Annexus Health

Annexus Health is a privately held healthcare technology company headquartered in Cranberry Township, Pennsylvania that builds software to reduce the administrative burden of patient financial navigation across the patient access journey. Its flagship platform, AssistPoint, is an enterprise workflow application used by financial counselors and patient advocates at provider organizations to proactively identify, enroll in, and manage copay assistance, charitable foundation grants, and manufacturer patient support programs. A companion integration layer, AP Connect, creates a two-way secure information exchange between life science and foundation patient support programs and AssistPoint, digitally integrating enrollment, e-signature, and real-time award balance updates. Annexus Health also publishes Adparo, a patient financial navigation service offering. The company reports AssistPoint is licensed by 165+ healthcare organizations across 4,200+ sites of care and has processed more than $6 billion in patient financial assistance awards since 2018. Its integration and developer surface is partner-only: AP Connect is delivered through direct life science and foundation partnerships rather than a public developer program, and no public API reference or machine-readable specification is published. The publicly reachable machine-readable surface is the AssistPoint identity tier — an OpenID Connect authorization server on the company's own custom domain — plus a SafeBase-hosted trust center carrying its HITRUST r2 certification.

Annexus Health publishes 1 API on the APIs.io network. Tagged areas include Company, Healthcare, Health Technology, Patient Access, and Financial Assistance.

Annexus Health’s developer surface includes documentation, support, engineering blog, signup flow, YouTube channel, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

27.9/100 thin ▬ flat Agent 15/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessOpen

1 APIs

Company Healthcare Health Technology Patient AccessFinancial AssistanceOncology Revenue CycleCopay AssistanceIdentity OpenID Connect HITRUST

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 27.9/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 4.9 / 17

Access Clarity 6.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 5.8 / 9

Regulatory Posture 8.1 / 15

Agent readiness — 15/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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/annexus-health: 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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

AssistPoint Identity (OpenID Connect)

The production OpenID Connect / OAuth 2.0 authorization server for the AssistPoint platform, served from Annexus Health's own custom domain. Its discovery document is published ...

Security Posture 3

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

Annexus Health Authentication

0 schemes

SECURITY

Annexus Health Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Annexus Health Trust Center

HITRUST Risk-based, 2-year (r2) Certification

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Annexus Health Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Lifecycle

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

Compliance

Compliance

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 2

Status, limits, changes, and where to get help

Support

Support

HelpCenter

HelpCenter

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 6

The organization behind the API

Website

About

Blog

BlogRSS

Twitter

LinkedIn

Other 1

Properties that don't map to a standard resource type

CookiePolicy

CookiePolicy

Source (apis.yml)

