Fay

Fay (Fay Health, Inc.) is a digital-health marketplace that connects members with registered dietitians and nutritionists and handles the insurance billing so nutrition counseling is covered — often at little or no out-of-pocket cost. The platform offers telehealth consultations, personalized meal planning, and support for chronic condition management, backed by iOS and Android apps and a member help center. Fay reports 4,000+ registered dietitians, 700+ accepted insurance plans, and 100,000+ members. It is backed by Forerunner Ventures and General Catalyst and is tracked in the API Evangelist network as a portfolio-lead company profile; Fay publishes no public developer or API surface at this time.

Fay is profiled on the APIs.io network. Tagged areas include Company, Health, Healthcare, Nutrition, and Dietitian.

Fay’s developer surface includes engineering blog, support, signup flow, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

17.2/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyHealthHealthcareNutritionDietitianTelehealthInsuranceDigital HealthMarketplace

Kin Score

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

Composite quality — 17.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 6.8 / 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/fay: 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 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: fay
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fay.png
name: Fay
description: Fay (Fay Health, Inc.) is a digital-health marketplace that connects members with registered dietitians and nutritionists
  and handles the insurance billing so nutrition counseling is covered — often at little or no out-of-pocket cost. The platform
  offers telehealth consultations, personalized meal planning, and support for chronic condition management, backed by iOS
  and Android apps and a member help center. Fay reports 4,000+ registered dietitians, 700+ accepted insurance plans, and
  100,000+ members. It is backed by Forerunner Ventures and General Catalyst and is tracked in the API Evangelist network
  as a portfolio-lead company profile; Fay publishes no public developer or API surface at this time.
url: https://raw.githubusercontent.com/api-evangelist/fay/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- forerunner-ventures
- general-catalyst
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Health
- Healthcare
- Nutrition
- Dietitian
- Telehealth
- Insurance
- Digital Health
- Marketplace
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://faynutrition.com
- type: Blog
  url: https://www.faynutrition.com/blog
- type: Support
  url: https://help.faynutrition.com
- type: SignUp
  url: https://signup.faynutrition.com/quiz
- type: PrivacyPolicy
  url: https://www.faynutrition.com/privacy-policy
- type: TermsOfService
  url: https://www.faynutrition.com/terms
- type: DomainSecurity
  url: security/fay-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Fay