Welcome to the Cortex SDK API Reference. This section documents every available endpoint and how to interact with them to power AI apps and agents with intelligent memory and retrieval.
Base URL: https://api.usecortex.ai Contact us to get your API key at founders@usecortex.ai 
Authorization: Bearer <your_api_key>

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Data Ingestion

Upload and import content into Cortex from various sources.
  • /upload/upload_document — Upload single documents
  • /upload/upload_text — Upload text/markdown content
  • /upload/upload_app_sources — Import from workplace apps (Gmail, Slack, etc.)
  • /upload/scrape_webpage — Scrape and index web content
  • /upload/verify_processing — Check upload processing status
  • /upload/batch_upload — Upload multiple files at once

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Search & Query

Retrieve answers and information from your knowledge base.
  • /search/qna — Main search endpoint with AI-powered responses. Supports optional metadata parameter to filter sources by source_title or source_type.
  • /search/retrieve — Raw content search without AI generation. Returns structured search results for custom processing.

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Knowledge Management

Browse, fetch, and manage your knowledge base.
  • /list/sources — Browse all indexed sources
  • /list/sources_by_id — Get specific sources by ID
  • /fetch/fetch_content — Retrieve file content and download URLs
  • /delete_source — Remove sources from knowledge base

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User Memory

Personalize, retrieve, and manage user-specific AI memories for advanced agentic workflows.
  • /user_memory/list_user_memories — Browse user memories
  • /user_memory/retrieve_user_memory — Get specific user memories
  • /user_memory/add_user_memory — Manually add user-specific memories
  • /user_memory/generate_user_memory — AI-generated personalized memories
  • /user_memory/delete_user_memory — Remove user memories

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💡 Best Practices

  • Use sub-tenants to support multi-user isolation in B2B use cases.
  • Leverage metadata (e.g., source_title, source_type in the QnA API) for fine-grained filtering and agentic retrieval.
  • Tune search_alpha and recency_bias to control relevance.
  • Enable highlight_chunks for chunk-level citations.