Stacks Ai Knowledge Base Resources API

openapi: 3.2.0
info:
  title: StackAI Knowledge Base Resources API
  version: 0.1.0
  description: StackAI public REST API for running deployed agentic workflows (flows), managing Knowledge Bases and their file resources, and reading flow-run analytics. Assembled verbatim from the per-endpoint OpenAPI 3.1.0 documents published at https://docs.stackai.com/interface-and-deployment/api-reference.
  contact:
    name: StackAI
    url: https://www.stackai.com/
servers:
- url: https://api.stack-ai.com
  description: Primary API host (knowledge bases, analytics, document upload)
- url: https://stack-inference.com
  description: Inference host for running deployed flows
tags:
- name: Knowledge Base Resources
paths:
  /v1/knowledge-bases/{knowledge_base_id}/resources:
    get:
      tags:
      - Knowledge Base Resources
      summary: List Resources
      description: List files in the knowledge base with optional cursor pagination.
      operationId: listKnowledgeBaseResources
      parameters:
      - name: knowledge_base_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Knowledge Base Id
      - name: cursor
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Optional identifier for the page that should be returned. If it is not provided, the first page will be returned.
          title: Cursor
        description: Optional identifier for the page that should be returned. If it is not provided, the first page will be returned.
      - name: page_size
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          description: Number of items to be returned in the page.
          default: 50
          title: Page Size
        description: Number of items to be returned in the page.
      - name: direction
        in: query
        required: false
        schema:
          $ref: '#/components/schemas/PaginationDirection'
          description: 'Direction for pagination: ''next'' to advance through pages (older items), ''prev'' to go back (newer items)'
          default: next
        description: 'Direction for pagination: ''next'' to advance through pages (older items), ''prev'' to go back (newer items)'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/KnowledgeBaseResourcesResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    post:
      tags:
      - Knowledge Base Resources
      summary: Create Resource
      description: 'Upload a file directly to a knowledge base and start indexing.


        This endpoint allows API users to upload files directly without needing to use

        presigned URLs. The file is uploaded to storage and indexing is started automatically.

        Returns the resource ID so callers can poll for indexing status.'
      operationId: uploadKnowledgeBaseResource
      parameters:
      - name: knowledge_base_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Knowledge Base Id
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/Body_uploadKnowledgeBaseResource'
      responses:
        '202':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResourceUploadResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/knowledge-bases/{knowledge_base_id}/resources/{resource_id}:
    get:
      tags:
      - Knowledge Base Resources
      summary: Get Resource By Id
      description: Get one file resource by ID from the knowledge base.
      operationId: getKnowledgeBaseResource
      parameters:
      - name: knowledge_base_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Knowledge Base Id
      - name: resource_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Resource Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/KnowledgeBaseFileResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    delete:
      tags:
      - Knowledge Base Resources
      summary: Delete Resource By Id
      description: Delete a file resource by ID.
      operationId: deleteKnowledgeBaseResource
      parameters:
      - name: knowledge_base_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Knowledge Base Id
      - name: resource_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Resource Id
      responses:
        '204':
          description: Successful Response
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    PaginationDirection:
      type: string
      enum:
      - next
      - prev
      title: PaginationDirection
      description: Direction for cursor-based pagination.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ResourceUploadResponse:
      properties:
        message:
          type: string
          title: Message
        resource_id:
          type: string
          format: uuid
          title: Resource Id
      type: object
      required:
      - message
      - resource_id
      title: ResourceUploadResponse
      description: Result of a file upload, including the resource ID for status polling.
    KnowledgeBaseFileResponse:
      properties:
        knowledge_base_id:
          type: string
          format: uuid
          title: Knowledge Base Id
        created_at:
          type: string
          format: date-time
          title: Created At
        modified_at:
          type: string
          format: date-time
          title: Modified At
        indexed_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Indexed At
        resource_id:
          anyOf:
          - type: string
            format: uuid
          - type: 'null'
          title: Resource Id
        resource_path:
          type: string
          minLength: 1
          title: Resource Path
        dataloader_metadata:
          patternProperties:
            ^[^\t\n\r\f\v]+$:
              anyOf:
              - {}
              - type: 'null'
          propertyNames:
            maxLength: 64
            minLength: 1
          type: object
          title: Dataloader Metadata
        user_metadata:
          patternProperties:
            ^[^\t\n\r\f\v]+$:
              anyOf:
              - {}
              - type: 'null'
          propertyNames:
            maxLength: 64
            minLength: 1
          type: object
          title: User Metadata
        content_hash:
          type: string
          minLength: 1
          title: Content Hash
        content_mime:
          type: string
          minLength: 1
          title: Content Mime
        size:
          type: integer
          minimum: 0
          title: Size
        status:
          $ref: '#/components/schemas/StackFileStatusEnum'
      type: object
      required:
      - knowledge_base_id
      - created_at
      - modified_at
      - resource_id
      - resource_path
      - content_hash
      - content_mime
      - size
      - status
      title: KnowledgeBaseFileResponse
      description: A file stored in a knowledge base.
    KnowledgeBaseResourcesResponse:
      additionalProperties: true
      type: object
    StackFileStatusEnum:
      type: string
      enum:
      - resource
      - parsed
      - indexed
      - pending
      - pending_delete
      - deleted
      - error
      title: StackFileStatusEnum
      description: Processing status of a file in a knowledge base.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    Body_uploadKnowledgeBaseResource:
      properties:
        file:
          type: string
          format: binary
          title: File
          description: The file to upload to the knowledge base
      type: object
      required:
      - file
      title: Body_uploadKnowledgeBaseResource
  securitySchemes:
    OAuth2PasswordBearer:
      type: oauth2
      description: Authorization header. [Learn how to get it](/docs/api-reference/how-to-get-credentials).
      flows:
        password:
          scopes: {}
          tokenUrl: token
    HTTPBearer:
      type: http
      scheme: bearer