# NATS

**Canonical:** https://apis.io/providers/nats/  
**Website:** https://nats.io  
**APIs profiled:** 15

A high-performance, cloud-native messaging system for microservices, IoT, and edge computing. Provides pub-sub, request-reply, and queue-based messaging patterns with at-most-once and at-least-once delivery guarantees.

## Kin Score — 41.3 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 41.3).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 58.5 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 42.9 |
| Commercial Clarity | 28.6 |
| Access Clarity | 28.6 |

## Agent readiness — 27.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | na |
| Error Semantics | no |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## Access

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

## APIs (15)

- **NATS Monitoring API** — HTTP monitoring API providing real-time server status, connection information, route details, subscription statistics, JetStream metrics, and health check endpoints for observab...
- **NATS Messaging API** — Asynchronous messaging API supporting core pub-sub, request-reply, queue groups, and JetStream persistent messaging with streams, consumers, key-value stores, and object stores.
- **NATS JetStream Management API** — The JetStream wire API provides a protocol-level management interface for configuring and operating JetStream streams, consumers, key-value buckets, and object stores. Requests ...
- **NATS Key-Value Store API** — The NATS Key-Value Store API is a JetStream-backed abstraction that provides immediately consistent, persistent associative array semantics. Clients can create buckets, get, put...
- **NATS Object Store API** — The NATS Object Store API is a JetStream-backed abstraction for storing and retrieving arbitrarily large binary objects using a chunking mechanism. Objects are identified by a b...
- **NATS Accounts API** — The Accounts API from NATS — 1 operation(s) for accounts.
- **NATS Clustering API** — Cluster, gateway, and leaf node endpoints
- **NATS Connections API** — The Connections API from NATS — 1 operation(s) for connections.
- **NATS Gateways API** — The Gateways API from NATS — 1 operation(s) for gateways.
- **NATS Health API** — The Health API from NATS — 1 operation(s) for health.
- **NATS JetStream API** — The JetStream API from NATS — 1 operation(s) for jetstream.
- **NATS Leaf Nodes API** — The Leaf Nodes API from NATS — 1 operation(s) for leaf nodes.
- **NATS Routes API** — The Routes API from NATS — 1 operation(s) for routes.
- **NATS Server API** — The Server API from NATS — 2 operation(s) for server.
- **NATS Subscriptions API** — The Subscriptions API from NATS — 1 operation(s) for subscriptions.

## Agentic access (1)

- **Nats Agentic Access** — 10 operations

## Security (1)

- **Nats Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Nats Plans Pricing**

## Tags

Cloud-Native, IoT, Message Broker, Microservices, Pub-Sub

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