Live Playground · Local engine
Watch private data disappear as you type.
Type on the left. On the right, email addresses, card numbers and secret keys become tokens like [REDACTED:EMAIL_1], the format the Vrymdor™ AI Node uses. Everything here runs in your browser on fake sample data.
Scenarios (fake Acme Robotics data)
An AI drafted support reply that repeats the customer’s email, card and Social Security number.
Relaxed 0 · Balanced 0 · Strict 0. Adds card numbers (Luhn checked), US Social Security numbers and phone numbers.
Secrets are masked at every level.
Mask style
The AI Node format: [REDACTED:EMAIL_1]. The same value always gets the same token.
Highlight to protect: select any words in your text, then choose Always mask this. Names and street addresses are not masked by default; add them as custom terms.
Hover over or tab to a masked value to see its type and why it was masked.
EMAIL 2 · CREDIT_CARD 1 · SSN 1
Think you can sneak one past?
The Rivals attack the full AI Node every week. Get a fake key, hide it your way, and we'll test it.
Restore: your customer gets the real values back
Masking keeps private details away from the AI. Restore (the Rehydrate setting) puts them back in the answer, inside your own AI Node, so the message your customer receives is normal and personal. The AI never sees the real values at any point.
1. What the AI sees
Each value gets its own numbered token, so the AI can tell them apart. The same value is always the same token.
Hi Jane, Thanks for your patience. I found your Acme Robotics order for the R2 arm under [REDACTED:EMAIL_1]. The card on file, [REDACTED:CREDIT_CARD_1], was charged twice, so I have refunded the second charge. You also sent your SSN ([REDACTED:SSN_1]). We never need it, so please do not send it by email again. Best, Sam, Acme Robotics support ([REDACTED:EMAIL_2])
The AI only ever writes tokens. Change this text to see what your node does with it.
3. What your customer gets
Your node puts each real value back in place of its exact token. Nothing is guessed. API keys, passwords and other secrets are never put back. No setting changes that.
Who the answer is for, by their real details. Separate more than one with commas. Only those values can come back.
Hi, I will send the confirmation to [email protected]. The refund goes back to the card 4242 4242 4242 4242. Your record 123-45-6789 is verified. I will send the confirmation to [email protected]. Best regards, Support
4 values put back.
2 email addresses were put back without 'only for'. If this goes to one customer, name them in 'only for' so nobody else's details come back.
4. Where the values live. The real values stay in your AI Node's memory only. They're never saved, logged or sent to the AI model or to Vrymdor, and they're deleted after 15 minutes by default (1 hour at most). Secrets are never put back.
Turn it on. In n8n, switch on Rehydrate on the Call a Model step of the Vrymdor AI Node, and set Only For to the recipient. Over the API, add "params": {"rehydrate": true, "only_for": ["[email protected]"]} to a model call. For a two step setup, use Put Real Values Back after your own model step. Then press Check and verify on the Rules page of your dashboard before you go to production. If another part of your workflow puts the information back, you can turn Rehydrate off.
Use this in production
Get the same masking in your workflows with the Vrymdor™ AI Node. Fill in the Node Host URL, Agent ID and Agent Secret from the "Connect your AI Node" card in your dashboard.
This page: the Local engine
Public, well known detectors (key prefixes, entropy, the Luhn check) running as JavaScript on your device. Nothing you type is sent anywhere. Share links carry the masked output only, and are refused while the text holds a real looking key.
The AI Node also catches secrets hidden in base64, hex, ROT13, reversed text, s p a c e d letters, look-alike characters and invisible characters, even layered up to 3 deep (such as base64 of hex), and hides secrets in the model's replies. This page does none of that: it only finds values written out plainly. Try those tricks in the Arena.
In production: the Vrymdor™ AI Node
Runs in your account and sits between your apps and the AI model you use. It hides email addresses, card numbers, US Social Security numbers, phone numbers and secret keys before any AI model reads them, applies your rules, and keeps a record of every run.