Element5 website screenshot

Element5

Element5 is a post-acute healthcare workflow automation platform that uses coordinated AI agents (Neos) to automate revenue cycle management (RCM) and back-office operations for home health, hospice, and palliative care providers. Its platform automates eligibility and benefit verification, prior authorization submission, claims processing, denials management, remittance and collections, and audit/compliance workflows, escalating only exceptions to human agents. Element5 exposes a public workflow API (Element5 API v2.2.0) protected by API keys that lets clients submit authorization and eligibility requests, process X12 270/271 eligibility transactions, upload and fetch file objects, and monitor long-running tasks via polling or webhook callbacks. The company is backed by Insight Partners and serves the post-acute care sector.

Element5 publishes 3 APIs on the APIs.io network: Authorization API, Eligibility API, and Object Store API. Tagged areas include Company, Healthcare, Revenue Cycle Management, Post-Acute Care, and Workflow Automation.

The Element5 catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Element5’s developer surface includes authentication, sandbox, documentation, API reference, support, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
49.1/100 developing ▬ flat Agent 71/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
3 APIs 1 MCP Servers
CompanyHealthcareRevenue Cycle ManagementPost-Acute CareWorkflow AutomationEligibility VerificationPrior AuthorizationClaims ProcessingWebhooksArtificial Intelligence

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 49.1/100 · developing
Contract Quality 18.3 / 25
Developer Ergonomics 12.2 / 20
Commercial Clarity 6.3 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 71/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 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/element5: 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 3

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

Element5 Authorization API

Authorization related APIs

Element5 Eligibility API

Eligibility related APIs

Element5 Object Store API

Object Store related APIs

Arazzo Workflows 3

Multi-step API workflows described with the Arazzo specification.

_Index

ARAZZO

Element5 — Upload document and submit authorization

Upload a supporting file object, submit a prior-authorization request, then poll status.

ARAZZO

Element5 — Verify eligibility and await result

Submit an eligibility request and poll until the task succeeds or fails.

ARAZZO

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

element5-mcp.yml

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Element5 Webhooks

ASYNCAPI

Security Posture 2

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

Element5 Authentication

apiKey · 1 scheme

SECURITY

Element5 Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Element5 Agentic Access

8 operations · 4 acting

8 operations · 4 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 DeveloperPortal
DeveloperPortal
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 AgentSkill
AgentSkill
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 Webhooks
Webhooks
 DataModel
DataModel
 Arazzo
Arazzo
 Arazzo
Arazzo

Scroll for all 8

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Compliance
Compliance

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: element5
name: Element5
description: Element5 is a post-acute healthcare workflow automation platform that uses coordinated AI agents (Neos) to automate
  revenue cycle management (RCM) and back-office operations for home health, hospice, and palliative care providers. Its platform
  automates eligibility and benefit verification, prior authorization submission, claims processing, denials management, remittance
  and collections, and audit/compliance workflows, escalating only exceptions to human agents. Element5 exposes a public workflow
  API (Element5 API v2.2.0) protected by API keys that lets clients submit authorization and eligibility requests, process
  X12 270/271 eligibility transactions, upload and fetch file objects, and monitor long-running tasks via polling or webhook
  callbacks. The company is backed by Insight Partners and serves the post-acute care sector.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/658c60c4ff902effa2174f77/668c43e2bfb9956a2995b419_e5-logo-gradient.png
url: https://raw.githubusercontent.com/api-evangelist/element5/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Healthcare
- Revenue Cycle Management
- Post-Acute Care
- Workflow Automation
- Eligibility Verification
- Prior Authorization
- Claims Processing
- Webhooks
- Artificial Intelligence
apis:
- aid: element5:element5-authorization-api
  name: Element5 Authorization API
  description: Authorization related APIs
  humanURL: https://api-doc.e5.ai/
  baseURL: https://api.e5.ai
  tags:
  - Authorization
  properties:
  - type: OpenAPI
    url: openapi/element5-authorization-api-openapi.yml
  - type: Documentation
    url: https://api-doc.e5.ai/
  - type: APIReference
    url: https://api-doc.e5.ai/
- aid: element5:element5-eligibility-api
  name: Element5 Eligibility API
  description: Eligibility related APIs
  humanURL: https://api-doc.e5.ai/
  baseURL: https://api.e5.ai
  tags:
  - Eligibility
  properties:
  - type: OpenAPI
    url: openapi/element5-eligibility-api-openapi.yml
  - type: Documentation
    url: https://api-doc.e5.ai/
  - type: APIReference
    url: https://api-doc.e5.ai/
- aid: element5:element5-object-store-api
  name: Element5 Object Store API
  description: Object Store related APIs
  humanURL: https://api-doc.e5.ai/
  baseURL: https://api.e5.ai
  tags:
  - Object Store
  properties:
  - type: OpenAPI
    url: openapi/element5-object-store-api-openapi.yml
  - type: Documentation
    url: https://api-doc.e5.ai/
  - type: APIReference
    url: https://api-doc.e5.ai/
common:
- type: AgenticAccess
  url: agentic-access/element5-agentic-access.yml
- type: DomainSecurity
  url: security/element5-domain-security.yml
- type: Authentication
  url: authentication/element5-authentication.yml
- type: Conventions
  url: conventions/element5-conventions.yml
- type: ErrorCatalog
  url: errors/element5-problem-types.yml
- type: Lifecycle
  url: lifecycle/element5-lifecycle.yml
- type: Conformance
  url: conformance/element5-conformance.yml
- type: Webhooks
  url: asyncapi/element5-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: MCPServer
  url: mcp/element5-mcp.yml
- type: LLMsTxt
  url: llms/element5-llms.txt
- type: Overlay
  url: overlays/element5-openapi-overlay.yaml
- type: Sandbox
  url: sandbox/element5-sandbox.yml
- type: DataModel
  url: data-model/element5-data-model.yml
- type: Arazzo
  name: Verify eligibility and await result
  url: arazzo/element5-verify-eligibility.yml
- type: Arazzo
  name: Upload document and submit authorization
  url: arazzo/element5-submit-authorization.yml
- type: Website
  url: https://www.e5.ai/
- type: DeveloperPortal
  url: https://api-doc.e5.ai/
- type: Documentation
  url: https://api-doc.e5.ai/
- type: APIReference
  url: https://api-doc.e5.ai/
- type: Login
  url: https://app.e5.ai/
- type: PrivacyPolicy
  url: https://www.e5.ai/privacy-policy
- type: Support
  url: mailto:apisupport@e5.ai
- type: Compliance
  url: https://www.e5.ai/security
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