aid: annexus-health
name: Annexus Health
description: 'Annexus Health is a privately held healthcare technology company headquartered in Cranberry Township, Pennsylvania
  that builds software to reduce the administrative burden of patient financial navigation across the patient access journey.
  Its flagship platform, AssistPoint, is an enterprise workflow application used by financial counselors and patient advocates
  at provider organizations to proactively identify, enroll in, and manage copay assistance, charitable foundation grants,
  and manufacturer patient support programs. A companion integration layer, AP Connect, creates a two-way secure information
  exchange between life science and foundation patient support programs and AssistPoint, digitally integrating enrollment,
  e-signature, and real-time award balance updates. Annexus Health also publishes Adparo, a patient financial navigation service
  offering. The company reports AssistPoint is licensed by 165+ healthcare organizations across 4,200+ sites of care and has
  processed more than $6 billion in patient financial assistance awards since 2018. Its integration and developer surface
  is partner-only: AP Connect is delivered through direct life science and foundation partnerships rather than a public developer
  program, and no public API reference or machine-readable specification is published. The publicly reachable machine-readable
  surface is the AssistPoint identity tier — an OpenID Connect authorization server on the company''s own custom domain —
  plus a SafeBase-hosted trust center carrying its HITRUST r2 certification.'
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: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  - scopes
  - security
  generated: '2026-09-02'
  method: derived
image: https://www.annexushealth.com/wp-content/uploads/2019/06/AnnexusHealth_logo_NAV-1.png
url: https://raw.githubusercontent.com/api-evangelist/annexus-health/refs/heads/main/apis.yml
x-api-posture: partner-gated
x-api-posture-basis: observed
x-api-posture-note: 'Its integration and developer surface is partner-only: AP Connect is delivered through direct life science
  and foundation partnerships rather than a public developer program, and no public API referen'
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Healthcare
- Health Technology
- Patient Access
- Financial Assistance
- Oncology
- Revenue Cycle
- Copay Assistance
- Identity
- OpenID Connect
- HITRUST
apis:
- aid: annexus-health:assistpoint-identity
  name: AssistPoint Identity (OpenID Connect)
  description: The production OpenID Connect / OAuth 2.0 authorization server for the AssistPoint platform, served from Annexus
    Health's own custom domain. Its discovery document is published anonymously at /.well-known/openid-configuration and advertises
    the authorization, token, userinfo, device-code, JWKS, dynamic client registration, revocation, and backchannel authentication
    endpoints, fourteen OIDC scopes, PKCE (S256), DPoP, private_key_jwt client authentication, and the client_credentials,
    authorization_code, refresh_token, device_code, token-exchange, and jwt-bearer grants. This is the identity tier only
    — the AssistPoint business API behind it is partner-gated and its reference is not public.
  humanURL: https://www.annexushealth.com/assistpoint/
  baseURL: https://login.live.annexushealth.com
  tags:
  - Identity
  - Authentication
  - OpenID Connect
  tags_raw:
  - Identity
  - Authentication
  - OpenID Connect
  - OAuth 2.0
  properties:
  - type: OpenIDConnectDiscovery
    url: https://login.live.annexushealth.com/.well-known/openid-configuration
  - type: WellKnown
    url: well-known/annexus-health-well-known.yml
  - type: Authentication
    url: authentication/annexus-health-authentication.yml
  - type: OAuthScopes
    url: scopes/annexus-health-scopes.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.annexushealth.com/
- type: About
  url: https://www.annexushealth.com/about/
- type: Documentation
  url: https://www.annexushealth.com/assistpoint/
- type: Support
  url: https://www.annexushealth.com/customer-support/
- type: HelpCenter
  url: https://www.annexushealth.com/provider-faqs/
- type: Blog
  url: https://www.annexushealth.com/insights/
- type: BlogRSS
  url: https://www.annexushealth.com/feed/
- type: PrivacyPolicy
  url: https://www.annexushealth.com/privacy-policy/
- type: CookiePolicy
  url: https://www.annexushealth.com/cookie-policy/
- type: SignUp
  url: https://www.annexushealth.com/contact/
- type: Login
  url: https://login.live.annexushealth.com/
- type: TrustCenter
  url: https://trust.annexushealth.com/
- type: Compliance
  url: security/annexus-health-trust-center.yml
- type: DomainSecurity
  url: security/annexus-health-domain-security.yml
- type: Conformance
  url: conformance/annexus-health-conformance.yml
- type: Lifecycle
  url: lifecycle/annexus-health-lifecycle.yml
- type: Packages
  url: packages/annexus-health-packages.yml
- type: LLMsTxt
  url: llms/annexus-health-llms.txt
- type: Twitter
  url: https://twitter.com/annexushealth
- type: LinkedIn
  url: https://www.linkedin.com/company/annexushealth/
- type: YouTube
  url: https://www.youtube.com/channel/UCLKjak9CEP1Z9DjIjV2op9g
x-enrichment:
  date: '2026-08-06'
  status: enriched
  artifacts_added: 12
  pass: local-v1
x-coverage:
  state: covered
  reason: covered
  detail: 'The AssistPoint product API (AP Connect) is partner-only and has no public reference, but contract discovery on
    the identity tier hit: login.live.annexushealth.com serves a full anonymous OpenID Connect discovery document plus JWKS,
    and trust.annexushealth.com is a public SafeBase trust center naming HITRUST r2.'
  evidence:
  - url: https://login.live.annexushealth.com/.well-known/openid-configuration
    status: 200
  - url: https://trust.annexushealth.com/
    status: 200
  - url: https://www.annexushealth.com/developers
    status: 404
  checked: '2026-08-06'

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