In the wild.
70+ examples. One primitive. Across industries and data flows.
Polymonial does a lot. These use case examples show how — across the flows your business already runs (a CSV, an API, an EDI feed, a healthcare record exchange etc) and the problems it already faces (proving compliance, sharing data with partners, migrating off legacy crypto etc). Filter by your sector, the data flow you have today, the theme you care about, or the problem you’re trying to solve.
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EXA14
PublicSector
Sovereign AI Inference
Query foundation models hosted outside your jurisdiction without the prompt or response leaving home — Schrems II / FedRAMP High / DoD IL5 / EU AI Act Article 16 conformance via cryptography rather than via dedicated sovereign clouds.
EXA16
Universal
Private LLM Inference
Use the best LLM in the market — without exposing your prompts to the provider.
EXA40
Healthcare
FHIR Selective Disclosure
When healthcare systems exchange a Patient resource today, the receiver gets the full record — Polymonial wraps each FHIR field so they get only what their role requires.
EXA57
Universal
Mobile App Telemetry
Your app uploads everything the user touches — Polymonial seals events so the backend gets analytics, not behavioural fingerprints.
EXA62
Retail
Phantom Returns
Prove every refund is a genuine, first-time, in-scheme container — with no central record of who returned what.
EXA63
PublicSector
Trust-No-Party Audit
Prove the scheme hits its collection target — with the regulator re-verifying everything itself and trusting no operator.
EXA64
Retail
The Wallet That Can't Leak
Prove a consumer got every deposit back — without ever learning who they are.
EXA65
Insurance
Insurance Claims
Settle a claim in the browser — without the policy, the diagnosis or the loss report ever leaving the claimant.
EXA66
Finance
Loan Decisioning
Prove you qualify for the loan — without handing the lender your entire financial life.
EXA67
Finance
Fraud Screening
Spot fraud patterns across banks — without any bank exposing its transaction graph.
EXA68
Universal
AI Act Compliance
Prove your AI system meets its regulatory obligations — without exposing the model or its training data.
EXA70
Healthcare
Confidential Diagnostics
Run the diagnostic model in the browser — the patient scan never leaves the device.
EXA71
Logistics
Aviation Data Authenticity
Prove a data feed is genuine and unaltered — from the source, not the middleman.
EXA72
Telecoms
Proven Message Rail
Prove every message is authentic and unaltered — without the rail operator ever reading it.