L-Nutra

L-Nutra, Inc. is a Los Angeles based nutri-technology company founded on the fasting-mimicking diet (FMD) research of Dr. Valter Longo at the USC Longevity Institute. It develops and sells clinically studied nutrition programs — the ProLon 5-Day Fasting Mimicking Diet, Fast Bar and related longevity nutrition products — direct to consumers, to healthcare providers, and through an employer and health-plan channel. L-Nutra is not a developer-platform company and publishes no developer portal, OpenAPI description or API reference of its own. Its machine-readable surface is the agentic-commerce layer of its three Shopify storefronts (prolonlife.com, l-nutrahealth.com and l-nutraprofessional.com): each serves an llms.txt / agents.md agent instruction document, a Universal Commerce Protocol (UCP) discovery profile at /.well-known/ucp, an anonymous MCP endpoint at /api/ucp/mcp exposing thirteen catalog, cart, checkout and order tools, a Shopify Storefront MCP endpoint at /api/mcp, and Shopify customer-account OpenID Connect discovery documents.

L-Nutra is listed with 3 APIs on the APIs.io network. Tagged areas include Company, Nutrition, Health, Longevity, and Consumer Products.

L-Nutra’s developer surface includes engineering blog, documentation, support, pricing, signup flow, authentication, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.6/100 thin ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

3 APIs 1 MCP Servers 2 Agent Skills

Company Nutrition Health Longevity Consumer Products E-Commerce Agentic Commerce Universal Commerce Protocol MCP Shopify

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 27.6/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 5.2 / 17

Access Clarity 8.3 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 6.1 / 9

Regulatory Posture 4.2 / 15

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health 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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points Ask about this →
Developer Ergonomics scores 30.4 — up to +13.9 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/l-nutra/apis.yml: open an issue on github.com/api-evangelist/l-nutra to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (shopify)

APIs 3

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

ProLon Life Agentic Commerce (UCP/MCP)

The agent-facing commerce surface of L-Nutra's direct-to-consumer ProLon storefront. An anonymous MCP endpoint at https://prolonlife.com/api/ucp/mcp implements Universal Commerc...

L-Nutra Health Agentic Commerce (UCP/MCP)

The agent-facing commerce surface of L-Nutra Health, the employer / health-plan channel storefront. An anonymous MCP endpoint at https://l-nutrahealth.com/api/ucp/mcp implements...

ProLon Professional Agentic Commerce (UCP/MCP)

The agent-facing commerce surface of L-Nutra Professional, the practitioner ordering storefront. An anonymous MCP endpoint at https://l-nutraprofessional.com/api/ucp/mcp impleme...

MCP Servers 1

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

L-Nutra MCP Server

L-Nutra operates no developer platform, but all three of its storefronts expose live, anonymous, remote MCP endpoints. Each storefront serves a Universal Commerce Protocol (UCP)...

MCP SERVER

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

answer-store-questions

AGENT SKILL

purchase-prolon-kit

AGENT SKILL

L-Nutra API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

L-Nutra Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

L-Nutra Rate Limits

0 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

L-Nutra

14 quoted statements, read from L-Nutra's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

L-Nutra

24 quoted statements, read from L-Nutra's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

L-Nutra

2 quoted statements, read from L-Nutra's own page on 2026-11-09.

ELIGIBILITY

Data License 1

How its data and outputs may be reused, quoted from its own terms.

L-Nutra

1 quoted statement, read from L-Nutra's own page on 2026-11-09.

LICENSE

Security Posture 2

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

L-Nutra Authentication

2 schemes

SECURITY

L-Nutra Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

L-Nutra Scopes

4 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

Idempotency

Lifecycle

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 6

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

UsageTerms

DataLicense

Company 3

The organization behind the API

Blog

Blog

BlogRSS

BlogRSS

Website

Website

Other 2

Properties that don't map to a standard resource type

DataProcessing

DataProcessing

Eligibility

Eligibility

Source (apis.yml)

