Upload Document

Upload one document as multipart form data. Processing continues asynchronously after the document is accepted.

POST/api/v2/knowledge/{id}/documents

Authorization

apiKey
X-API-Key<token>

Your Sim API key, personal or workspace-scoped. Generate one from the Sim dashboard under Settings > API Keys. A workspace API key is not accepted everywhere: operations that act on behalf of a specific human — administrative reads, secret access, and irreversible or governance-affecting writes — always reject it, whatever role the key carries. Each such operation says so in its own description, and the rejection surfaces as 403 unless the operation conceals unauthorized resources, in which case it is reported as 404. Use a personal API key for those.

In: header

Path Parameters

id*string

Unique knowledge base identifier.

Length1 <= length

Query Parameters

workspaceId*string

Workspace that owns the knowledge base.

Length1 <= length

Request Body

multipart/form-data

Multipart form containing the document file.

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://www.sim.ai/api/v2/knowledge/string/documents?workspaceId=string" \  -F file="string" \  -F property1="null" \  -F property2="null"
{
  "data": {
    "id": "b2d4f8a0-1c3e-4a5b-9d7c-2e6f0a8b4c12",
    "knowledgeBaseId": "7c9e6679-7425-40de-944b-e07fc1f90ae7",
    "filename": "getting-started.pdf",
    "fileSize": 248913,
    "mimeType": "application/pdf",
    "processingStatus": "completed",
    "chunkCount": 24,
    "tokenCount": 8123,
    "characterCount": 41205,
    "enabled": true,
    "createdAt": "2025-06-18T16:45:00Z"
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "The request is invalid."
  }
}