NutrientsDB

A curated global food-composition dataset of roughly 2.9 million food entries across 86 normalized nutrient fields, deduplicated across 180+ countries and sold under a one-time license as a downloadable file for local use rather than as a hosted, metered API. Every nutrient value is expressed per 100 g of food, with the unit encoded as a suffix on the field name, and a null value means the source did not report that nutrient rather than that the value is zero. NutrientsDB fronts the licensed dataset with a free, keyless, read-only Sample API that exposes a public 1,000-food slice carrying the identical 86-field schema, so developers, researchers, and AI builders can inspect the shape and density of the data before licensing it. The same sample is mirrored as plain JSON on GitHub and Hugging Face.

NutrientsDB publishes 1 API on the APIs.io network: Foods API. Tagged areas include nutrition, food, nutrients, food-composition, and data.

NutrientsDB’s developer surface includes authentication, documentation, API reference, engineering blog, support, pricing, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.2/100 thin ▬ flat Agent 39/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs 1 MCP Servers
nutritionfoodnutrientsfood-compositiondatasearchsample-datadatasetai-buildersreference-dataopen-datakeyless-api

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 41.2/100 · thin
Contract Quality 13.2 / 21
Developer Ergonomics 6.9 / 17
Commercial Clarity 5.4 / 17
Operational Transparency 0.6 / 11
Governance 2.2 / 10
Discoverability 6.0 / 9
Regulatory Posture 6.9 / 15
Agent readiness — 39/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/nutrientsdb: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

NutrientsDB Foods API

The Foods API from NutrientsDB — 1 operation(s) for foods.

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

NutrientsDB Sample Foods API

OPEN COLLECTION

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

Resolve a food name to a NutrientsDB record and read its nutrient profile

Two-step flow over the free, keyless NutrientsDB Sample API: search the public 1,000-food sample by name fragment, then re-fetch the chosen record by its stable public_id. Both ...

ARAZZO

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

nutrientsdb-mcp.yml

MCP SERVER

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

NutrientsDB Food

3 properties

JSON SCHEMA

Examples 5

Example request and response payloads for these APIs.

Nutrientsdb Error Missing Params

2 fields

EXAMPLE

Nutrientsdb Error Not Found

2 fields

EXAMPLE

Nutrientsdb Error Short Q

2 fields

EXAMPLE

Nutrientsdb Lookup

2 fields

EXAMPLE

Nutrientsdb Search

6 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Nutrientsdb Authentication

0 schemes

SECURITY

Nutrientsdb Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Nutrientsdb Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Lifecycle
Lifecycle
 Conformance
Conformance
 Vocabulary
Vocabulary

Build 2

SDKs, sample code, and the tooling you integrate with

Postman
Postman
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
name: NutrientsDB
description: A curated global food-composition dataset of roughly 2.9 million food entries across 86 normalized nutrient fields,
  deduplicated across 180+ countries and sold under a one-time license as a downloadable file for local use rather than as
  a hosted, metered API. Every nutrient value is expressed per 100 g of food, with the unit encoded as a suffix on the field
  name, and a null value means the source did not report that nutrient rather than that the value is zero. NutrientsDB fronts
  the licensed dataset with a free, keyless, read-only Sample API that exposes a public 1,000-food slice carrying the identical
  86-field schema, so developers, researchers, and AI builders can inspect the shape and density of the data before licensing
  it. The same sample is mirrored as plain JSON on GitHub and Hugging Face.
image: https://nutrientsdb.com/og-image.png
url: https://nutrientsdb.apievangelist.com/apis.yml
created: '2026-08-02'
modified: '2026-08-09'
specificationVersion: '0.21'
tags:
- nutrition
- food
- nutrients
- food-composition
- data
- search
- sample-data
- dataset
- ai-builders
- reference-data
- open-data
- keyless-api
apis:
- aid: nutrientsdb:nutrientsdb-foods-api
  name: NutrientsDB Foods API
  description: The Foods API from NutrientsDB — 1 operation(s) for foods.
  humanURL: https://www.nutrientsdb.com/api/docs
  baseURL: https://www.nutrientsdb.com/api
  tags:
  - Foods
  properties:
  - type: OpenAPI
    url: openapi/nutrientsdb-foods-api-openapi.yml
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/57076285/2sBY4TqJ5d
  - type: Documentation
    url: https://www.nutrientsdb.com/api/docs
  - type: Examples
    url: examples/_index.yml
  - type: ErrorCatalog
    url: errors/nutrientsdb-problem-types.yml
  - type: DataModel
    url: data-model/nutrientsdb-data-model.yml
  - type: JSONSchema
    url: json-schema/nutrientsdb-food.json
  - type: Arazzo
    url: arazzo/nutrientsdb-search-then-lookup.yml
maintainers:
- FN: Colinear Studio
  url: https://github.com/colinearstudio
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 80
  at: '2026-08-02T16:14:49.198Z'
common:
- type: MCPServer
  url: mcp/nutrientsdb-mcp.yml
- type: Overlay
  url: overlays/nutrientsdb-sample-api-overlay.yaml
- type: AgenticAccess
  url: agentic-access/nutrientsdb-agentic-access.yml
- type: DomainSecurity
  url: security/nutrientsdb-domain-security.yml
- type: Authentication
  url: authentication/nutrientsdb-authentication.yml
- type: Conventions
  url: conventions/nutrientsdb-conventions.yml
- type: Lifecycle
  url: lifecycle/nutrientsdb-lifecycle.yml
- type: Conformance
  url: conformance/nutrientsdb-conformance.yml
- type: Vocabulary
  url: vocabulary/nutrientsdb-nutrient-schema.yml
- type: LLMsTxt
  url: llms/nutrientsdb-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Documentation
  url: https://www.nutrientsdb.com/docs
- type: APIReference
  url: https://www.nutrientsdb.com/api/docs
- type: Postman
  url: https://documenter.getpostman.com/view/57076285/2sBY4TqJ5d
- type: GitHubOrganization
  url: https://github.com/colinearstudio
- type: Blog
  url: https://www.nutrientsdb.com/blog
- type: Support
  url: https://www.nutrientsdb.com/contact
- type: Pricing
  url: https://www.nutrientsdb.com/pricing
- type: TermsOfService
  url: https://www.nutrientsdb.com/terms
- type: PrivacyPolicy
  url: https://www.nutrientsdb.com/privacy
x-enrichment:
  date: '2026-08-09'
  status: enriched
  pass: local-v1
  artifacts_added: 28