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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File ×Document ×Telemetry ×Webhook ×REST API ×Sharing ×Identity ×Sovereignty ×InfraSec ×

Showing 31 examples

EXA4

Finance

Tenant References

Prove you qualify to rent — without handing over months of bank statements.

PDFDocumentPrivacyIdentity

EXA5

Finance

Multi-Jurisdiction Compliance

One dataset. Many regulators. Each gets their proof — no data crosses any border.

DatabaseDocumentComplianceSovereignty

EXA8

Finance

KYC Once, Reuse Many

Onboard once. Prove your identity to many institutions. Never re-upload a document.

REST APIOAuthIdentityPrivacy

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.

REST APISovereigntyPrivacy

EXA15

PublicSector

Sovereign Training Data Provenance

Prove your sovereign model was trained on cleared, in-country data — without revealing the corpus.

DatabaseDocumentSovereigntyAudit

EXA16

Universal

Private LLM Inference

Use the best LLM in the market — without exposing your prompts to the provider.

REST APIPrivacyInfraSec

EXA20

Universal

Age Verification

Prove this user is over 18 — no name, no date of birth, no document upload.

OAuthJWTREST APIComplianceIdentity

EXA22

PublicSector

National ID Without Surveillance

A national identity scheme citizens trust — usable everywhere, observable nowhere.

OAuthJWTREST APIIdentitySovereignty

EXA24

Media

Whistleblower Communication

Multi-hop confidential reporting where every byte of metadata reveals nothing.

EmailDocumentPrivacyIdentity

EXA27

Utilities

Critical Infrastructure Telemetry

Telemetry over IEC 61850 / DNP3 sealed at the device. NIS2 + IEC 62443 zone/conduit objectives met without the grid map ever leaving the operator's perimeter.

TelemetryIoTMQTTInfraSecSovereignty

EXA28

Universal

Schema-as-Firewall

OpenAPI 3.1 + JSON Schema 2020-12 contracts cryptographically enforced at the gateway — malformed payloads rejected without decryption.

REST APIGraphQLInfraSecCompliance

EXA29

Finance

Threat Intelligence Sharing

Sector ISACs exchange STIX 2.1 indicators over TAXII 2.1 — Polymonial wraps the bundle so cross-correlation runs across every member without exposing any single contributor's customer list, network map, or detection method.

REST APIDatabaseFederationInfraSec

EXA31

Universal

Certificate Migration

Move 10,000 TLS certificates to post-quantum cryptography without re-issuing through every CA. Code unchanged.

DocumentMigrationInfraSec

EXA37

Universal

API Schema Wrapping

Wrap your existing OpenAPI in cryptographic policy enforcement — same callers, same endpoints, less leakage.

REST APIGraphQLPrivacyInfraSec

EXA38

Universal

Sealed File Drops

SFTP CSV file drops still leak plaintext PII daily — Polymonial seals them at the row level so the recipient queries instead of reads.

CsvSFTPExcelPrivacySharing

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.

HL7/FHIRREST APIPrivacySharing

EXA43

Universal

Privacy-Preserving Webhooks

SaaS webhooks deliver full event payloads to your endpoint — Polymonial wraps the payload so you unseal only the fields you actually need.

WebhookREST APIPrivacySharing

EXA45

Universal

Embedded Device PQC Readiness

Hundreds of millions of embedded devices — smart meters, connected vehicles, medical devices, industrial sensors, payment terminals — were deployed with classical cryptography baked into firmware. NIST has finalised the PQC standards (FIPS 203/204) and the migration runway has started. Polymonial is crypto-agile by design: each device migrates on its own schedule, and yesterday's signed reading still verifies tomorrow.

IoTTelemetryMigrationInfraSec

EXA46

Manufacturing