Big Sky Health

Big Sky Health (now operating as Zero Longevity Science, Inc.) is a Bozeman, Montana consumer digital-health company best known for Zero, one of the most popular intermittent-fasting and nutrition-tracking mobile apps. Zero combines a fasting timer, photo-based meal and protein logging, a personalized Protein Score, and water-intake tracking to help users manage body composition and adopt science-backed longevity practices. The company runs as a direct-to-consumer mobile subscription business (Zero Plus) on iOS and Android. As of this profile it publishes no public developer API, SDK, MCP server, or developer program. It was added to the API Evangelist network as a Trinity Ventures portfolio company awaiting enrichment.

Big Sky Health is profiled on the APIs.io network. Tagged areas include Company, Healthcare, Digital Health, Fasting, and Nutrition.

Big Sky Health’s developer surface includes engineering blog, support, pricing, signup flow, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.0/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyHealthcareDigital HealthFastingNutritionLongevityConsumer AppMobile

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 19.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 8.9 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/big-sky-health: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Pricing

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: big-sky-health
name: Big Sky Health
description: Big Sky Health (now operating as Zero Longevity Science, Inc.) is a Bozeman, Montana consumer digital-health
  company best known for Zero, one of the most popular intermittent-fasting and nutrition-tracking mobile apps. Zero combines
  a fasting timer, photo-based meal and protein logging, a personalized Protein Score, and water-intake tracking to help users
  manage body composition and adopt science-backed longevity practices. The company runs as a direct-to-consumer mobile subscription
  business (Zero Plus) on iOS and Android. As of this profile it publishes no public developer API, SDK, MCP server, or developer
  program. It was added to the API Evangelist network as a Trinity Ventures portfolio company awaiting enrichment.
url: https://raw.githubusercontent.com/api-evangelist/big-sky-health/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://zerolongevity.com/framer-assets/images/LahjgauHESHlfOouYREz3bAGkME.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-also-known-as: Zero Longevity Science, Inc.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Healthcare
- Digital Health
- Fasting
- Nutrition
- Longevity
- Consumer App
- Mobile
apis: []
common:
- type: DomainSecurity
  url: security/big-sky-health-domain-security.yml
- type: Website
  url: https://zerolongevity.com
- type: Blog
  url: https://zerolongevity.com/blog/
- type: Support
  url: https://zerofasting.zendesk.com/hc/en-us
- type: PrivacyPolicy
  url: https://zerolongevity.com/privacy-policy
- type: TermsOfService
  url: https://zerolongevity.com/terms-of-use
- type: Pricing
  url: https://zerolongevity.com/plus
- type: SignUp
  url: https://apps.apple.com/us/app/zero-fasting-food-tracker/id1168348542
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence