# Fay

**Canonical:** https://apis.io/providers/fay/  
**Website:** https://faynutrition.com  
**APIs profiled:** 0

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.

## Kin Score — 10.5 / 100 (minimal)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-3.3 from 13.8).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

Regulatory layer — **Health**: 17.5 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Fay Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Tags

Company, Health, Healthcare, Nutrition, Dietitian, Telehealth, Insurance, Digital Health, Marketplace

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/fay/). Scores are computed from the provider's own public artifacts under a published rubric.