Billflare Seats Pack

Per-seat subscriptions → assign emails → portal · v1.0.0

Stripe secret keyset

Webhook signing secretset

Admin secretset

Customers (D1)2

Subscriptions (D1)1

Seat assignments (D1)3

Default seats1

Try it Billing email Seat quantity Assignee email

Results appear here.

Endpoints

POST /api/checkout — subscription Checkout with quantity (seats)
POST /api/seats — set quantity via Stripe Subscription Items + D1
POST /api/seats/assign / DELETE — assign / unassign emails up to quantity
GET /api/seats?email= — quantity + assignments + entitlement
POST /api/portal — Billing Portal session
POST /api/webhook — SubtleCrypto; checkout + subscription.updated|deleted
GET /api/health — JSON health (secret flags only)
GET /api/admin/assignments — recent rows (X-Admin-Secret)

Different from Metered (usage) and Credits (prepaid). Per-seat quantity + assignments. Add-on to Billflare spine ($99).