Verified identity,
wired into your stack.
Authenticate users, sign documents, and send encrypted messages — all backed by government-verified biometric identity. Simple APIs, per-action pricing, no seat fees.
Three APIs, endless workflows
Identify API
Passwordless authentication with a verified identity. Know exactly who your users are.
Sign API
Legally binding signatures in seconds. Replace DocuSign for 1/100th the cost.
Message API
Encrypted messages, addressed by verified identity. With attachments and priority.
Built for every industry
Financial services
- KYC onboardingReusable government-verified identity — no document re-scans per signup.
- Loan signingLegally binding mortgage and credit agreements under ESIGN Act and UETA.
- High-value transactionsCrypto, stock trades, and wires confirmed with biometric proof, not SMS codes.
- Account openingsBanking and brokerage signups with audit-ready KYC compliance trail.
Adult & 18+ platforms
- 2257 record-keepingGovernment-verified age and identity for every performer, with a tamper-proof audit record per session.
- DSA age verificationEU Digital Services Act compliance for age-restricted content — verify once, not on every platform.
- Reusable credentialsUsers prove they are 18+ once via UIP; every site they visit reads the result without re-collecting documents.
- Privacy-preservingAge-check mode returns pass/fail only — never the date of birth or the document image.
Contracts & legal
- NDAsInstant, court-admissible non-disclosure agreements with biometric signer identification.
- Employment contractsOnboarding paperwork signed on a phone — same legal weight as DocuSign, fraction of the cost.
- Vendor & partnership agreementsB2B contracts with verified counterparty identity and full audit trail.
- Cross-border litigationIdentity proof admissible under ESIGN, UETA, and eIDAS AdES jurisdictions.
Healthcare & consent
- Informed consentMedical procedures and surgical consent with cryptographic proof the patient signed.
- Clinical trial enrollmentIRB-compliant consent capture with verified participant identity.
- Telehealth identityConfirm the patient on the other end of the video call is who they say they are.
- Prescription confirmationsControlled-substance prescriptions with audit-ready signer verification.
International
- Cross-border contractsVerified business representatives on either side of an international deal.
- Travel & immigrationVisa applications and pre-arrival checks with government-verified ID.
- Supply chain attestationAuthenticate product certifications and quality-control signatures across borders.
- Payment authorizationLarge B2B payments with executive verification, valid in every UIP jurisdiction.
Permanent, verifiable records
Every action returns a unique reference ID. Query it any time for court-admissible proof.
Action returns ID
Every identify, sign, or message action returns a unique reference ID with a cryptographic proof.
Store ID safely
Save the reference ID in your system. It links to an immutable record of the action.
Query for verification
Query the reference ID any time to retrieve court-admissible proof of the original action.
What UIP replaces
- Government-verified identity, not "the email is correct"
- $0.01 per verification — no per-MAU seat fees
- Reusable across every UIP-accepting business
- $0.03 per signature — versus $25–$300 per seat per month
- Biometric signer identity baked into the proof, not "the email opened the link"
- US ESIGN Act, UETA, and eIDAS AdES from the first signature, no premium tier required
- End-to-end encrypted, addressed by verified identity — no spoofable email headers
- $0.03 per message, $0.10 with attachments — priority flag bumps the in-app notification
- Every send produces the same audit trail your signatures do
One vendor. One integration. Three primitives that share a verified identity, a unified audit trail, and per-action pricing — instead of three separate vendors with three sets of seat fees.
Where UIP signatures hold up
Signatures are legally binding under the US ESIGN Act and UETA, and meet eIDAS Advanced Electronic Signature (AdES) requirements across the EU.
Recognised in: United States, United Kingdom, European Union, Australia, Canada, Singapore, and more.
QES (Qualified Electronic Signature) is not currently supported. QES requires a qualified trust service provider designation under eIDAS.
If your use case specifically requires QES — typically certain regulated EU public-sector workflows — consult your legal team.
Ready to integrate?,
Every integration starts with the UIP app — grab it below, then grab your API keys. Every new user gets $20 in API credit on their first business.