# Cat Facts API

**Canonical:** https://apis.io/providers/catfact/  
**Website:** https://catfact.ninja/  
**APIs profiled:** 3

Free REST API providing random cat facts, breed information, and cat-related trivia for developers building fun applications and learning APIs. No authentication required; CORS enabled for frontend use. Endpoints return paginated JSON data with configurable limits and max-length filters.

## Kin Score — 32.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 32.1).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 60.4 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

## Agent readiness — 31.6 (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 | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## Access

Free · Open access — onboarding: open, pricing: free, trial: no (confidence: medium).

## APIs (3)

- **Cat Facts API Breeds API** — The Breeds API from Cat Facts API — 1 operation(s) for breeds.
- **Cat Facts API Fact API** — The Fact API from Cat Facts API — 1 operation(s) for fact.
- **Cat Facts API Facts API** — The Facts API from Cat Facts API — 1 operation(s) for facts.

## Agentic access (1)

- **Catfact Agentic Access** — 3 operations

## Security (1)

- **Catfact Domain Security** — TLSv1.3

## Plans (1)

- **Catfact Plans Pricing**

## Tags

Cat Facts, Trivia, Fun, Learning, Free

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