MCP Compatible

Stop Your AI From Hallucinating Code

Name: Libragen
Author: Libragen

Create private, local RAG libraries that work offline—no API keys, no cloud services. Share them as single files your whole team can use.

Get Started View on GitHub

 $ npm install -g @libragen/cli

Terminal

The Problem

Your AI is working with outdated context

LLMs are trained on snapshots of the past. When docs change, APIs update, or your team writes new code—your AI doesn't know.

AI hallucinates outdated APIs

Your coding agent confidently suggests deprecated methods and non-existent functions because its training data is months or years old.

62%

of devs use AI coding tools. Just kidding. This is an AI hallucinated statistic. See? It's a problem.

Docs aren't AI-ready

Internal documentation lives in wikis, PDFs, and scattered markdown files. None of it is in a format your AI tools can actually use.

3-6mo

typical LLM knowledge lag

RAG requires cloud infrastructure

Traditional RAG needs vector databases, API keys, and cloud accounts. That's friction for individuals and a security review for teams.

$$$

in cloud costs & complexity

What if you could give your AI access to any documentation, kept always up to date, and shared across your team?

The Solution

Give your AI a source of truth

Libragen lets you package any documentation into portable, searchable libraries that your AI tools can query instantly.

Ground your AI in truth

RAG libraries give your coding agents authoritative documentation to cite, dramatically reducing hallucinations and made-up APIs.

✗ AI invents plausible-looking but wrong code

AI retrieves and cites actual documentation

// Before: AI guesses at API
fetch('/api/users', { method: 'POST' })  // Wrong!

// After: AI cites your docs
await client.users.create({ ... })  // Correct API
// Source: internal-api-docs v2.3.0

Always current, never stale

Rebuild libraries when docs change. Your agents get the latest API signatures, deprecation notices, and best practices—not 2-year-old training data.

✗ Stuck with LLM training cutoff

Update libraries in seconds

libragen build ./docs --name my-api

# When v2.4 releases:
libragen build ./docs --name my-api \
    --content-version 2.4.0

# ✓ Updated: my-api-2.4.0.libragen

Private, local, yours

Everything runs on your machine. No API keys, no cloud bills, no data leaving your network. Keep proprietary docs private while still making them AI-searchable.

✗ Send docs to third-party APIs

Data stays on your machine

# Share via git, S3, or collections:
cp my-api-2.4.0.libragen ~/team-libs/

# Team member installs:
libragen install ~/team-libs/ --name my-api

# Works in any MCP client instantly

See How It Works

Everything you need for AI-powered search

Build and distribute RAG libraries with a complete toolkit designed for simplicity and power.

Hybrid Search

Vector similarity + BM25 keyword search with reciprocal rank fusion. Find the most relevant docs, not just keyword matches.

MCP Native

First-class Model Context Protocol support. Works with Claude, Cursor, VS Code, Windsurf, and any MCP-compatible client.

Truly Portable

One .libragen file = complete library. Email it, Slack it, commit it, host it. Works offline, no accounts needed.

Private & Offline

Runs entirely on your machine. No API keys, no cloud accounts, no third-party services. Your proprietary docs stay private.

Collections

Curate bundles of useful libraries for your team. Installable with one command.

CLI + TypeScript API

Build and query from the command line, or integrate into your tools with the full @libragen/core API.

Built for every use case

Whether you're building AI agents, documenting software, or maintaining open source—libragen fits your workflow.

libragen_search response

Supercharge your agents with documentation

Give agents instant access to any documentation
MCP server discovers and queries libraries automatically
Reduce hallucinations with grounded retrieval

// MCP tool response
{
  "content": [
    {
      "source": "react-docs",
      "text": "useEffect lets you synchronize..."
    }
  ]
}

Terminal

Make your docs AI-searchable

Package your docs as searchable libraries
Distribute via collections for easy updates
Track versions alongside your releases

libragen build ./docs \
    --name my-product \
    --content-version 2.1.0

# ✓ Built: my-product-2.1.0.libragen

.github/workflows/release.yml

Help users find answers faster

Let users search your API with natural language
Publish to collections for discovery
Zero maintenance after initial setup

# Add to your CI/CD pipeline
- name: Build libragen library
  run: |
    npx @libragen/cli build ./docs \
      --name my-project \
      --content-version ${{ github.ref_name }}

- name: Upload to release
  uses: actions/upload-artifact@v4

Get started in 60 seconds

From installation to your first query in three simple steps.

Build

Create a library from your docs

Terminal

$ libragen build ./my-docs -n my-library

Query

Search with natural language

Terminal

$ libragen query -l my-library "How do I authenticate?"

Install (optional)

Install globally for convenience

Terminal

$ npm install -g @libragen/cli

We use libragen to build libragen! This site's docs are available as a library you can query locally. Download libragen-docs-0.3.0.libragen

View Full Guide

Automate It

Keep libraries updated with CI

Add one step to your docs build pipeline. Every time docs change, your RAG library stays in sync.

.github/workflows/docs.yml

# Your existing docs build workflow
name: Build Docs

on:
  push:
    paths:
      - 'docs/**'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      # Your existing docs build steps...

      # ✨ Add libragen in one step
      - name: Build RAG library
        run: |
          npx -y @libragen/cli build ./docs \
            --name my-project \
            --content-version ${{ github.sha }}

      - name: Upload library artifact
        uses: actions/upload-artifact@v4
        with:
          name: rag-library
          path: my-project-*.libragen

Auto-updates

Library rebuilds on every docs change

Version tracked

Library versions match your commits

Easy distribution

Publish to releases, S3, or collections

Works with any CI: GitHub Actions, GitLab CI, CircleCI, Jenkins, or local scripts.

@libragen/cli

MCP Compatible