# CalorieNinjas

**Canonical:** https://apis.io/providers/calorie-ninjas/  
**Website:** https://calorieninjas.com/  
**APIs profiled:** 3

CalorieNinjas provides an easy, free Nutrition Facts and Recipe API. Developers can retrieve nutrition information for over 100,000 foods and beverages using natural language queries, extract nutrition information from images of food-related text (menus, recipes, food journals), and search recipes matching search queries. All endpoints use a simple API key authentication model via the X-Api-Key header.

## Kin Score — 38.7 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 53.1 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 53.9 |
| Access Clarity | 53.9 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| 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 · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (3)

- **CalorieNinjas Imagetextnutrition API** — The Imagetextnutrition API from CalorieNinjas — 1 operation(s) for imagetextnutrition.
- **CalorieNinjas Nutrition API** — The Nutrition API from CalorieNinjas — 1 operation(s) for nutrition.
- **CalorieNinjas Recipe API** — The Recipe API from CalorieNinjas — 1 operation(s) for recipe.

## Agentic access (1)

- **Calorie Ninjas Agentic Access** — 3 operations · 1 acting

## Security (2)

- **Calorie Ninjas Authentication** — apiKey · 1 scheme
- **Calorie Ninjas Domain Security** — TLSv1.3

## Plans (1)

- **Calorie Ninjas Plans Pricing**

## Tags

Beverages, Foods, Image Recognition, Nutrition, Recipes

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