openapi: 3.1.0
info:
  title: Memesio API Contracts agent-infra motion API
  version: 0.1.0
  description: Contract baseline for AI jobs, trend alerts, collaboration, and billing surfaces.
servers:
- url: /
tags:
- name: motion
paths:
  /api/video/text-animations:
    get:
      summary: List Text Animation Presets and Generate Preview Keyframes
      tags:
      - motion
      parameters:
      - name: presetId
        in: query
        schema:
          type: string
      - name: startMs
        in: query
        schema:
          type: number
          minimum: 0
      - name: durationMs
        in: query
        schema:
          type: number
          minimum: 1
      - name: intensity
        in: query
        schema:
          type: number
          minimum: 0.2
          maximum: 2
      responses:
        '200':
          description: Text animation preset payload
    post:
      summary: Preview or Apply Text Animation Preset Keyframes to a Timeline Track
      tags:
      - motion
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - presetId
              properties:
                action:
                  type: string
                  enum:
                  - preview
                  - apply
                presetId:
                  type: string
                startMs:
                  type: number
                  minimum: 0
                durationMs:
                  type: number
                  minimum: 1
                intensity:
                  type: number
                  minimum: 0.2
                  maximum: 2
                projectId:
                  type: string
                trackId:
                  type: string
      responses:
        '200':
          description: Preview keyframes payload
        '201':
          description: Preset 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>.'