API Evangelist enhancements for the Decart API

overlay: 1.0.0
info:
  title: API Evangelist enhancements for the Decart API
  version: 1.0.0
extends: openapi/decart-api-openapi-original.json
x-generated: '2026-08-01'
x-method: generated
x-source: openapi/decart-api-openapi-original.json + https://docs.platform.decart.ai/
x-note: >-
  Captures API Evangelist enhancements over the spec Decart serves at
  https://api.decart.ai/openapi.json. The original is never mutated. The spec is
  FastAPI-generated: it declares no servers[], no components.securitySchemes, no
  tags, and no top-level info.description, and it carries every model alias as a
  separate path with a machine-generated operationId. These actions add the missing
  document-level metadata and formalise the x-api-key authentication that the spec
  expresses only as a repeated required header parameter.
actions:
- target: $.info
  description: Add a document description and contact/licence metadata absent from
    the generated spec.
  update:
    description: >-
      The Decart REST API. Submit asynchronous video generation and editing jobs
      against the Lucy model family and poll them to completion (Queue API),
      edit images synchronously (Process API), upload and reuse reference assets
      by file_ id (Files API), mint ephemeral client tokens for browser and
      mobile realtime sessions, read realtime concurrency quota, and resolve
      rolling model aliases to canonical model ids.
    contact:
      name: Decart Support
      email: contact@decart.ai
      url: https://docs.platform.decart.ai/
    termsOfService: https://docs.platform.decart.ai/resources/api-terms
    x-apievangelist-enriched: '2026-08-01'
    x-apievangelist-documentation: https://docs.platform.decart.ai/
- target: $
  description: Add the production server, absent from the generated document.
  update:
    servers:
    - url: https://api.decart.ai
      description: Production
- target: $
  description: >-
    Formalise the authentication the spec expresses only as a required x-api-key
    header parameter on every operation. Decart accepts a permanent dct_ account
    key or an ephemeral ek_ client token in the same header.
  update:
    components:
      securitySchemes:
        ApiKeyAuth:
          type: apiKey
          in: header
          name: x-api-key
          description: >-
            Permanent account API key (dct_ prefix) created at
            https://platform.decart.ai/api-keys, or an ephemeral client token
            (ek_ prefix) minted server-side via POST /v1/client/tokens.
    security:
    - ApiKeyAuth: []
- target: $
  description: Declare the capability tags the generated spec omits entirely.
  update:
    tags:
    - name: Queue
      description: Asynchronous video generation and editing jobs.
    - name: Process
      description: Synchronous image editing.
    - name: Files
      description: Reusable uploaded reference assets.
    - name: Realtime
      description: Client tokens and concurrency quota for live WebRTC sessions.
    - name: Models
      description: Model alias resolution.
- target: $.paths['/v1/jobs/{job_id}'].get
  description: Tag the job-status operation and record the polling contract.
  update:
    tags: [Queue]
    x-apievangelist-polling:
      terminal_status: completed
      note: >-
        The 200 response is typed as an empty schema upstream, so the job object
        shape is not machine-readable. Only `status` is documented in prose.
- target: $.paths['/v1/jobs/{job_id}/content'].get
  description: Tag the content-download operation.
  update:
    tags: [Queue]
- target: $.paths['/v1/files'].post
  description: Tag the file upload operation and record the TTL contract.
  update:
    tags: [Files]
    x-apievangelist-ttl:
      min_seconds: 60
      max_seconds: 2592000
      persistent: true
      default: 24h
- target: $.paths['/v1/files/{file_id}'].get
  update:
    tags: [Files]
- target: $.paths['/v1/files/{file_id}'].delete
  update:
    tags: [Files]
- target: $.paths['/v1/client/tokens'].post
  description: Tag client-token minting and record its default lifetime.
  update:
    tags: [Realtime]
    x-apievangelist-token:
      prefix: ek_
      default_ttl_seconds: 60
      scoping: [allowedModels, allowedOrigins, constraints.realtime.maxSessionDuration]
- target: $.paths['/v1/realtime/quota'].get
  update:
    tags: [Realtime]
- target: $.paths['/v1/models/resolve'].post
  description: Tag alias resolution and record the rolling aliases it resolves.
  update:
    tags: [Models]
    x-apievangelist-aliases:
    - lucy-latest
    - lucy-vton-latest
    - lucy-restyle-latest
    - lucy-clip-latest
    - lucy-image-latest
- target: $.paths['/v1/jobs/lucy-2.5'].post
  description: Tag the flagship video-editing submit operation and record its price.
  update:
    tags: [Queue]
    x-apievangelist-pricing:
      metric: generated second
      resolution: 720p
      price_usd: 0.04
      source: https://docs.platform.decart.ai/getting-started/pricing
- target: $.paths['/v1/generate/lucy-image-2'].post
  description: Tag the synchronous image-editing operation and record its price.
  update:
    tags: [Process]
    x-apievangelist-pricing:
      metric: generation
      price_usd_480p: 0.01
      price_usd_720p: 0.02
      source: https://docs.platform.decart.ai/getting-started/pricing