Brain

Brain is an AI knowledge and retrieval platform that lets you build intelligent search into your applications. Upload your documents, and query them with natural language — get both relevant excerpts and AI-generated answers.

Key Features

• Vector Search — Find semantically relevant content using embeddings
• AI Search — Get AI-generated answers grounded in your documents
• Streaming Responses — Real-time streaming for responsive UIs
• Cloudflare AutoRAG Compatible — Drop-in replacement for Cloudflare AutoRAG
• Folder Organization — Filter searches by document paths
• Custom Metadata — Attach attributes to documents and filter on them

Quick Start

1. Get your API key

Sign up at brain.aistack.run, create a project, and generate an API key.

2. Upload a document

curl -X POST https://brain.aistack.run/api/v1/documents \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@document.txt" \
  -F "filename=docs/document.txt"

3. Search with AI

curl -X POST https://brain.aistack.run/api/v1/ai-search \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "What does this document say?"}'

Check out the Getting Started guide for a complete walkthrough.