# Apache Curator

**Canonical:** https://apis.io/providers/apache-curator/  
**Website:** https://curator.apache.org/  
**APIs profiled:** 1

Apache Curator is a Java/JVM client library for Apache ZooKeeper, governed by the Apache Software Foundation, that provides a high-level API framework, fluent builders, and pre-built distributed coordination recipes including leader election, distributed locks, barriers, caches, counters, and service discovery. It significantly simplifies writing reliable distributed applications.

## Kin Score — 27.3 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 27.3).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 29.6 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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 |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **Apache Curator** — Curator provides a high-level Java API with fluent builders for ZooKeeper operations, along with pre-built recipes for leader election, distributed locks (shared, reentrant, rea...

## Security (2)

- **Apache Curator Domain Security** — TLSv1.3 · HSTS · DMARC
- **Apache Curator Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Apache Curator Plans Pricing**

## Use cases (6)

- **Distributed Leader Election** — Elect a single leader across a cluster for coordinating distributed workloads, using LeaderLatch or LeaderSelector recipes.
- **Distributed Locking** — Prevent concurrent access to shared resources across JVMs using InterProcessMutex and related lock recipes.
- **Service Registry and Discovery** — Register microservices with ZooKeeper and discover them by type using curator-x-discovery.
- **Distributed Configuration** — Store and watch shared configuration data across a cluster with automatic change notifications via NodeCache.
- **Cluster Membership Tracking** — Track which nodes are alive in a distributed cluster using GroupMember and PersistentNode recipes.
- **Distributed Counters and IDs** — Generate globally unique sequential IDs or maintain shared atomic counters across a cluster.

## Tags

Apache, Distributed Coordination, Distributed Systems, Java, Maven, Open-Source, Service Discovery, ZooKeeper

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