Civitai ModelVersions API

openapi: 3.1.0
info:
  title: Civitai Orchestration Blobs ModelVersions API
  version: v2
  description: 'Submit AI generation workflows — image, video, audio, language, and LoRA training — through a single

    contract. The Orchestration API races multiple providers and engines behind one workflow surface and

    delivers results via webhooks or polling. Authenticate with a Bearer token issued at civitai.com.

    '
  contact:
    name: Civitai Developer Support
    url: https://developer.civitai.com/orchestration/
  termsOfService: https://civitai.com/content/tos
  license:
    name: Civitai Terms of Service
    url: https://civitai.com/content/tos
servers:
- url: https://orchestration.civitai.com
  description: Civitai Orchestration API
security:
- BearerAuth: []
tags:
- name: ModelVersions
  description: Specific versions of a model with files, hashes, and AIR identifiers.
paths:
  /model-versions/{id}:
    get:
      operationId: getModelVersion
      summary: Get Model Version
      tags:
      - ModelVersions
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Model version detail.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelVersion'
        '404':
          $ref: '#/components/responses/NotFound'
  /model-versions/mini/{id}:
    get:
      operationId: getModelVersionMini
      summary: Get Model Version Mini
      tags:
      - ModelVersions
      description: Lightweight model-version payload optimized for client tools.
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Lightweight model version.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelVersionMini'
  /model-versions/by-hash/{hash}:
    get:
      operationId: getModelVersionByHash
      summary: Get Model Version By Hash
      tags:
      - ModelVersions
      parameters:
      - name: hash
        in: path
        required: true
        schema:
          type: string
        description: AutoV1, AutoV2, SHA256, CRC32, or Blake3 hash of the model file.
      responses:
        '200':
          description: Model version matching the file hash.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelVersion'
        '404':
          $ref: '#/components/responses/NotFound'
  /model-versions/by-hash:
    post:
      operationId: getModelVersionsByHashes
      summary: Get Model Versions By Hashes
      tags:
      - ModelVersions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
      responses:
        '200':
          description: Map of hash to model version.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ModelVersion'
  /model-versions/by-hash/ids:
    post:
      operationId: getModelVersionIdsByHashes
      summary: Get Model Version IDs By Hashes
      tags:
      - ModelVersions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
      responses:
        '200':
          description: Map of hash to model version ID.
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: integer
components:
  schemas:
    ModelVersion:
      type: object
      properties:
        id:
          type: integer
        modelId:
          type: integer
        name:
          type: string
        baseModel:
          type: string
          description: e.g. SD 1.5, SDXL 1.0, Flux.1 D
        baseModelType:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        publishedAt:
          type: string
          format: date-time
        trainedWords:
          type: array
          items:
            type: string
        air:
          type: string
          description: AI Resource Identifier, e.g. urn:air:sdxl:lora:civitai:12345@67890
        downloadUrl:
          type: string
          format: uri
        files:
          type: array
          items:
            $ref: '#/components/schemas/ModelFile'
        images:
          type: array
          items:
            $ref: '#/components/schemas/Image'
        stats:
          $ref: '#/components/schemas/Stats'
    ModelFile:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        sizeKB:
          type: number
        type:
          type: string
          enum:
          - Model
          - VAE
          - Config
          - Negative
          - Training Data
          - Archive
          - Other
        format:
          type: string
          enum:
          - SafeTensor
          - PickleTensor
          - Other
        pickleScanResult:
          type: string
        virusScanResult:
          type: string
        scannedAt:
          type: string
          format: date-time
        downloadUrl:
          type: string
          format: uri
        hashes:
          type: object
          properties:
            AutoV1:
              type: string
            AutoV2:
              type: string
            SHA256:
              type: string
            CRC32:
              type: string
            Blake3:
              type: string
    Image:
      type: object
      properties:
        id:
          type: integer
        url:
          type: string
          format: uri
        hash:
          type: string
        width:
          type: integer
        height:
          type: integer
        nsfwLevel:
          type: integer
        nsfw:
          type: boolean
        createdAt:
          type: string
          format: date-time
        postId:
          type: integer
        stats:
          $ref: '#/components/schemas/Stats'
        meta:
          type: object
          additionalProperties: true
        username:
          type: string
    ModelVersionMini:
      type: object
      properties:
        id:
          type: integer
        modelId:
          type: integer
        name:
          type: string
        baseModel:
          type: string
        air:
          type: string
        downloadUrl:
          type: string
          format: uri
    Error:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
        code:
          type: string
    Stats:
      type: object
      properties:
        downloadCount:
          type: integer
        favoriteCount:
          type: integer
        commentCount:
          type: integer
        ratingCount:
          type: integer
        rating:
          type: number
        thumbsUpCount:
          type: integer
        thumbsDownCount:
          type: integer
  responses:
    NotFound:
      description: Resource not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: token
      description: Personal API token issued at https://civitai.com/user/account.