline.