# Sarus

**Canonical:** https://apis.io/providers/sarus/  
**Website:** https://www.sarus.tech/  
**APIs profiled:** 2

Sarus Technologies is a Paris-based privacy-engineering company (Y Combinator W22, founded 2020 by the team behind AlephD) that builds a privacy layer sitting between sensitive data and the analysts, data scientists and LLMs that need it. The Sarus platform deploys inside the customer's own infrastructure — Docker or Kubernetes, on-premises or on AWS, Azure and GCP — and applies differential privacy, DP-trained synthetic data and on-the-fly SQL and Python query rewriting so practitioners can run analytics, machine learning and LLM fine-tuning on data they never see. Developers reach the platform through the first-party 'sarus' Python client for the Sarus Gateway, a BI connector, and Qrlew, Sarus's open-source Rust SQL-rewriting engine. Because the product is customer-deployed, Sarus publishes no hosted, multi-tenant API base URL and no OpenAPI; its public machine-readable surface is the Sarus Data Spec protobuf schema and the Qrlew server's published request examples.

## Kin Score — 26.8 / 100 (thin)

Scored 2026-09-08 under rubric 0.20.0. Trend: flat (+0.0 from 26.8).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 33.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 35.7 |
| Commercial Clarity | 10.5 |
| Access Clarity | 10.5 |

## Agent readiness — 19.2 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (2)

- **Sarus Gateway API** — The Sarus Gateway is the server component of the Sarus privacy layer. It is deployed inside the customer's own environment (Docker or Kubernetes, on-premises or in AWS/Azure/GCP...
- **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 ...

## Tags

Company, Ai Data, Privacy, Differential Privacy, Synthetic Data, Analytics, Machine-Learning, Data Governance, SQL, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/sarus/). Scores are computed from the provider's own public artifacts under a published rubric.