May website screenshot

May

May is a French digital-health company, operated by LN CARE SAS, whose mobile app supports future and new parents from fertility and pregnancy through the first years of a child's life. It pairs a medical messaging service staffed by French-qualified midwives, pediatric nurses and doctors — answering questions seven days a week from 8am to 10pm — with an expert-reviewed content library, roughly hour-long audio masterclasses, everyday tracking tools for sleep, feeding and weight, and Mya, an in-app AI medical assistant. Founded in Paris in 2020 by Cécilia Creuzet, Antoine Creuzet and Adrien Brunet, it reported more than 400,000 users and a team of around 80 health professionals, raised €7M in September 2024 to expand into Spain and the United Kingdom, and also sells a parental-support benefit to employers. It was surfaced as a portfolio company of Serena and profiled in the API Evangelist network; it publishes a consumer marketing site, a blog and an Intercom help center, but no public developer program, no API reference and no machine-readable API contract of any kind.

May is profiled on the APIs.io network. Tagged areas include Company, Health, Digital Health, Parenting, and Pregnancy.

May’s developer surface includes engineering blog, support, and 10 more developer resources.

13.6/100 emerging ▬ flat Agent 3/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
0 APIs
CompanyHealthDigital HealthParentingPregnancyMaternal HealthConsumer HealthMobile ApplicationEmployee BenefitsFrance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
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.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
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/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/may: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Pricing Plans 1

Published pricing tiers and plan structures.

May Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

May Rate Limits

0 limits

RATE LIMITS

Security Posture 1

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

May Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 6

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: may
name: May
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://www.may.app/wp-content/uploads/2025/05/logo_may_sapin_fond_transparent.png
description: May is a French digital-health company, operated by LN CARE SAS, whose mobile app supports future and new parents
  from fertility and pregnancy through the first years of a child's life. It pairs a medical messaging service staffed by
  French-qualified midwives, pediatric nurses and doctors — answering questions seven days a week from 8am to 10pm — with
  an expert-reviewed content library, roughly hour-long audio masterclasses, everyday tracking tools for sleep, feeding and
  weight, and Mya, an in-app AI medical assistant. Founded in Paris in 2020 by Cécilia Creuzet, Antoine Creuzet and Adrien
  Brunet, it reported more than 400,000 users and a team of around 80 health professionals, raised €7M in September 2024 to
  expand into Spain and the United Kingdom, and also sells a parental-support benefit to employers. It was surfaced as a portfolio
  company of Serena and profiled in the API Evangelist network; it publishes a consumer marketing site, a blog and an Intercom
  help center, but no public developer program, no API reference and no machine-readable API contract of any kind.
url: https://raw.githubusercontent.com/api-evangelist/may/refs/heads/main/apis.yml
x-type: company
x-source: serena-portfolio
x-backed-by:
- serena
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-08-17'
modified: '2026-08-17'
tags:
- Company
- Health
- Digital Health
- Parenting
- Pregnancy
- Maternal Health
- Consumer Health
- Mobile Application
- Employee Benefits
- France
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/may-domain-security.yml
- type: Website
  url: https://www.may.app/
- type: About
  url: https://www.may.app/mission-may/
- type: Blog
  url: https://www.may.app/blog/
- type: BlogRSS
  url: https://www.may.app/feed/
- type: Support
  url: https://intercom.help/may-fdff94332145/fr/
- type: TermsOfService
  url: https://www.may.app/cgu/
- type: PrivacyPolicy
  url: https://www.may.app/politique-de-confidentialite/
- type: LinkedIn
  url: https://www.linkedin.com/company/may-sante/
- type: Facebook
  url: https://www.facebook.com/MaySanteParentalite/
- type: LLMsTxt
  url: llms/may-llms.txt
- type: Conformance
  url: conformance/may-conformance.yml
x-domain-note: may-sante.com (the URL Serena's portfolio profile lists) 301-redirects to https://www.may.app/, which is the
  canonical marketing host and the one every probe in this profile was run against. Both domains are the company's own. The
  legal operating entity is LN CARE SAS, 112 avenue de Paris, 94306 Vincennes, France (R.C.S. Créteil 879 732 584); contact@may-sante.com.
x-source-classification-note: Serena's own portfolio profile tags May as `edtech` (with `healthtech` secondary), which is
  how the original stub arrived carrying an Edtech tag. The company's product is a regulated-adjacent consumer health service
  — medical messaging with qualified perinatal clinicians and health-data hosting on an HDS-certified host — so the tags here
  are set to digital health / parenting rather than education technology.
x-enrichment:
  date: '2026-08-17'
  status: minimal
  artifacts_added: 6
  pass: local-v1
  note: 'Full STEP 0b contract-discovery pass run against every host: the canonical marketing host (www.may.app), the legacy
    brand domain (may-sante.com, which 301s to it), the two subdomains found in certificate-transparency logs (capig.may.app,
    go.may.app — neither resolves), and the guessed api./app./developer./docs. patterns (NXDOMAIN on may.app). Probed for
    REST OpenAPI/Swagger, GraphQL introspection, MCP tools/list, AsyncAPI and both A2A agent-card paths. No machine-readable
    contract of any kind exists, no first-party SDK exists on any registry, and there is no GitHub organization. The company
    was reclassified from the stub''s Edtech tag to digital health / parenting.'
x-coverage:
  state: none
  reason: no-developer-program
  detail: May is a direct-to-consumer mobile health app for parents — the whole public surface is a 51-page WordPress marketing
    site in three locales plus a seven-collection Intercom help center whose only partner-facing section routes health professionals,
    press and partnerships to an email conversation, and the sole backend hostname in the company's public DNS (capig.may.app,
    found in certificate-transparency logs) is a dangling CNAME to a deleted AWS Kubernetes ingress load balancer in eu-west-3.
  evidence:
  - url: https://www.may.app/openapi.json
    status: 404
  - url: https://www.may.app/graphql
    status: 404
  - url: https://www.may.app/.well-known/agent-card.json
    status: 404
  - url: https://www.may.app/.well-known/agent.json
    status: 404
  - url: https://www.may.app/.well-known/security.txt
    status: 404
  - url: https://www.may.app/llms.txt
    status: 404
  - url: https://www.may.app/page-sitemap.xml
    status: 200
  - url: https://www.may.app/wp-json/
    status: 200
  - url: https://may-sante.com/
    status: 301
  checked: '2026-08-17'

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