specification: FinOps Framework
specificationVersion: '1.0'
provider: Stannp
providerId: stannp
created: '2026-06-12'
modified: '2026-06-12'
description: >
  Stannp follows a hybrid billing model combining a recurring subscription fee
  (platform access, rate limits, user seats) with per-item metered charges for
  each physical mail piece dispatched. Cost optimization requires balancing
  subscription tier against actual send volume and API throughput requirements.
billingModel:
  type: hybrid
  description: >
    Monthly or annual subscription for platform access plus per-item metered
    charges per letter or postcard dispatched. Annual billing provides a 20%
    discount on subscription fees.
  components:
    - name: Platform Subscription
      type: recurring
      billingPeriod: monthly
      description: Fixed monthly fee for plan tier covering users, templates, rate limits, and contacts
    - name: Per-Item Dispatch
      type: metered
      unit: mail_piece
      description: >
        Variable cost per physical letter or postcard dispatched. Price per
        item decreases at higher volume tiers and is lower on paid plans vs
        the Free plan.
focusColumns:
  - ChargeType: Usage
  - ServiceName: Stannp Direct Mail API
  - ServiceCategory: Marketing / Physical Mail
  - ResourceType: MailPiece
  - Region: EU (api-eu1.stannp.com)
  - BilledCurrency: GBP
  - ListUnitPrice: variable by volume tier and plan
  - ConsumedQuantity: count of letters/postcards dispatched
meters:
  - name: api_requests
    unit: request
    description: API calls made against any Stannp API endpoint per minute window
    granularity: per-minute
    rateLimitEnforced: true
  - name: mail_pieces_dispatched
    unit: piece
    description: Physical letters or postcards queued for print and delivery
    granularity: per-item
    billedOn: dispatch
  - name: contacts_stored
    unit: contact
    description: Recipient records stored in the platform across groups
    granularity: account-total
    limitEnforced: true
  - name: webhooks_active
    unit: webhook
    description: Active webhook endpoints registered for event delivery
    granularity: account-total
    limitEnforced: true
principles:
  Visibility:
    description: >
      Account balance and spend are accessible via GET /accounts/balance.
      Webhook events provide real-time tracking of mail piece status and
      delivery, enabling cost attribution per campaign or recipient group.
    endpoints:
      - GET /accounts/balance
      - GET /campaigns/list
      - GET /reporting/summary
  Optimization:
    description: >
      Annual billing reduces subscription cost by 20%. Volume-based per-item
      pricing rewards higher send volumes with lower unit costs. Selecting the
      appropriate plan tier avoids overpaying for unused rate limit headroom.
      Using idempotency keys prevents duplicate dispatches that would incur
      unnecessary per-item charges.
    recommendations:
      - Switch to annual billing for a 20% subscription discount
      - Match plan tier to actual API throughput requirements
      - Use volume batching to reach lower per-item price tiers
      - Implement idempotency keys on all POST dispatch calls
      - Monitor account balance via API to prevent service interruption