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

# Upload File to Knowledge Base

> Upload a file to an existing knowledge base. Supports PDF, TXT, DOCX, MD, CSV, and JSON files up to 50MB.

## Headers

<ParamField header="x-api-key" type="string" required>
  API key used for authenticating requests to the API.
</ParamField>

<ParamField header="x-workspace-id" type="string" required>
  Workspace identifier for the API.
</ParamField>

## Path Parameters

<ParamField path="id" type="string" required>
  The unique identifier of the knowledge base to upload the file to.
</ParamField>

## Request Body

The request body should be sent as `multipart/form-data`.

<ParamField body="uploadedFile" type="file" required>
  The file to upload. Supported formats: PDF, TXT, DOCX, MD, CSV, JSON. Maximum file size: 50MB.
</ParamField>

## Response Fields

<ResponseField name="success" type="boolean">
  Whether the file was uploaded successfully.
</ResponseField>

<ResponseField name="file" type="object">
  Details of the uploaded file.

  <ResponseField name="name" type="string">
    Name of the uploaded file.
  </ResponseField>

  <ResponseField name="size" type="number">
    Size of the file in bytes.
  </ResponseField>

  <ResponseField name="type" type="string">
    MIME type of the file.
  </ResponseField>
</ResponseField>

<ResponseExample>
  ```json theme={null}
  {
    "success": true,
    "file": {
      "name": "product-guide.pdf",
      "size": 1048576,
      "type": "application/pdf"
    }
  }
  ```
</ResponseExample>