openapi: 3.1.0
info:
  title: Memesio API Contracts agent-infra ai API
  version: 0.1.0
  description: Contract baseline for AI jobs, trend alerts, collaboration, and billing surfaces.
servers:
- url: /
tags:
- name: ai
paths:
  /api/video/subtitles:
    get:
      summary: Load Subtitle Style Presets and Optional Subtitle Preview with Beat-Grid Sync for Kinetic Text
      tags:
      - ai
      parameters:
      - name: transcript
        in: query
        schema:
          type: string
      - name: tone
        in: query
        schema:
          type: string
      - name: locale
        in: query
        schema:
          type: string
      - name: stylePresetId
        in: query
        schema:
          type: string
      - name: trendKeywords
        in: query
        schema:
          type: string
      - name: syncToBeatGrid
        in: query
        schema:
          type: boolean
      - name: bpm
        in: query
        schema:
          type: integer
          minimum: 60
          maximum: 220
      - name: beatOffsetMs
        in: query
        schema:
          type: integer
          minimum: -60000
          maximum: 60000
      responses:
        '200':
          description: Subtitle style preset + preview payload
    post:
      summary: Preview or Apply Generated Subtitles from Script or Audio-Asset Transcript Into Timeline Track with Beat-Synced Kinetic Text
      tags:
      - ai
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                action:
                  type: string
                  enum:
                  - preview
                  - apply
                transcript:
                  type: string
                audioAssetId:
                  type: string
                tone:
                  type: string
                locale:
                  type: string
                stylePresetId:
                  type: string
                trendKeywords:
                  type: array
                  items:
                    type: string
                syncToBeatGrid:
                  type: boolean
                bpm:
                  type: integer
                  minimum: 60
                  maximum: 220
                beatOffsetMs:
                  type: integer
                  minimum: -60000
                  maximum: 60000
                projectId:
                  type: string
                trackId:
                  type: string
      responses:
        '200':
          description: Subtitle preview payload
        '201':
          description: Subtitles applied to timeline
        '400':
          description: Validation error
        '404':
          description: Preset or timeline project not found
components:
  securitySchemes:
    DeveloperApiKeyAuth:
      type: apiKey
      in: header
      name: x-developer-api-key
      description: 'Optional higher-rate free-tier auth. You can also send the key as Authorization: Bearer <key>.'
    AgentApiKeyAuth:
      type: apiKey
      in: header
      name: x-agent-api-key
      description: 'Agent auth for free endpoints and agent-admin routes. You can also send the key as Authorization: Bearer <key>.'