NENNA Shield
Real-Time Masking API
A key component of NENNA Enterprise
Build AI features without risking compliance.
The NENNA platform Privacy API for your apps, pipelines and agents. Sensitive data is automatically detected and masked before it reaches a model. On-premises or in the cloud. Available as part of an enterprise package.
/v1/mask
200
Summarise the contract with *Müller GmbH*, budget *€85,000*.
masked
[COMPANY]
[AMOUNT]
2 fields masked
NENNA Shield
AI features without data privacy risks
Mask sensitive data in every API request.
Today, your apps and agents send data directly to model APIs, meaning sensitive content flows unprotected to third parties because no model API includes built-in masking. NENNA Shield acts as a real-time protective layer: with just a single API call, sensitive data is detected and masked before it ever reaches the model.
POST
/v1/mask
200
Request
{
“text”: “Contract with Thomas Berg,
IBAN DE89 3704 ··“,
“model”: “gpt-4o”
}
↓ nenna.mask()
Response
{
“masked”: “Contract with [PERSON_1],
IBAN [IBAN_1]”,
“entities”: 2
}
Customer database
On-premises
Record #4471
UNMASKED
Customer
Jasmin Neufeld
IBAN
DE89 3704 0044 0532
j.neufeld@muster-gmbh.de
Amount
€85,000
NENNA Shield
masked
Customer
[PERSON_1]
IBAN
[IBAN_1]
[EMAIL_1]
3 fields masked in real time
AI in regulated industries
Masking takes place where your data resides.
In highly regulated sectors, data is often not permitted to leave the organisation. Today, this typically means that AI cannot be used at all. NENNA Shield runs on-premise or in your own cloud, ensuring that masking is applied directly at the source. This allows even the most sensitive departments to utilise AI without sharing a single line of data externally.
Privacy across the entire stack
A central layer for all teams.
When every team builds their own privacy protection, it becomes inconsistent and prone to errors. NENNA Shield provides all teams with the same compliant API, ensuring privacy protection works with the same reliability everywhere, rather than varying from project to project.
Privacy First by Design
NENNA Shield protects your
sensitive company data.
Fully compliant with professional regulations and GDPR, including under Section 203 of the German Criminal Code for professional secrecy. Supported by 100% EU-hosted infrastructure and EU AI Act readiness, it fosters genuine trust for your AI agents and workflows.
REASON WHY FOR NENNA Shield
Data privacy as an API, not as a project.
A single API call is all it takes
You simply replace your direct model call with a Shield call. Sensitive data is automatically masked before it ever reaches a model.
On-premises or in your cloud
Shield runs right where your data resides. Not a single byte leaves your network, as masking takes place directly at the source.
One layer for every team
Instead of every team building their own data privacy solutions, everyone uses the same compliant API, ensuring data protection is consistently reliable across the board.
Masking enabled
3 sensitive fields protected
NENNA Shield is part of the Enterprise package and is rolled out together with the NENNA platform, rather than as a standalone API.
Request an Enterprise Demo →
FAQ
FAQs
Key questions and answers about NENNA Shield.
How do you accommodate industry-specific requirements, such as for the industrial, legal, or sports sectors?
How does NENNA.AI Shield ensure data privacy in existing AI processes?
How does "Audit Storage" work at NENNA.AI?
Which data types are recognised?
What does the integration process involve?
Are tailored terms and conditions available for larger organisations or corporations?
