# Optic

**Canonical:** https://apis.io/providers/optic/  
**Website:** https://www.useoptic.com  
**APIs profiled:** 1

Optic is an open source tool for OpenAPI linting, diffing, and testing that helps prevent breaking changes, publish accurate documentation, and improve API design through behavior-aware specification comparison and forwards-only governance.

## Kin Score — 11.8 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 11.8).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 4.8 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 2.5 (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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

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

## APIs (1)

- **Optic CLI** — The Optic CLI provides OpenAPI diffing, linting, and breaking change detection from the command line, comparing two versions of an OpenAPI specification using behavior-aware dif...

## Security (2)

- **Optic Domain Security** — DMARC
- **Optic Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Optic Plans Pricing**

## Tags

API Governance, Breaking Changes, Contract Testing, Diff, Linting, OpenAPI, Testing

---

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