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
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanySecurityThreat IntelligenceAttack Surface ManagementCybersecurityPassive DNSAcquired

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 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
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Resources

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: riskiq
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: '0.20'
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