ReliaQuest is a Tampa-based, privately held cybersecurity company whose GreyMatter platform runs agentic AI security operations (detection, containment, investigation and response) on top of the security tools a customer already owns, connected through bidirectional APIs to 300+ technologies. Customers automate GreyMatter through the GreyMatter API, a single-endpoint GraphQL API (incidents, cases, tasks, detections, playbooks, DRP alerts, discover tasks, users, access groups and API keys) documented as a public Postman collection at apidocs.myreliaquest.com and authenticated with an X-API-KEY header. ReliaQuest also operates the Digital Shadows SearchLight Portal API (digital risk protection) acquired with Digital Shadows in 2022, whose reference is customer-only.
ReliaQuest is listed with 2 APIs on the APIs.io network, including GreyMatter API, and 1 more. Tagged areas include Cybersecurity, Security Operations, Threat Detection, Incident Response, and Threat Intelligence.
ReliaQuest’s developer surface includes engineering blog, documentation, API reference, changelog, FAQ, pricing, support, and 24 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
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):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
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)
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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.
The GreyMatter API exposes select GreyMatter capabilities through a single GraphQL endpoint. All requests are HTTPS POSTs with JSON bodies authenticated by an X-API-KEY header; ...
REST API of the Digital Shadows SearchLight digital-risk-protection portal, operated by ReliaQuest since its 2022 acquisition of Digital Shadows (unauthenticated calls return a ...
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