# OpenAPI

**Canonical:** https://apis.io/providers/openapi/  
**Website:** https://www.openapis.org/  
**APIs profiled:** 1

OpenAPI (formerly Swagger Specification) is a standard, language-agnostic specification for describing RESTful APIs in a machine-readable format. It enables automated documentation generation, client code generation, and API testing, serving as a contract between API providers and consumers.

## Kin Score — 16.6 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 16.6).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 11.3 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 11.9 |
| 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)

- **OpenAPI Specification** — The OpenAPI Specification (OAS) defines a standard, programming language-agnostic interface description for HTTP APIs.

## Security (1)

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

## Plans (1)

- **Openapi Plans Pricing**

## Tags

Documentation, REST, Specification

---

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