Welcome to Knowbase.ai API

Knowbase.ai API lets you upload documents, query them with AI, manage collections, and integrate document intelligence into your own applications.

Here you'll find all the documentation you need to get up and running with the Knowbase.ai API.

Base URL

https://api.knowbase.ai/api/v1

Authentication

All API requests require a Bearer token in the Authorization header:

Authorization: Bearer YOUR_API_TOKEN

Generate your API token from Account Settings in the Knowbase.ai web app, or via the GET /api/v1/token endpoint. API access requires a Pro or Team plan.

Features

• File Management — Upload, list, get details, delete, and retrieve summaries

• Collections — Group files into named collections for organized querying

• Chat (Q&A) — Ask questions against your documents with AI-powered answers and source citations

• Streaming — Real-time Server-Sent Events (SSE) for chat responses

• Thinking Mode — Advanced multi-step reasoning for complex questions (Pro and Team)

• Conversations — Persistent chat history with follow-up question support

• Account Info — Check your plan, quotas, and usage

Supported File Types

Documents: PDF, DOCX, DOC, TXT, MD, PPTX, PPT

Audio: MP3, WAV, M4A, AAC, OGG, FLAC

Video: MP4, MOV, WEBM, AVI, MKV

Plan Limits

	Pro	Team
Upload size	100 MB	100 MB
Rate limit	20/min	60/min
Queries/month	2,000	5,000
Storage	25 GB	100 GB
Uploads	500	Unlimited
Thinking Mode	Yes	Yes

Error Format

All errors return a consistent JSON structure:

{
  "error": {
    "code": "ERROR_CODE",
    "message": "Human readable description"
  }
}

Error codes: INVALID_TOKEN, EXPIRED_TOKEN, FORBIDDEN, NOT_FOUND, RATE_LIMIT, QUOTA_EXCEEDED, INVALID_REQUEST, FILE_TOO_LARGE, UNSUPPORTED_FILE_TYPE, FEATURE_GATED, INTERNAL_ERROR

Interactive Docs

Explore and test all endpoints at:

https://api.knowbase.ai/docs