OneShield

OneShield Software provides core insurance platform solutions for property and casualty (P&C) insurers, managing general agents (MGAs), program administrators, and insurance startups. Its two platforms — OneShield Enterprise, a comprehensive cloud/SaaS core suite, and OneShield Market Solutions (OMS), a preconfigured SaaS offering — cover policy administration, billing, claims, rating, product configuration, relationship management, business intelligence, and analytics across more than 90 lines of business. OneShield exposes RESTful and SOAP integration services (XML/JSON) through its Services Designer and OMS API integration suite, but publishes no public developer portal or OpenAPI; API access is provisioned to customers and implementation partners. Headquartered in Marlborough, Massachusetts with offices in India, OneShield is backed by investors including Bain Capital and Earlybird Venture Capital.

OneShield is profiled on the APIs.io network. Tagged areas include Company, Insurance, Insurtech, Property and Casualty, and Policy Administration.

OneShield’s developer surface includes engineering blog, support, signup flow, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

10.1/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

0 APIs

Company Insurance Insurtech Property and Casualty Policy Administration Billing Claims Core Systems Software-as-a-Service MGA

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 10.1/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 4.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.3 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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/oneshield: 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

SignUp

SignUp

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

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 3

The organization behind the API

Website

Website

About

About

Blog

Blog

Source (apis.yml)

aid: oneshield
name: OneShield
description: OneShield Software provides core insurance platform solutions for property and casualty (P&C) insurers, managing
  general agents (MGAs), program administrators, and insurance startups. Its two platforms — OneShield Enterprise, a comprehensive
  cloud/SaaS core suite, and OneShield Market Solutions (OMS), a preconfigured SaaS offering — cover policy administration,
  billing, claims, rating, product configuration, relationship management, business intelligence, and analytics across more
  than 90 lines of business. OneShield exposes RESTful and SOAP integration services (XML/JSON) through its Services Designer
  and OMS API integration suite, but publishes no public developer portal or OpenAPI; API access is provisioned to customers
  and implementation partners. Headquartered in Marlborough, Massachusetts with offices in India, OneShield is backed by investors
  including Bain Capital and Earlybird Venture Capital.
url: https://raw.githubusercontent.com/api-evangelist/oneshield/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- earlybird
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://oneshield.com/wp-content/uploads/2022/10/OS_logo_new.svg
tags:
- Company
- Insurance
- Insurtech
- Property and Casualty
- Policy Administration
- Billing
- Claims
- Core Systems
- Software-as-a-Service
- MGA
tags_raw:
- Company
- Insurance
- InsurTech
- Property and Casualty
- Policy Administration
- Billing
- Claims
- Core Systems
- SaaS
- MGA
apis: []
common:
- type: DomainSecurity
  url: security/oneshield-domain-security.yml
- type: LLMsTxt
  url: llms/oneshield-llms.txt
- type: Website
  url: https://oneshield.com/
- type: About
  url: https://oneshield.com/about/
- type: Blog
  url: https://oneshield.com/knowledge-hub/
- type: Support
  url: https://oneshield.com/services/support/
- type: PrivacyPolicy
  url: https://oneshield.com/privacy-policy/
- type: SignUp
  url: https://oneshield.com/os-demo/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 2
  pass: local-v1

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