Grouper

Grouper, operated by Element3 Health, Inc. (d/b/a Grouper) and headquartered in Boston, Massachusetts, is a healthy-aging benefit company that connects older adults to social clubs, group activities, and virtual community programming through health plans. Its consumer product, "Hello by Grouper," is a membership platform offering live and on-demand instructor-led virtual classes, research-based monthly brain-health challenges, and members-only online events, with the goal of keeping members active, socially connected, and healthier as they age. Grouper distributes primarily through Medicare Advantage and other health-plan partners rather than a direct developer channel; it publishes no public developer portal, API, or SDK surface as of this profile, which was added to the API Evangelist network as a venture (a16z-associated) portfolio lead.

Grouper is profiled on the APIs.io network. Tagged areas include Company, Healthy Aging, Health and Wellness, Older Adults, and Medicare Advantage.

Grouper’s developer surface includes support, signup flow, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.3/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

Company Healthy Aging Health and Wellness Older Adults Medicare AdvantageSocial ConnectionMembership Consumer Health

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 11.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 0.8 / 17

Access Clarity 4.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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.

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/. This rating is computed from github.com/api-evangelist/grouper: 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 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

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

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: grouper
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/grouper.png
name: Grouper
description: Grouper, operated by Element3 Health, Inc. (d/b/a Grouper) and headquartered in Boston, Massachusetts, is a healthy-aging
  benefit company that connects older adults to social clubs, group activities, and virtual community programming through
  health plans. Its consumer product, "Hello by Grouper," is a membership platform offering live and on-demand instructor-led
  virtual classes, research-based monthly brain-health challenges, and members-only online events, with the goal of keeping
  members active, socially connected, and healthier as they age. Grouper distributes primarily through Medicare Advantage
  and other health-plan partners rather than a direct developer channel; it publishes no public developer portal, API, or
  SDK surface as of this profile, which was added to the API Evangelist network as a venture (a16z-associated) portfolio lead.
url: https://raw.githubusercontent.com/api-evangelist/grouper/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
x-legal-name: Element3 Health, Inc.
x-headquarters: Boston, MA, USA
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Healthy Aging
- Health and Wellness
- Older Adults
- Medicare Advantage
- Social Connection
- Membership
- Consumer Health
apis: []
common:
- type: DomainSecurity
  url: security/grouper-domain-security.yml
- type: Website
  url: https://hellogrouper.com
- type: Support
  url: https://hellogrouper.com/get-help/
- type: SignUp
  url: https://hello.hellogrouper.com/enroll
- type: Login
  url: https://grouper.hellogrouper.com/
- type: TermsOfService
  url: https://hellogrouper.com/app-terms-of-use/
- type: PrivacyPolicy
  url: https://hellogrouper.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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