RiskIQ

RiskIQ was a San Francisco-based external threat intelligence and attack surface management company, known for its PassiveTotal platform (passive DNS, WHOIS, SSL certificate and host-pair intelligence), Digital Footprint external asset discovery, and External Threats brand/phishing detection. It exposed a developer REST API at api.riskiq.net and a research console at community.riskiq.com. Microsoft acquired RiskIQ in 2021 and folded its technology into Microsoft Defender Threat Intelligence (MDTI) and Microsoft Defender External Attack Surface Management (Defender EASM). As of this enrichment pass the riskiq.com domain runs on Microsoft/Azure infrastructure and www.riskiq.com issues a 301 redirect to the Microsoft Defender Threat Intelligence product page; the standalone RiskIQ/PassiveTotal API hosts (api.riskiq.net, community.riskiq.com) no longer accept connections. This profile is retained as a historical/acquired-company record with no live, independent API surface to enrich.

RiskIQ is profiled on the APIs.io network. Tagged areas include Company, Security, Threat Intelligence, Attack Surface Management, and Cybersecurity.

🌐 Visit website 📡 Source on GitHub

5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Security Threat Intelligence Attack Surface Management Cybersecurity Passive DNS Acquired

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 5.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

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 Well-Known Document 0 / 5

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.

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Resources

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: riskiq
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/riskiq.png
name: RiskIQ
description: RiskIQ was a San Francisco-based external threat intelligence and attack surface management company, known for
  its PassiveTotal platform (passive DNS, WHOIS, SSL certificate and host-pair intelligence), Digital Footprint external asset
  discovery, and External Threats brand/phishing detection. It exposed a developer REST API at api.riskiq.net and a research
  console at community.riskiq.com. Microsoft acquired RiskIQ in 2021 and folded its technology into Microsoft Defender Threat
  Intelligence (MDTI) and Microsoft Defender External Attack Surface Management (Defender EASM). As of this enrichment pass
  the riskiq.com domain runs on Microsoft/Azure infrastructure and www.riskiq.com issues a 301 redirect to the Microsoft Defender
  Threat Intelligence product page; the standalone RiskIQ/PassiveTotal API hosts (api.riskiq.net, community.riskiq.com) no
  longer accept connections. This profile is retained as a historical/acquired-company record with no live, independent API
  surface to enrich.
url: https://raw.githubusercontent.com/api-evangelist/riskiq/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: microsoft
x-successor: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-defender-threat-intelligence
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Security
- Threat Intelligence
- Attack Surface Management
- Cybersecurity
- Passive DNS
- Acquired
apis: []
common:
- type: Website
  url: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-defender-threat-intelligence
  name: Microsoft Defender Threat Intelligence (successor to RiskIQ)
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: nochange
  artifacts_added: 0
  pass: local-v1
x-parent: microsoft
x-relationship: acquisition

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