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Lightweight document search for agentic RAG

PDFs, slides and scans getting in your agent's way? Sergo reads them, and your agents search them over MCP — each one only the folders you pick.

Deploy on-premisesSource on request.
Free for evaluation and non-commercial use.
people
sergo
foldersreport.pdfdeck.pptxscan.pdf
processorsBasicStandard (AI)
searchPostgresOpenSearch
agent
The Sergo console: a folder with two slide decks, who manages it and which agent keys can read it.

01How it works

We kept it simple.

From a shared folder to a cited answer, in three steps.

  1. 01

    Files go into folders. Share a folder with the developer who builds the agent, and you both work on the same files.

    fig. 1 · Share
    Sharing the Energy outlooks folder: Noah Carter, a developer, found and about to be added.
  2. 02

    Basic reads the text already in the file, for free. Standard (AI) has a model read each page, and shows the cost before anything runs.

    fig. 2 · Process
    Processing two files: Basic, free, or Standard (AI) with a model, an estimated cost and the balance after it.
  3. 03

    Name the agent, say what it is for, and tick the folders it may read. The key you get is its own MCP server.

    fig. 3 · New agent key
    A new key for an agent: its name, what it is for, and the folder it can read, with its two files.

02MCP

And this is what your agent does with it.

It searches the text first, and looks at the page when it isn't sure.

  1. Agent
  2. search{"query": "electric vehicle sales share"}
  3. Sergo MCP
  4. result{"page": 20, "view_page_may_help": true, "excerpt": "# IRA incentives speed growth in sales…"}
  5. view_page{"document_id": "tGzncP7F", "page": 20, "format": "pdf"}
  6. pagePDFpage 20 of 25
Read the MCP reference

03Features

And a few more things.

  • search

    Start on Postgres, move to OpenSearch

    Search runs in the Postgres you already have. When it outgrows that, build an OpenSearch index alongside and switch once it is ready.

  • files

    Office files become PDFs

    Word, PowerPoint and Excel files get a PDF copy. A page number means the same page to people and agents, and any page can be shown as a picture.

  • credits

    Credits for each person

    Admins grant credits to each person and set the price of each model. A job is charged for what it used, and a failed one costs nothing.

  • presets

    Your own presets and processors

    A preset says which processor reads each file type. Add your own, and plug in a parser you trust: a processor is any container that follows a small contract.

Try it with your own documents.

Deploy on-premisesSource on request.
Free for evaluation and non-commercial use.