Cryptographically signed short-term access

The Infrastructure Layer for Controlled Short-Term Access

Day passes, exam passes, coworking memberships, and temporary credentials — issue time-bounded passes and verify them at the edge with a single API call.

POST /v1/access/verify

200 OK · 14ms

$ curl https://api.passyn.dev/v1/access/verify \
-H "Authorization: Bearer pk_live_8f9a…"
→ { "valid": true, "serial": "PSN-92A1", "expiresAt": "2026-11-02T18:00:00Z" }

Passyn by Blansyn — Enterprise Access Infrastructure● All systems operational

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