openapi: 3.2.0
info:
  title: sipi.bot — Spend Firewall for AI Agents Budget API
  description: 'sipi.bot sits in front of every transaction an autonomous AI agent attempts and evaluates it against your spend rules — per-transaction caps, daily totals, velocity (runaway-loop protection), merchant allow/block, category limits, time windows, and approval thresholds. It returns APPROVED, BLOCKED, or FLAGGED with a deterministic rules check, before a single dollar moves. Every decision is written to a queryable audit log.


    **The core call an agent makes before spending:** `POST /v1/transactions/evaluate`.


    Auth is optional only for the public evaluation sandbox. Pass `Authorization: Bearer ` for an isolated paid or operator-created workspace. Dashboard and control-plane routes require authentication.'
  version: 0.1.0
  contact:
    name: sipi.bot
    url: https://sipi.bot
    email: sales@sipiteno.com
  license:
    name: MIT
    url: https://github.com/kindrat86/sipi-bot/blob/main/LICENSE
  termsOfService: https://sipi.bot/terms
servers:
- url: https://sipi.bot
  description: Production
security:
- BearerAuth: []
tags:
- name: Budget
  description: Live spend activity, budget status, and dashboard aggregates
paths:
  /api/transactions:
    get:
      tags:
      - Budget
      summary: List recent transactions
      description: Returns the 50 most recent recorded transactions (the audit-log tail).
      operationId: listTransactions
      responses:
        '200':
          description: Recent transactions.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Transaction'
  /api/stats:
    get:
      tags:
      - Budget
      summary: Dashboard aggregates and current budget posture
      description: 'Live totals: transaction counts by decision, pending approvals, active rules, and current daily spend.'
      operationId: getStats
      responses:
        '200':
          description: Aggregates.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Stats'
  /billing/status:
    get:
      tags:
      - Budget
      summary: Subscription / billing status
      description: Public billing capability status and available hosted tiers. No customer counts or account data.
      operationId: billingStatus
      security:
      - {}
      responses:
        '200':
          description: Billing status.
          content:
            application/json:
              schema:
                type: object
components:
  schemas:
    Transaction:
      type: object
      properties:
        id:
          type: string
        amount:
          type: number
        merchant:
          type: string
        category:
          type: string
        decision:
          $ref: '#/components/schemas/Decision'
        reason:
          type: string
        agent_id:
          type:
          - string
          - 'null'
        timestamp:
          type: string
          format: date-time
    Decision:
      type: string
      enum:
      - APPROVED
      - BLOCKED
      - FLAGGED
      description: APPROVED = pass all rules. BLOCKED = violates a hard rule, no money moves. FLAGGED = allowed but crosses an approval threshold, routed to the human queue.
    Stats:
      type: object
      description: 'Live dashboard aggregates: totals, decision breakdown, current budget posture.'
      properties:
        total_transactions:
          type: integer
        approved:
          type: integer
        blocked:
          type: integer
        flagged:
          type: integer
        pending_approvals:
          type: integer
        active_rules:
          type: integer
        daily_spend:
          type: number
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: A checkout-issued or operator-created API key. ADMIN_TOKEN is accepted only for operator control-plane access.
externalDocs:
  description: Agent card (A2A discovery)
  url: https://sipi.bot/.well-known/agent-card.json