aid: l-nutra
name: L-Nutra
description: 'L-Nutra, Inc. is a Los Angeles based nutri-technology company founded on the fasting-mimicking diet (FMD) research
  of Dr. Valter Longo at the USC Longevity Institute. It develops and sells clinically studied nutrition programs — the ProLon
  5-Day Fasting Mimicking Diet, Fast Bar and related longevity nutrition products — direct to consumers, to healthcare providers,
  and through an employer and health-plan channel. L-Nutra is not a developer-platform company and publishes no developer
  portal, OpenAPI description or API reference of its own. Its machine-readable surface is the agentic-commerce layer of its
  three Shopify storefronts (prolonlife.com, l-nutrahealth.com and l-nutraprofessional.com): each serves an llms.txt / agents.md
  agent instruction document, a Universal Commerce Protocol (UCP) discovery profile at /.well-known/ucp, an anonymous MCP
  endpoint at /api/ucp/mcp exposing thirteen catalog, cart, checkout and order tools, a Shopify Storefront MCP endpoint at
  /api/mcp, and Shopify customer-account OpenID Connect discovery documents.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://prolonlife.com/cdn/shop/files/Prolon_Icon_light_green.png
url: https://raw.githubusercontent.com/api-evangelist/l-nutra/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-23'
modified: '2026-10-06'
tags:
- Company
- Nutrition
- Health
- Longevity
- Consumer Products
- E-Commerce
- Agentic Commerce
- Universal Commerce Protocol
- MCP
- Shopify
tags_raw:
- Company
- Nutrition
- Health
- Longevity
- Consumer Products
- E-Commerce
- Agentic Commerce
- Universal Commerce Protocol
- Model Context Protocol
- Shopify
apis:
- name: ProLon Life Agentic Commerce (UCP/MCP)
  description: The agent-facing commerce surface of L-Nutra's direct-to-consumer ProLon storefront. An anonymous MCP endpoint
    at https://prolonlife.com/api/ucp/mcp implements Universal Commerce Protocol 2026-04-08 and returns thirteen tools (search_catalog,
    lookup_catalog, get_product, create/get/ update/cancel_cart, create/get/update/cancel/complete_checkout, get_order) with
    full JSON Schema 2020-12 input schemas. A second Shopify Storefront MCP endpoint at /api/mcp exposes five tools. Checkout
    completion requires contemporaneous human approval; the store's own robots.txt and llms.txt say so explicitly.
  humanURL: https://prolonlife.com/agents.md
  tags:
  - Agentic Commerce
  - MCP
  - Universal Commerce Protocol
  - E-Commerce
  tags_raw:
  - Agentic Commerce
  - Model Context Protocol
  - Universal Commerce Protocol
  - E-Commerce
  properties:
  - type: MCPServer
    url: mcp/l-nutra-mcp.yml
  - type: LLMsTxt
    url: llms/l-nutra-llms.txt
  - type: Documentation
    url: https://prolonlife.com/agents.md
  - type: TermsOfService
    url: https://prolonlife.com/policies/terms-of-service
  - type: PrivacyPolicy
    url: https://prolonlife.com/policies/privacy-policy
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
- name: L-Nutra Health Agentic Commerce (UCP/MCP)
  description: The agent-facing commerce surface of L-Nutra Health, the employer / health-plan channel storefront. An anonymous
    MCP endpoint at https://l-nutrahealth.com/api/ucp/mcp implements Universal Commerce Protocol 2026-04-08 with the same
    thirteen UCP tools. Its Shopify Storefront MCP endpoint at /api/mcp is configured more narrowly and returns only search_shop_policies_and_faqs.
  humanURL: https://l-nutrahealth.com/agents.md
  baseURL: https://l-nutrahealth.com
  tags:
  - Agentic Commerce
  - MCP
  - Universal Commerce Protocol
  - Health
  tags_raw:
  - Agentic Commerce
  - Model Context Protocol
  - Universal Commerce Protocol
  - Health
  properties:
  - type: MCPServer
    url: mcp/l-nutra-mcp.yml
  - type: Documentation
    url: https://l-nutrahealth.com/agents.md
  - type: TermsOfService
