Know when the AI your company relies on changes.
Nymbrink watches the signed passports of the AI agents you depend on — what each can do, what it promised never to do, who answers for it — and tells you the moment one weakens a promise. Every finding comes with proof you can check yourself.
May now use your data for training.
Training use changed from “never” to “unless the customer opts out”. Not announced in advance. Breaks your rule “No training on our data” and affects your approval of 1 September.
- Observed
- Declaration retrieved at its own address; signature and location check out; 1 change recorded.
- Agent
- provenance:domain:support.acme.example
- Signed with
- 8374d400f52618f6…
- Valid until
- 2026-09-30
01
The vendor publishes a signed passport
Using the open Provenance Protocol, a vendor states what its agent can do and what it will never do — and signs it. Anyone can check the signature, offline.
02
Nymbrink checks it, every day
We fetch each passport from its own address, confirm it is genuine, and compare it field by field with the last one we saw.
03
You hear what changed, where you work
A dropped promise, looser data handling, a new subprocessor, human approval removed — named, in plain words, with a signed stamp you can verify without us.
You use AI from other companies
Add the companies whose agents you rely on. Set your rules once — no training on your data, your region only, payments need approval — and Nymbrink checks them on every change.
Start monitoring →You build AI agents
Publish a signed passport in about five minutes, on your own machine. It is free, it is yours, and it answers the questions every enterprise customer asks.
npx provenance-protocol init
No terminal? Make one in your browser — the key never leaves it.
Add your agent →Don’t trust us. Check.
Every stamp Nymbrink issues is signed, and verifies on any computer with the free, open-source Provenance tools — with no account, and with Nymbrink switched off.
- We never judge whether an agent is safe. We record what we observed, and when.
- We never sit in your traffic. We read public passports; your requests never pass through us.
- We never hold a vendor’s keys. Passports are signed by whoever answers for the agent.