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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EXA20
Universal
Age Verification
Prove this user is over 18 — no name, no date of birth, no document upload.
EXA21
Universal
Identity & Breaches
Replace passwords with fresh proofs. Every login. No database to breach.
EXA22
PublicSector
National ID Without Surveillance
A national identity scheme citizens trust — usable everywhere, observable nowhere.
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.
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.
EXA48
Finance
Pension Contribution Privacy
Monthly payroll-to-pension files leak the salary book — Polymonial wraps each row so the provider verifies math without seeing salaries.
EXA49
Universal
OAuth Identity Token Slimming
Single sign-on tokens leak the full user profile to every relying party — Polymonial wraps the assertion so only requested claims decrypt.
EXA55
Universal
Customer Support Ticket Privacy
Customers paste credentials into support tickets — Polymonial detects and seals before tier-1 sees them.
EXA69
Universal
AI Agent Identity
Prove an autonomous agent is who it claims and authorised to act — with no central identity honeypot.
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.