Coalition is a San Francisco–headquartered cyber insurance and active risk management provider founded in 2017 by Joshua Motta (CEO) and John Hering. Coalition pairs commercial insurance lines — Cyber, Technology Errors & Omissions, Executive Risks (D&O, EPL, Fiduciary, Crime), Miscellaneous Professional Liability, and AI coverage — with a continuous attack-surface monitoring and incident-response platform (Coalition Control, Wirespeed ADR, Coalition Incident Response, Security Awareness Training). The company's underwriting engine is exposed to brokers and distribution partners through the Coalition Active Insurance API, a RESTful surface that supports rate, quote, bind, document generation, renewals, and webhook events across the United States and Canada, with executive risks APIs and additional product lines added over time. Coalition also publishes a public Exploit Scoring System (ESS) API at ess-api.coalitioninc.com that exposes CVE detail, ESS/EPSS/CVSS scoring, exploit references (ExploitDB, Metasploit), GitHub repository signals, and Twitter mention timelines for over 200,000 vulnerabilities. Coalition is backed by Allianz X, Valor Equity Partners, Ribbit Capital, Mitsui Sumitomo, Kinetic Partners and other strategic insurers (Allianz, Arch, Ascot, Zurich, Swiss Re, Lloyd's syndicates); it raised a $250M Series F in 2022 at a $5B valuation. The Active Insurance API is partner-gated (no public OpenAPI), but the ESS API is fully public with OpenAPI 3.1, an interactive docs UI, and ReDoc.
Coalition publishes 2 API contracts indexed on the APIs.io network, including Cve API, and 1 more. Tagged areas include Cyber Insurance, Insurance, Insurtech, Risk Management, and Cybersecurity.
The Coalition catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Coalition’s developer surface includes engineering blog, YouTube channel, and 27 more developer resources.
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.
Create-or-Update Ergonomics does not apply to this provider. The published contracts declare
no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's
denominator entirely — not scored zero. A reference or data API is not deficient for being unable to
upsert.
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/.
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Agent readiness — checks not met, largest first (exact, from this profile):
MCP Server+12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth+10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Delegated User Identity+6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface+6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
6 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Access Clarityscores 21.1 — up to +15.8 composite points
The Kin Score Market layer reads a provider inside its market:
its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted:
not part of the Kin Score or agent readiness.
Registered MCP server and declares compatibility are report only — not weighted.
Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
Partner-gated REST API that brokers and distribution partners use to rate, quote, bind, generate documents (quote PDF, Coalition Risk Assessment, signature bundle, specimen poli...
Not yet checked against Coalition's own pricing page. Compiled by API Evangelist on 2026-05-25; confirm before you rely on a figure. A free plan or tier is listed.
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