Function Health

Function Health is a consumer longevity and preventive-health membership that runs 100+ lab biomarkers twice a year through Quest Diagnostics, adds clinician review, a biological age calculation, and an AI health companion via a web and mobile dashboard. As of this catalog Function Health does not publish a public or partner developer API; member data is accessed through the member dashboard, PDF export, in-product Connected Apps (wearable sync), and an opt-in ChatGPT app that shares a high-level summary of results.

Function Health publishes 4 APIs on the APIs.io network, including Member Dashboard, Results Export, Connected Apps, and 1 more. Tagged areas include Health, Longevity, Lab Testing, Biomarkers, and Preventive Health.

Function Health’s developer surface includes documentation and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.9/100 emerging ▬ flat Agent 18/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessPaid
4 APIs
HealthLongevityLab TestingBiomarkersPreventive HealthConsumer Health

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 24.9/100 · emerging
Contract Quality 6.1 / 21
Developer Ergonomics 1.6 / 17
Access Clarity 6.3 / 17
Operational Transparency 2.3 / 11
Contract Governance 0.0 / 10
Discoverability 5.5 / 9
Regulatory Posture 2.1 / 15
Agent readiness — 18/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
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 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 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 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.
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/function-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 →

APIs 4

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

Function Health Member Dashboard

Authenticated member web and mobile dashboard for viewing 100+ lab biomarkers, trends across testing rounds, clinician notes, biological age, and a personalized action plan. The...

Function Health Results Export

Member-initiated PDF export of lab results from the documents area of the dashboard. This is a manual download for data portability, not a programmatic API; third-party trackers...

Function Health Connected Apps

In-product Connected Apps let members link supported consumer health services (e.g. wearables and Apple Health) to sync data into Function. These are pre-built, member-authorize...

Function Health ChatGPT App

An opt-in app within ChatGPT through which a member can authorize secure access to a limited, high-level summary of their lab results, with the ability to revoke access at any t...

Open Collections 2

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

API Collection

OPEN COLLECTION

Function Health API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Function Health Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Function Health Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Function Health Finops

FINOPS

Security Posture 2

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

Function Health Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Function Health Trust Center

SOC 2, HIPAA

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Access & Security 2

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: function-health
url: https://raw.githubusercontent.com/api-evangelist/function-health/refs/heads/main/apis.yml
name: Function Health
kind: company
description: Function Health is a consumer longevity and preventive-health membership that runs 100+ lab biomarkers twice
  a year through Quest Diagnostics, adds clinician review, a biological age calculation, and an AI health companion via a
  web and mobile dashboard. As of this catalog Function Health does not publish a public or partner developer API; member
  data is accessed through the member dashboard, PDF export, in-product Connected Apps (wearable sync), and an opt-in ChatGPT
  app that shares a high-level summary of results.
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/function-health.png
tags:
- Health
- Longevity
- Lab Testing
- Biomarkers
- Preventive Health
- Consumer Health
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: function-health:function-health-member-dashboard
  name: Function Health Member Dashboard
  tags:
  - Lab Results
  - Biomarkers
  - Dashboard
  - Consumer Health
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://my.functionhealth.com
  properties:
  - url: https://www.functionhealth.com
    type: Website
  - url: https://my.functionhealth.com/documents
    type: Signup
  - url: openapi/_original/function-health-openapi.yml
    type: OpenAPI
  description: Authenticated member web and mobile dashboard for viewing 100+ lab biomarkers, trends across testing rounds,
    clinician notes, biological age, and a personalized action plan. There is no documented public API behind the dashboard;
    access is interactive only.
- aid: function-health:function-health-results-export
  name: Function Health Results Export
  tags:
  - Export
  - PDF
  - Lab Results
  - Data Portability
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://my.functionhealth.com/documents
  properties:
  - url: https://my.functionhealth.com/documents
    type: Documentation
  - url: openapi/_original/function-health-openapi.yml
    type: OpenAPI
  description: Member-initiated PDF export of lab results from the documents area of the dashboard. This is a manual download
    for data portability, not a programmatic API; third-party trackers import the resulting PDF.
- aid: function-health:function-health-connected-apps
  name: Function Health Connected Apps
  tags:
  - Integration
  - Wearables
  - Connected Apps
  - Data Sync
  tags_raw:
  - Integrations
  - Wearables
  - Connected Apps
  - Data Sync
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.functionhealth.com/faqs/does-function-integrate-with-oura-fitbit-apple-health-or-other-health-services
  properties:
  - url: https://www.functionhealth.com/faqs/does-function-integrate-with-oura-fitbit-apple-health-or-other-health-services
    type: Documentation
  - url: openapi/_original/function-health-openapi.yml
    type: OpenAPI
  description: In-product Connected Apps let members link supported consumer health services (e.g. wearables and Apple Health)
    to sync data into Function. These are pre-built, member-authorized integrations configured in the app, not a developer
    API that third parties can build against.
- aid: function-health:function-health-chatgpt-app
  name: Function Health ChatGPT App
  tags:
  - ChatGPT
  - Artificial Intelligence
  - Data Sharing
  - Member Authorized
  tags_raw:
  - ChatGPT
  - AI
  - Data Sharing
  - Member Authorized
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.functionhealth.com
  properties:
  - url: https://clpmag.com/lab-essentials/information-technology/function-health-integrates-lab-data-chatgpt-app/
    type: Documentation
  - url: openapi/_original/function-health-openapi.yml
    type: OpenAPI
  description: An opt-in app within ChatGPT through which a member can authorize secure access to a limited, high-level summary
    of their lab results, with the ability to revoke access at any time. Surfaced through the ChatGPT app ecosystem; Function
    does not document a standalone public API for it.
common:
- type: TrustCenter
  url: security/function-health-trust-center.yml
- type: DomainSecurity
  url: security/function-health-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/function-health
- type: Website
  url: https://www.functionhealth.com
- type: Documentation
  url: https://www.functionhealth.com/faqs
- type: Plans
  url: plans/function-health-plans-pricing.yml
- type: RateLimits
  url: rate-limits/function-health-rate-limits.yml
- type: FinOps
  url: finops/function-health-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com