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Zero per-query cost
Free to start · No credit card
Retrieval in milliseconds
Data stored in EU
Knowledge Product · Developer Preview

Your docs, searchable.

Semantic search over your documentation - with no LLM at query time.
Zero hallucination. Zero per-query cost. Returns in milliseconds.

Live demo · VS Code docs

Watch an AI quote your documentation.

Your AI asks a question. Ragionex returns the exact passage - with source, with media, without inventing a single word.

AI Assistant
Ask a question...
How it works

Three steps. One simple HTTP call.

Drop your docs in. We turn the chaos into context your AI can trust.

1 UPLOAD

Send your docs.

Send us PDFs, DOCX, Markdown, HTML. Text, images, video - all of it. We turn the messy reality into clean context your AI can use.

2 PROCESS

We do the messy work.

Every image, diagram, and recording in your docs is indexed and searchable. Built to find the right answer every time.

3 QUERY

Your AI retrieves.

POST a question to /v1/knowledge/search. We return the most relevant passages with sources - ready to quote inside your model's context window.

What makes it different

Built for the part of context engineering nobody wants to maintain.

We did the engineering most teams underestimate. Six months of context infrastructure, distilled into one HTTP call. You ship the AI.

01 / Retrieval

Semantic, not keyword.

Real users phrase things badly. We made it not matter. Same answer, every time.

02 / Cost

Zero runtime AI cost.

Every query: instant, predictable, free. No AI bills at runtime. We did the heavy lifting once, upfront. You just ask.

03 / Media

Images, videos, animations & diagrams are searchable.

Half your docs are images. Most search engines treat them like decoration. We taught ours to see. Users find answers inside the picture.

04 / Speed

Returns in milliseconds.

Purpose-built retrieval runs entirely on our infrastructure. Your AI gets context faster than it can start generating a single token.

Free demo key

Try it. No signup needed.

The demo key is indexed on the full VS Code documentation (licensed under CC BY 3.0 US) - every feature, command, setting, screenshot, and video walkthrough is searchable. Shared across testers, rate-limited per IP. Pick a language below, copy the snippet, and run it. See the docs for more info →

import requests

response = requests.post(
    "https://api.ragionex.com/v1/knowledge/search",
    headers={"X-API-Key": "rgx_knowledge_demo_geXuBZJ5O2GltcG63s1LGijGBwlERGlo"},
    json={
        "question": "How do I format code in VS Code?",
        "collection": "vscode-docs",
        "results": 10,
    },
)
data = response.json()
print(data)

How to ask

Natural language, not keywords.

Ask the way you would in a chat. Full, natural questions return the precise passage; loose keywords miss the meaning and return weak matches.

debug python breakpoints
How do I debug Python in VS Code?
One focused question per call.

A focused question gets the sharpest answer. Open-ended prompts like "tell me everything" come back vague - if you need broader coverage, just make several focused calls and combine the results in your app.

Tell me everything about debugging in VS Code
How do breakpoints work in VS Code?
Compound questions → split them.

Let your AI agent break complex, multi-topic questions into simple sub-questions automatically. Each sub-question returns a clean answer; feed them back to your AI as context so it can pull the relevant pieces and craft the final reply.

How do I use Git and configure the terminal in VS Code?
How do I use Git in VS Code?
How do I configure the terminal in VS Code?
Tune the request.

Pass "collection": "vscode-docs" - the only collection on this demo key. Tune "results": N to size each response - higher N returns more related passages, so set it to fit your use case. The engine always returns the closest matches it has, so off-topic questions get the nearest VS Code passage, not silence.

How do I edit images in Photoshop?
How do I split the editor in VS Code?
Closed Beta

Use with your own docs.

Be first to try Ragionex with your own documentation.
We're opening Closed Beta soon. Drop your email and we'll notify you when it's your turn.

No spam. Just one email when beta opens.