    url: https://l-nutrahealth.com/policies/terms-of-service
  - type: PrivacyPolicy
    url: https://l-nutrahealth.com/policies/privacy-policy
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
- name: ProLon Professional Agentic Commerce (UCP/MCP)
  description: The agent-facing commerce surface of L-Nutra Professional, the practitioner ordering storefront. An anonymous
    MCP endpoint at https://l-nutraprofessional.com/api/ucp/mcp implements Universal Commerce Protocol 2026-04-08 with the
    same thirteen UCP tools. This storefront publishes no /policies/* documents; its Shopify Storefront MCP endpoint returns
    only search_shop_policies_and_faqs.
  humanURL: https://l-nutraprofessional.com/agents.md
  baseURL: https://l-nutraprofessional.com
  tags:
  - Agentic Commerce
  - MCP
  - Universal Commerce Protocol
  - Healthcare Providers
  tags_raw:
  - Agentic Commerce
  - Model Context Protocol
  - Universal Commerce Protocol
  - Healthcare Providers
  properties:
  - type: MCPServer
    url: mcp/l-nutra-mcp.yml
  - type: Documentation
    url: https://l-nutraprofessional.com/agents.md
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://prolonlife.com/blogs/stories
  type: Blog
- url: https://prolonlife.com/blogs/stories.atom
  type: BlogRSS
- type: Website
  url: https://prolonlife.com/
- type: Documentation
  url: https://prolonlife.com/agents.md
- type: Support
  url: https://prolonlife.com/pages/faqs
- type: Pricing
  url: https://prolonlife.com/collections/all
- type: SignUp
  url: https://prolonlife.com/account/login
- type: TermsOfService
  url: https://prolonlife.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://prolonlife.com/policies/privacy-policy
- type: MCPServer
  url: mcp/l-nutra-mcp.yml
- type: ToolCrosswalk
  url: mcp/l-nutra-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/l-nutra-llms.txt
- type: WellKnown
  url: well-known/l-nutra-well-known.yml
- type: Authentication
  url: authentication/l-nutra-authentication.yml
- type: OAuthScopes
  url: scopes/l-nutra-scopes.yml
- type: Conformance
  url: conformance/l-nutra-conformance.yml
- type: Conventions
  url: conventions/l-nutra-conventions.yml
- type: Idempotency
  url: conventions/l-nutra-conventions.yml
- type: Lifecycle
  url: lifecycle/l-nutra-lifecycle.yml
- type: DataModel
  url: data-model/l-nutra-data-model.yml
- type: RateLimits
  url: rate-limits/l-nutra-rate-limits.yml
- type: Plans
  url: plans/l-nutra-plans-pricing.yml
- type: Packages
  url: packages/l-nutra-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/l-nutra-domain-security.yml
- type: UsageTerms
  url: terms/l-nutra-terms-of-service.yml
- type: DataProcessing
  url: privacy/l-nutra-privacy-policy.yml
- type: Eligibility
  url: eligibility/l-nutra-eligibility.yml
- type: DataLicense
  url: data-license/l-nutra-data-license.yml
x-enrichment:
  date: '2026-08-23'
  status: enriched
  artifacts_added: 33
  pass: local-v1

L-Nutra API — frequently asked questions

Does L-Nutra have an API?

Yes. APIs.io lists 3 APIs from L-Nutra, including ProLon Life Agentic Commerce (UCP/MCP), L-Nutra Health Agentic Commerce (UCP/MCP) and ProLon Professional Agentic Commerce (UCP/MCP).

How do I authenticate with the L-Nutra API?

L-Nutra documents its authentication (2 schemes). The details are profiled on APIs.io as L-Nutra Authentication.

Does L-Nutra have an MCP server?

Yes. APIs.io lists 1 MCP server for L-Nutra: L-Nutra operates no developer platform, but all three of its storefronts expose live, anonymous, remote MCP endpoints. Each storefront serves a Universal Commerce Protocol (UCP) 2026-04-08 discovery p

Is the L-Nutra API ready for AI agents?

L-Nutra has a Kin Score of 27.6 out of 100 (thin) and an Agent Readiness score of 20.5 (agent-aware), scored by API Evangelist on 2026-11-13.

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