Insurf website screenshot

Insurf

Insurf, Inc. is a Y Combinator-backed healthcare company building an end-to-end prior-authorization and denial-appeals platform. Its flagship product, Inveto, is a denial-management workbench that turns denial letters, clinical evidence, and payer policy snapshots into source-cited prior-authorization templates and appeal packets for staff review and physician attestation before staff-controlled filing and outcome tracking. A second product, Surely, is a deterministic twelve-month health-plan cost engine for true-cost plan selection (coming soon). Insurf operates in private pilot: production PHI remains disabled behind customer BAAs, vendor coverage, technical gates, and founder go-live approval, and the company publishes public trust surfaces — security, privacy, terms, status, changelog, methodology, and documentation — for customer and diligence review.

Insurf is profiled on the APIs.io network. Tagged areas include Company, Healthcare, Health Insurance, Prior Authorization, and Denial Appeals.

Insurf’s developer surface includes documentation, changelog, support, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub
27.9/100 emerging ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyHealthcareHealth InsurancePrior AuthorizationDenial AppealsRevenue Cycle ManagementInsuranceArtificial IntelligenceY Combinator

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 27.9/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.6 / 20
Commercial Clarity 8.4 / 20
Operational Transparency 5.5 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · 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 3 / 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/insurf: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 3

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

Insurf Domain Security

TLSv1.3 · HSTS

SECURITY

Insurf Vulnerability Disclosure

security.txt · contact published

SECURITY

Insurf Trust Center

trust center published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login
Login
 Demo
Demo

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle

Access & Security 5

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 Security
Security
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Operate 4

Status, limits, changes, and where to get help

StatusPage
StatusPage
 ChangeLog
ChangeLog
 Support
Support
 ChangeLog
ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: insurf
name: Insurf
description: 'Insurf, Inc. is a Y Combinator-backed healthcare company building an end-to-end prior-authorization and denial-appeals
  platform. Its flagship product, Inveto, is a denial-management workbench that turns denial letters, clinical evidence, and
  payer policy snapshots into source-cited prior-authorization templates and appeal packets for staff review and physician
  attestation before staff-controlled filing and outcome tracking. A second product, Surely, is a deterministic twelve-month
  health-plan cost engine for true-cost plan selection (coming soon). Insurf operates in private pilot: production PHI remains
  disabled behind customer BAAs, vendor coverage, technical gates, and founder go-live approval, and the company publishes
  public trust surfaces — security, privacy, terms, status, changelog, methodology, and documentation — for customer and diligence
  review.'
url: https://raw.githubusercontent.com/api-evangelist/insurf/refs/heads/main/apis.yml
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://www.insurf.io/denial-automation-og
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: '2026-07-19'
tags:
- Company
- Healthcare
- Health Insurance
- Prior Authorization
- Denial Appeals
- Revenue Cycle Management
- Insurance
- Artificial Intelligence
- Y Combinator
apis: []
common:
- type: TrustCenter
  url: security/insurf-trust-center.yml
- type: Website
  url: https://www.insurf.io
- type: Documentation
  url: https://www.insurf.io/docs
- type: Security
  url: https://www.insurf.io/security
- type: StatusPage
  url: https://www.insurf.io/status
- type: ChangeLog
  url: https://www.insurf.io/changelog
- type: PrivacyPolicy
  url: https://www.insurf.io/privacy
- type: TermsOfService
  url: https://www.insurf.io/terms
- type: Login
  url: https://www.insurf.io/login
- type: Support
  url: mailto:pilot@insurf.io
- type: Demo
  url: https://www.insurf.io/demo
- type: SecurityTxt
  url: well-known/insurf-security.txt
- type: WellKnown
  url: well-known/insurf-well-known.yml
- type: VulnerabilityDisclosure
  url: security/insurf-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/insurf-domain-security.yml
- type: Lifecycle
  url: lifecycle/insurf-lifecycle.yml
- type: ChangeLog
  url: changelog/insurf-changelog.yml
  name: Insurf changelog artifact
- type: LLMsTxt
  url: llms/insurf-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