Convex website screenshot

Convex

Convex Group Limited is an international specialty insurer and reinsurer founded in 2019 by Stephen Catlin and Paul Brand, headquartered in London with operations in Bermuda, Luxembourg, Guernsey and the United States. Convex writes complex commercial and specialty risk across property, casualty, marine, energy, aviation, cyber, political risk and credit, crisis management, accident and health, and equine/livestock/aquaculture, and writes property, casualty and specialty treaty reinsurance through Convex Re Limited in Bermuda and London. Convex Insurance UK Limited is authorised by the Prudential Regulation Authority and regulated by the FCA and PRA; it is a London company-market carrier rather than a Lloyd's syndicate, and it reported roughly $5.2bn of gross written premium in 2024. Convex operates a named Digital Underwriting function that publicly describes building "a suite of insurance specific APIs" for automated quote and bind on high-volume, low-complexity specialty books, delivered either through a Convex-hosted broker portal or by connecting Convex products into a broker's or client's existing portal via API. That API programme is real but entirely partner-gated: as of 2026-07-25 Convex publishes no public developer portal, no API reference, no OpenAPI or other machine- readable definition, no sandbox and no self-serve signup. The api.convexin.com host is live but answers every anonymous request with HTTP 401 Unauthorized, the digital.convexin.com broker application is an authenticated Unqork-hosted portal, and the Convex Quick Quote event-insurance surface is behind a broker account registration form. Integration is arranged through the Business Development team, not through documentation. No ACORD, AL3, NGDS or IVANS reference appears anywhere on Convex's public web presence.

Convex publishes 1 API on the APIs.io network. Tagged areas include Insurance, United Kingdom, Property and Casualty, Specialty Insurance, and Reinsurance.

Convex’s developer surface includes documentation, engineering blog, legal docs, and 15 more developer resources.

19.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs
InsuranceUnited KingdomProperty and CasualtySpecialty InsuranceReinsuranceUnderwritingClaimsLondon MarketCarrierDigital Underwriting

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 19.5/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 0/100 · 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 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/convex-insurance: 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.

Convex Digital Underwriting API

The partner-gated REST API surface behind Convex Digital Underwriting. Convex publicly describes building "a suite of insurance specific APIs" that let broker and client platfor...

Security Posture 1

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

Convex Insurance Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 7

The organization behind the API

Scroll for all 7

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: convex-insurance
url: https://raw.githubusercontent.com/api-evangelist/convex-insurance/refs/heads/main/apis.yml
name: Convex
kind: company
description: 'Convex Group Limited is an international specialty insurer and reinsurer founded in 2019 by Stephen Catlin and
  Paul Brand, headquartered in London with operations in Bermuda, Luxembourg, Guernsey and the United States. Convex writes
  complex commercial and specialty risk across property, casualty, marine, energy, aviation, cyber, political risk and credit,
  crisis management, accident and health, and equine/livestock/aquaculture, and writes property, casualty and specialty treaty
  reinsurance through Convex Re Limited in Bermuda and London. Convex Insurance UK Limited is authorised by the Prudential
  Regulation Authority and regulated by the FCA and PRA; it is a London company-market carrier rather than a Lloyd''s syndicate,
  and it reported roughly $5.2bn of gross written premium in 2024. Convex operates a named Digital Underwriting function that
  publicly describes building "a suite of insurance specific APIs" for automated quote and bind on high-volume, low-complexity
  specialty books, delivered either through a Convex-hosted broker portal or by connecting Convex products into a broker''s
  or client''s existing portal via API. That API programme is real but entirely partner-gated: as of 2026-07-25 Convex publishes
  no public developer portal, no API reference, no OpenAPI or other machine- readable definition, no sandbox and no self-serve
  signup. The api.convexin.com host is live but answers every anonymous request with HTTP 401 Unauthorized, the digital.convexin.com
  broker application is an authenticated Unqork-hosted portal, and the Convex Quick Quote event-insurance surface is behind
  a broker account registration form. Integration is arranged through the Business Development team, not through documentation.
  No ACORD, AL3, NGDS or IVANS reference appears anywhere on Convex''s public web presence.'
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Insurance
- United Kingdom
- Property and Casualty
- Specialty Insurance
- Reinsurance
- Underwriting
- Claims
- London Market
- Carrier
- Digital Underwriting
created: '2026-07-25'
modified: '2026-07-25'
specificationVersion: '0.19'
apis:
- name: Convex Digital Underwriting API
  description: The partner-gated REST API surface behind Convex Digital Underwriting. Convex publicly describes building "a
    suite of insurance specific APIs" that let broker and client platforms connect to Convex products for automated quote
    and bind on high-volume, low-complexity specialty business, either through a Convex-hosted portal or by wiring Convex
    products into an existing broker or client portal via API. The api.convexin.com host is confirmed live but answers every
    anonymous request with an application/json HTTP 401 {"message":"Unauthorized"} body — including every OpenAPI/Swagger,
    /graphql and /.well-known discovery path — with no WWW-Authenticate challenge, so the auth scheme, paths, versioning and
    payload shapes are not observable from outside. There is no developer portal, no API reference, no machine-readable definition,
    no sandbox and no self-serve signup; access is arranged commercially through the Convex Digital Trading / Business Development
    team.
  humanURL: https://convexin.com/underwriting/digital-underwriting/
  baseURL: https://api.convexin.com
  tags:
  - Insurance
  - Underwriting
  - Quote
  - Bind
  - Specialty Insurance
  - Digital Underwriting
  properties:
  - type: Documentation
    url: https://convexin.com/underwriting/digital-underwriting/
  - type: Documentation
    url: https://convexin.com/wp-content/uploads/2025/10/Convex-Digital-Underwriting-One-Pager-1025.pdf
  - type: Portal
    url: https://digital.convexin.com/
  - type: Conformance
    url: conformance/convex-insurance-conformance.yml
common:
- type: DomainSecurity
  url: security/convex-insurance-domain-security.yml
- type: Conformance
  url: conformance/convex-insurance-conformance.yml
- type: LLMsTxt
  url: llms/convex-insurance-llms.txt
- type: Website
  url: https://convexin.com/
- type: Documentation
  url: https://convexin.com/underwriting/digital-underwriting/
- type: Documentation
  url: https://convexin.com/underwriting/quick-quote/
- type: Documentation
  url: https://convexin.com/wp-content/uploads/2025/10/Convex-Digital-Underwriting-One-Pager-1025.pdf
- type: Website
  url: https://us.convexin.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/convex-insurance
- type: Contact
  url: https://convexin.com/contact-us/
- type: Blog
  url: https://convexin.com/articles/
- type: BlogRSS
  url: https://convexin.com/feed/
- type: Podcast
  url: https://convexin.com/podcasts/
- type: TermsOfService
  url: https://convexin.com/terms-and-conditions/
- type: PrivacyPolicy
  url: https://convexin.com/privacy-policy/
- type: Legal
  url: https://convexin.com/legal/
- type: InvestorRelations
  url: https://convexin.com/investor-relations/
- type: Careers
  url: https://convexin.com/life-at-convex/careers/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com