specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: Function Health
providerId: function-health
created: '2026-06-20'
modified: '2026-06-20'
reconciled: true
tags:
- Health
- Longevity
- Lab Testing
- Biomarkers
- Preventive Health
- Consumer Health
- Plans
description: >-
  Function Health sells a single consumer membership rather than API plans, since
  it does not offer a developer API. The membership is a flat annual subscription
  that covers 100+ lab biomarkers tested twice a year via Quest Diagnostics,
  clinician review, biological age, and a personalized action plan. Optional
  clinical add-ons (whole-body MRI, CT, multi-cancer screening, etc.) are priced
  separately. Pricing here is reconciled against Function's public pricing pages
  but reflects consumer membership cost, not metered API usage.
notes: >-
  Function Health has publicly lowered membership pricing over time (previously
  $499/year, with a widely promoted $365/year rate); promotional discount codes
  and HSA/FSA eligibility can reduce the effective cost. Add-on prices are not
  fully published on the main pricing page. Verify current pricing at
  functionhealth.com/pricing on reconciliation. No API pricing exists because no
  public API is offered.
sources:
- https://www.functionhealth.com/pricing
- https://www.functionhealth.com/article/function365
- https://www.functionhealth.com/faqs/how-much-does-function-cost
plans:
- id: function-health-membership
  name: Function Membership
  type: subscription
  description: >-
    Annual consumer membership covering 100+ lab tests twice per year via Quest
    Diagnostics, clinician-reviewed results, biological age, trend tracking, AI
    health companion, and a personalized action plan. No insurance required;
    HSA/FSA eligible.
  entries:
  - label: Annual Membership
    name: annual_membership
    type: flat
    metric: subscription
    limit: 1
    timeFrame: year
    geo: us
    unit: 1
    price: $365-$499 per year (promotional and renewal rates vary)
    userMultiplied: true
  elements:
  - name: 100+ Lab Biomarkers (2x per year)
  - name: Clinician Review
  - name: Biological Age
  - name: Trend Tracking Across Rounds
  - name: AI Health Companion
  - name: Personalized Action Plan
- id: function-health-add-ons
  name: Clinical Add-Ons
  type: usage
  description: >-
    Optional advanced clinical tests available to members at additional cost,
    such as whole-body MRI, CT scans, and multi-cancer early detection (Galleri).
    Pricing is quoted in-product and not fully published.
  entries:
  - label: Advanced Add-Ons (MRI / CT / Galleri / etc.)
    name: add_ons
    type: usage
    metric: tests
    limit: -1
    timeFrame: usage
    geo: us
    unit: 1
    price: additional cost; see in-product pricing
    userMultiplied: true
  elements:
  - name: Whole-Body MRI
  - name: CT Scan
  - name: Galleri Multi-Cancer Test
  - name: Additional Advanced Panels
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com