Qrlew Server API

Qrlew is Sarus's open-source (Apache 2.0) SQL manipulation and differential-privacy engine, written in Rust and published under github.com/Qrlew. The Qrlew server wraps it in a small RESTful API — POST /dot, /rewrite_as_privacy_unit_preserving, /rewrite_with_differential_privacy, /verify and GET /public_key — distributed as the container image ghcr.io/qrlew/server:main and run by the operator. The demo host the README names (qrlew.sarus.app) no longer resolves to a live service, so this is a self-hosted surface only.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/qrlew-server"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: sarus:qrlew-server
name: Qrlew Server API
description: Qrlew is Sarus's open-source (Apache 2.0) SQL manipulation and differential-privacy engine,
  written in Rust and published under github.com/Qrlew. The Qrlew server wraps it in a small RESTful API
  — POST /dot, /rewrite_as_privacy_unit_preserving, /rewrite_with_differential_privacy, /verify and GET
  /public_key — distributed as the container image ghcr.io/qrlew/server:main and run by the operator.
  The demo host the README names (qrlew.sarus.app) no longer resolves to a live service, so this is a
  self-hosted surface only.
humanURL: https://github.com/Qrlew/server
baseURL: https://{qrlew-server-host}/
tags:
- SQL
- Differential Privacy
- Open-Source
tags_raw:
- SQL
- Differential Privacy
- Open Source
properties:
- type: SourceCode
  url: https://github.com/Qrlew/server
- type: Documentation
  url: https://qrlew.github.io/
- type: Examples
  url: examples/qrlew-server-example.http