specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: Function Health
providerId: function-health
created: '2026-06-20'
modified: '2026-06-20'
reconciled: false
tags:
- Health
- Longevity
- Lab Testing
- Biomarkers
- Consumer Health
- Rate Limiting
- Quotas
- Throttling
description: >-
  Function Health does not publish a public or developer API, so no API rate
  limits, quotas, or throttling policies are documented. The closest operational
  limits are product cadence limits on the consumer membership (lab testing
  scheduled twice per year, with on-demand add-on tests) rather than
  request-per-minute API throttles. There are no documented HTTP rate-limit
  headers or 429 throttling responses to reconcile.
notes: >-
  If Function Health publishes a developer or partner API in the future, this
  artifact should be reconciled with real RPM/RPD/quota values and any
  Retry-After / 429 behavior. Until then there is nothing programmatic to limit.
sources:
- https://www.functionhealth.com/faqs
- https://www.functionhealth.com/pricing
responseCodes: {}
limits:
- name: Lab Testing Cadence
  scope: member
  metric: lab_rounds
  limit: 2 per year (plus on-demand add-ons)
  notes: Product cadence, not an API rate limit. Comprehensive testing is run twice per membership year.
policies:
- name: No Public API
  description: No developer API is offered, so no API-level rate limiting, quotas, or throttling apply.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com