Developers

Build with the Uthereal Cortex SDK

Everything needed to add a cited knowledge agent to your application: the SDK reference, a one-file setup for every major AI coding tool, and the guides behind the design decisions.

Read the SDK guide

Start here

What the Uthereal Cortex SDK is, and how to wire it into an app.

SDK overview

Install, server handler, React citations, API reference and FAQ.

AI coding tools

One file teaches your coding tool when and how to use Cortex.

Lovable

Prompt and project knowledge setup.

Codex

AGENTS.md setup for OpenAI Codex.

Claude Code

CLAUDE.md project memory setup.

Cursor

Project rule in .cursor/rules.

Windsurf

Rule file in .windsurf/rules.

GitHub Copilot

Repository instructions for Copilot.

Guides

Answers to the questions developers ask before choosing a RAG stack.

RAG with citations

How to add verifiable citations to an AI chatbot.

Choosing a RAG API

Eight criteria that decide provenance and accuracy.

Build vs framework vs SDK

Three ways to ship RAG, and what each one costs you.

Machine-readable instructions

Drop-in files that teach any AI coding assistant what Uthereal Cortex is, when to use it and how to integrate it correctly.

/developers/agents.md — universal agent instructions
/developers/sdk.md — the full SDK guide in Markdown
/llms.txt — site index for AI assistants

Questions? sdk@uthereal.ai