Your data. Your LLM. Instant answers.

Record: free anonymous session

Need authentication? Create an account to read protected records.

or a file:

Format
CSV, TSV, JSONL
Max size
520 MB (ZIP or GZIP)
Keeping
Yours to keep (or not)

Agents: POST api.catalogian.com/v1/ephemeral/ingest with {"url": ...} to get a record and an MCP server, no account. See /llms.txt and /docs.

From paste to questionNo credit card required

  1. You paste a link

    Click Read Record and Catalogian reads your CSV, TSV, or JSONL file. The rows are read and stored temporarily.

  2. Your record is created

    The record is retained as it arrived. If a column stands out as unique, we suggest it as the key. You can change most settings later.

  3. You ask

    You'll immediately get a link to share with your LLM. Catalogian gives your LLM special tools that make it smarter and more token efficient. Ask anything.

What makes Catalogian different?

  1. Instant MCP server. Your LLM gets special tools that query large datasets without loading them into chat, fast and light on tokens. New insights, no wrangling files. Free records index up to 10,000 rows.

  2. Automatic history. Catalogian watches kept URL records and makes their change history available to you and your LLM. Kept records are watched even on the free tier. Upgrade, and we check more often and remember longer.

  3. And more with a free account. Secure integrations for Claude, ChatGPT, and Cursor. Advanced connection types. Git Repository. All waiting when you are ready.

What happens to your data

Marketing
Never used for it.
AI training
Never shared for it.
Keeping
Data is stored for the 24-hour session. Keep the record to retain it beyond that.