# Project Nessie

**Canonical:** https://apis.io/providers/project-nessie/  
**Website:** https://projectnessie.org  
**APIs profiled:** 1

Project Nessie is an open-source project providing a transactional catalog for data lakes, offering Git‑like semantics for versioned data. It enables users to manage and query data across multiple storage systems, supports branching, tagging, and merging of data states, and integrates with tools such as Apache Iceberg, Spark, Flink, and Hive. The project aims to simplify data governance, reproducibility, and collaboration in modern data engineering workflows, fostering a community-driven ecosystem with extensive documentation, guides, and community support.

## Kin Score — 22.4 / 100 (emerging)

Scored 2026-11-06 under rubric 0.27.0. Trend: falling (-5.3 from 27.7).

| Facet | Score |
|---|---|
| Discoverability | 62.5 |
| Contract Quality | 29.4 |
| Contract Governance | 18.2 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 24.3 |
| Access Clarity | 0.0 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 10.8 (matched via fallback).

## Agent readiness — 21.7 (agent-aware)

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

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (1)

- **Project Nessie Config API** — The Config API from Project Nessie — 1 operation(s) for config.

## Agentic access (1)

- **Project Nessie Agentic Access** — 1 operation

## Security (1)

- **Project Nessie Domain Security** — TLSv1.3 · HSTS · DNSSEC

## Tags

Company, Open Source, Data Lake, Version Control, Community

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