> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flowra.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# List sources in a knowledge collection

> Aggregate chunks into file / URL / text sources



## OpenAPI

````yaml /api-reference/openapi.json get /api/v1/knowledge/collections/{id}/sources
openapi: 3.0.0
info:
  title: Flowra API (API Key Endpoints)
  description: >-
    **Flowra** is an AI-powered platform for building agents, workflows, and
    integrations.


    ### Capabilities

    - **Tools & Toolkits** – Define and group tools for agents and workflows.

    - **Workflows** – Orchestrate steps and automate processes.

    - **Triggers** – Schedule or event-based execution.

    - **Auth & Connections** – OAuth, API keys, and connected accounts.

    - **MCP** – Model Context Protocol server integration.

    - **Knowledge / RAG** – Add files and URLs for retrieval-augmented
    generation.


    ### Authentication

    Use the **x-api-key** header with a project API key to access endpoints that
    support API Key auth. Create and manage API keys in the dashboard under your
    project settings.


    Only endpoints that support API Key authentication via the @ApiKeyEnabled()
    decorator.


    Send x-api-key (required). On multi-tenant endpoints, optionally send
    x-username to act as an external user.
  version: '1.0'
  contact:
    name: Flowra
    url: https://flowra.dev
servers:
  - url: https://flowra.dev
    description: Flowra API
security: []
tags:
  - name: Users
    description: User profile
  - name: External Users
    description: End-user identities inside a project (x-username)
  - name: Auth Configs
    description: OAuth and API key configs for toolkits
  - name: Connected Accounts
    description: OAuth connected accounts and link creation
  - name: Toolkits
    description: List and search toolkits
  - name: Tools
    description: List, execute, and manage tools
  - name: Skills
    description: Browse, create, import, and install skills
  - name: Workflow & Agent
    description: Create, run, and inspect workflows and agents
  - name: Triggers
    description: Schedule and event-based trigger instances
  - name: Chat
    description: Threads and streaming agent runs
  - name: File
    description: Upload, list, and download files
  - name: Knowledge
    description: RAG knowledge collections
  - name: Table
    description: Collections and documents
  - name: Sandbox
    description: Ephemeral and durable code sandboxes
  - name: Browser
    description: Live browser sessions and view
  - name: LLM
    description: List AI models and generate completions
  - name: MCP
    description: MCP server management
  - name: usage
    description: Credit balance and usage ledger for the project API key
paths:
  /api/v1/knowledge/collections/{id}/sources:
    get:
      tags:
        - Knowledge
      summary: List sources in a knowledge collection
      description: Aggregate chunks into file / URL / text sources
      operationId: KnowledgeController_getSources
      parameters:
        - name: id
          required: true
          in: path
          description: Collection ID
          schema:
            example: 755ab29c-2864-5cfd-9c2b-4953f7314b21
            type: string
        - name: x-username
          in: header
          required: false
          description: >-
            External user (end user) to act as. Optional — if omitted, Flowra
            uses the project’s default external user. Send a stable username
            (e.g. customer_alice) only when you need another end-user context.
          schema:
            type: string
            default: (project default user)
          example: customer_alice
      responses:
        '200':
          description: Sources retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/KnowledgeSourceDtoArraySuccessResponse'
              example:
                success: true
                message: Operation completed successfully
                data:
                  - key: url:https%3A%2F%2Fexample.com%2Fdocs
                    type: url
                    label: Product docs
                    title: ''
                    chunkCount: 12
      security:
        - x-api-key: []
        - x-api-key: []
          x-username: []
components:
  schemas:
    KnowledgeSourceDtoArraySuccessResponse:
      type: object
      properties:
        success:
          type: boolean
          description: Success status
          example: true
        message:
          type: string
          description: Success message
          example: Operation completed successfully
        data:
          description: Response data
          type: array
          items:
            type: object
            properties:
              key:
                type: string
                description: Stable source key (use for chunks filter / delete)
                example: url:https%3A%2F%2Fexample.com%2Fdocs
              type:
                type: string
                enum:
                  - file
                  - url
                  - text
                example: url
              label:
                type: string
                description: Display label
                example: Product docs
              title:
                type: string
                description: Optional title from metadata
              chunkCount:
                type: number
                description: Number of chunks for this source
                example: 12
            required:
              - key
              - type
              - label
              - chunkCount
          example:
            - key: url:https%3A%2F%2Fexample.com%2Fdocs
              type: url
              label: Product docs
              title: ''
              chunkCount: 12
      required:
        - success
        - message
        - data
  securitySchemes:
    x-api-key:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        Project API key. Create and manage keys in the dashboard under Project →
        API Keys. Send as header: x-api-key: <your-key>
    x-username:
      type: apiKey
      in: header
      name: x-username
      description: >-
        Optional. External user username. If omitted, Flowra uses the project’s
        default external user. Send as header: x-username: <username>

````

This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.