Arbital Health website screenshot

Arbital Health

Arbital Health is a healthcare technology and actuarial-services company building the neutral third-party infrastructure for adjudicating outcomes-based (value-based care) contracts between payers, providers, employers, risk-bearing entities and point-solution vendors. Its cloud platform centralizes risk contracts, ingests and validates claims and eligibility data, runs actuarial calculations (IBNR, MLR, benchmarks, attribution), predicts and monitors contract performance, and adjudicates settlement between the parties. Product lines include the Adjudication Platform, ATLAS, Merlin AI, and Arbital Flex — a self-serve actuarial AI tool for payors and providers — alongside a traditional actuarial consulting practice built on the acquired Santa Barbara Actuaries team. The company launched in 2024, raised a $10M Series A led by Transformation Capital, and holds SOC 2 Type 2 and HITRUST i1 certification.

Arbital Health publishes 1 API on the APIs.io network. Tagged areas include Company, Healthcare, Health Insurance, Value-Based Care, and Actuarial.

Arbital Health’s developer surface includes engineering blog, authentication, and 16 more developer resources.

29.9/100 thin ▬ flat Agent 9/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs
CompanyHealthcareHealth InsuranceValue-Based CareActuarialClaimsPayersProvidersAnalyticsArtificial Intelligence

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 29.9/100 · thin
Contract Quality 0.0 / 21
Developer Ergonomics 2.2 / 17
Commercial Clarity 6.7 / 17
Operational Transparency 1.2 / 11
Governance 1.3 / 10
Discoverability 7.4 / 9
Regulatory Posture 11.1 / 15
Agent readiness — 9/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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
Regulatory Posture applies to this provider. Its tags matched the Insurance 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/arbital-health: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Arbital Health Platform API

The JSON API behind the Arbital Health adjudication platform at platform.arbitalhealth.com. Observed live and returning JSON, but every resource path answers 401 {"error":"Unaut...

Security Posture 4

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

Arbital Health Authentication

openIdConnect/oauth2 · 1 scheme

SECURITY

Arbital Health Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Arbital Health Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Arbital Health Trust Center

SOC 2 Type 2, HITRUST i1

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Arbital Health Scopes

3 scopes · authorizationCode

3 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Access & Security 7

Authentication, authorization, and security posture

Scroll for all 7

Commercial 1

Pricing, plans, and the legal terms of use

Company 6

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: arbital-health
name: Arbital Health
description: Arbital Health is a healthcare technology and actuarial-services company building the neutral third-party infrastructure
  for adjudicating outcomes-based (value-based care) contracts between payers, providers, employers, risk-bearing entities
  and point-solution vendors. Its cloud platform centralizes risk contracts, ingests and validates claims and eligibility
  data, runs actuarial calculations (IBNR, MLR, benchmarks, attribution), predicts and monitors contract performance, and
  adjudicates settlement between the parties. Product lines include the Adjudication Platform, ATLAS, Merlin AI, and Arbital
  Flex — a self-serve actuarial AI tool for payors and providers — alongside a traditional actuarial consulting practice built
  on the acquired Santa Barbara Actuaries team. The company launched in 2024, raised a $10M Series A led by Transformation
  Capital, and holds SOC 2 Type 2 and HITRUST i1 certification.
image: https://44728686.fs1.hubspotusercontent-na1.net/hubfs/44728686/Arbital_Logo_Full_Color_KO_rgb_022124.png
url: https://raw.githubusercontent.com/api-evangelist/arbital-health/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Healthcare
- Health Insurance
- Value-Based Care
- Actuarial
- Claims
- Payers
- Providers
- Analytics
- Artificial Intelligence
apis:
- aid: arbital-health:platform-api
  name: Arbital Health Platform API
  description: The JSON API behind the Arbital Health adjudication platform at platform.arbitalhealth.com. Observed live and
    returning JSON, but every resource path answers 401 {"error":"Unauthorized"} to an anonymous caller and no public reference,
    OpenAPI or developer portal is published. Only /api/health is anonymously readable. Access is customer-only, brokered
    through the platform's PropelAuth-backed OpenID Connect tenant at auth.arbitalhealth.com.
  humanURL: https://arbitalhealth.com/adjudication-platform
  baseURL: https://platform.arbitalhealth.com/api
  tags:
  - Healthcare
  - Value-Based Care
  - Claims
  - Contracts
  x-access: customer-only
  x-evidence:
    fetched: '2026-08-06'
    probes:
    - url: https://platform.arbitalhealth.com/api/health
      status: 200
      note: '{"status":"healthy","timestamp":"..."} — the only anonymous 200'
    - url: https://platform.arbitalhealth.com/api/v1
      status: 401
      note: '{"error":"Unauthorized"}'
    - url: https://platform.arbitalhealth.com/api/openapi.json
      status: 401
      note: '{"error":"Unauthorized"} — no anonymous spec'
  properties:
  - type: Login
    url: https://platform.arbitalhealth.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://arbitalhealth.com
- type: Blog
  url: https://arbitalhealth.com/blog
- type: BlogRSS
  url: https://arbitalhealth.com/blog/rss.xml
- type: PrivacyPolicy
  url: https://arbitalhealth.com/privacy-policy
- type: Login
  url: https://platform.arbitalhealth.com/
- type: Careers
  url: https://arbitalhealth.com/careers
- type: LinkedIn
  url: https://www.linkedin.com/company/arbital-health/
- type: Twitter
  url: https://twitter.com/arbitalhealth
- type: TrustCenter
  url: security/arbital-health-trust-center.yml
- type: Compliance
  url: https://security.arbitalhealth.com/
- type: Security
  url: https://security.arbitalhealth.com/
- type: VulnerabilityDisclosure
  url: security/arbital-health-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/arbital-health-domain-security.yml
- type: WellKnown
  url: well-known/arbital-health-well-known.yml
- type: Authentication
  url: authentication/arbital-health-authentication.yml
- type: OAuthScopes
  url: scopes/arbital-health-scopes.yml
- type: Conformance
  url: conformance/arbital-health-conformance.yml
- type: LLMsTxt
  url: llms/arbital-health-llms.txt
x-enrichment:
  date: '2026-08-06'
  status: minimal
  artifacts_added: 9
  pass: local-v1
x-coverage:
  state: gated
  reason: customer-only-docs
  detail: Arbital Health runs a real JSON API at platform.arbitalhealth.com/api — /api/health answers 200 — but every resource
    path, including /api/openapi.json, returns 401 {"error":"Unauthorized"} to an anonymous caller, and no developer portal,
    API reference or spec exists anywhere on the marketing site (arbitalhealth.com is a 13-page HubSpot CMS site with no /docs,
    /developers or /api route).
  evidence:
  - url: https://platform.arbitalhealth.com/api/health
    status: 200
  - url: https://platform.arbitalhealth.com/api/openapi.json
    status: 401
  - url: https://arbitalhealth.com/openapi.json
    status: 404
  - url: https://arbitalhealth.com/developers
    status: 404
  - url: https://auth.arbitalhealth.com/.well-known/openid-configuration
    status: 200
  checked: '2026-08-06'