serviette

pathwaycom/serviette is an open-source project by pathwaycom: A no-code RAG server that keeps answers in sync with your documents. Works with 8 vector databases. Built on Pathway.. Indexed here so it can be found — not resold.

It is free. Get it from the upstream repository: https://github.com/pathwaycom/serviette

From the project's own README (excerpt, reproduced for discovery under its MIT license):

serviette

> Looking for llm-app templates? All templates, cookbooks and examples > are still available in full in the > Pathway repository under examples/llm-app.

A no-code, always up-to-date RAG server for any vector database — built on the Pathway Live Data Framework.

Point serviette at a folder of documents, pick a vector database and an embedder in one YAML file, and run two commands: you get a chat and a REST API that answer from those documents and cite their sources. From then on, any change to the documents — an edit, a new file, a deletion — is reflected in the answers within seconds.

serviette runs on Pathway, which needs a free license key — one click at (GitHub or LinkedIn sign-in). Every command below expects it in PATHWAYLICENSEKEY.

Try it in four commands:

Use pip 23.1 or newer (python -m pip install -U pip first): older pip lacks the resolver improvements this dependency tree needs and can take hours.

This indexes a small bundled corpus (a fictional coffee-machine company) into ./serviette-demo/docs and opens a chat over it. Edit or drop files into that folder while it runs — the answers follow within seconds.

One command to a live RAG stack — then edit a document and watch the answer change.

Who is it for

What you get. A question-answering assistant over your organisation's documents, with sources cited and answers that follow the documents: an edit, a new file or a deletion is reflected within seconds, with no re-upload or re-indexing step for anyone to run or forget.

What it costs to run. Two processes (an indexer and a server) and one YAML file. Embeddings can be computed locally for free; the Pathway license is free; the only metered component is the optional model API that writes the answer text, billed per…