Caremessage

CareMessage is a healthcare technology non-profit that operates one of the largest patient engagement platforms serving low-income and underserved populations across the United States. Since 2013 the platform has reached more than 20 million patients and is used by roughly 1 in 7 federally qualified health centers plus 200+ free clinics. Its products include 1:1 direct messaging, appointment lifecycle messaging, population outreach, health coaching, closed-loop referrals, Social Determinants of Health (SDOH) workflows, and Wellness Copilot, an AI-backed diabetes-management automation. CareMessage does not currently publish a public developer API, SDK, or API reference; access to the platform is through its web application and a login-gated help center. This profile was surfaced as a Y Combinator portfolio company and enriched from CareMessage's public web surface.

Caremessage is profiled on the APIs.io network. Tagged areas include Company, Healthcare, Patient Engagement, Messaging, and Communications.

Caremessage’s developer surface includes support, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

17.2/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyHealthcarePatient EngagementMessagingCommunicationsHealth EquitySMSNon-ProfitDigital Health

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 — 4/100 · 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 4 / 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/caremessage: 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

Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

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: caremessage
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/caremessage.png
name: Caremessage
description: CareMessage is a healthcare technology non-profit that operates one of the largest patient engagement platforms
  serving low-income and underserved populations across the United States. Since 2013 the platform has reached more than 20
  million patients and is used by roughly 1 in 7 federally qualified health centers plus 200+ free clinics. Its products include
  1:1 direct messaging, appointment lifecycle messaging, population outreach, health coaching, closed-loop referrals, Social
  Determinants of Health (SDOH) workflows, and Wellness Copilot, an AI-backed diabetes-management automation. CareMessage
  does not currently publish a public developer API, SDK, or API reference; access to the platform is through its web application
  and a login-gated help center. This profile was surfaced as a Y Combinator portfolio company and enriched from CareMessage's
  public web surface.
url: https://raw.githubusercontent.com/api-evangelist/caremessage/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Healthcare
- Patient Engagement
- Messaging
- Communications
- Health Equity
- SMS
- Non-Profit
- Digital Health
apis: []
common:
- type: Website
  url: https://www.caremessage.org/
  name: CareMessage Website
- type: HelpCenter
  url: https://help.caremessage.org/en/
  name: CareMessage Help Center
- type: Support
  url: https://www.caremessage.org/contact-us/
  name: Contact / Request a Demo
- type: Blog
  url: https://www.caremessage.org/blog/
  name: CareMessage Blog
- type: Login
  url: https://app.caremessage.org/
  name: Platform Login
- type: PrivacyPolicy
  url: https://www.caremessage.org/privacy-policy/
  name: Privacy Policy
- type: TermsOfService
  url: https://www.caremessage.org/terms-of-use/
  name: Terms of Use
- type: WellKnown
  url: well-known/caremessage-well-known.yml
  name: Well-Known Discovery Index
- type: DomainSecurity
  url: security/caremessage-domain-security.yml
  name: Domain Security Posture
- type: LLMsTxt
  url: llms/caremessage-llms.txt
  name: llms.txt
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