# Design Patterns

**Canonical:** https://apis.io/providers/design-patterns/  
**APIs profiled:** 1

Reusable solutions to commonly occurring problems in software design, including the Gang of Four catalog (creational, structural, behavioral) and core API design patterns such as HATEOAS, idempotency keys, webhooks, and sagas.

## Kin Score — 12.7 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 12.7).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 7.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 7.1 |
| 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)

- **Design Patterns Catalog** — Rules, capabilities, vocabulary, and linked-data description covering classic Gang of Four patterns and key API design patterns.

## Plans (1)

- **Design Patterns Plans Pricing**

## Tags

Best Practices, Object-Oriented Programming, Software Architecture, Software Engineering, API Design

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