sign,
Alentra stores the exact uploaded originals as immutable evidence after completion.
Start here
What is Alentra?
The model in two minutes: primitives, wallets, and sessions.
Quickstart
Publish a workflow, create its first run, and receive a verified result.
Workflows
Reusable definitions, launch modes, revisions, and run-specific data.
Primitives
identify, age_verify, light_sign, sign — and how to chain them.API Reference
Every endpoint, request, and response.
What you can build
Identity verification
Government-attested name, date of birth, country, and document number — no
photographed-ID upload, OCR, or liveness vendor.
Business-redacted age gates
Prove a user is over 18 or 21. The age result contains only
true/false and
the threshold, not the birth date; Alentra retains the encrypted underlying evidence.Document signatures
A device signature bound to a verified identity, with the original signed bytes
and an independently checkable audit reference.
Terms acceptance
A lightweight signature over short inline terms — consent you can prove later.
Why it’s different
Government-attested
Claims come from a real issuing authority’s signed credential and are verified
cryptographically — not self-asserted, not OCR’d.
Composable
Compose
identify, age_verify, and sign into one session. The user
completes them in one flow; you get one webhook per step.Pay per result
You’re charged only for steps that successfully verify — from $0.05. There
is no subscription; self-serve accounts fund their balance manually.