SpyCloud

SpyCloud is an Austin, Texas based identity threat protection company that operates one of the largest repositories of recaptured darknet data — breach records, infostealer malware logs, phishing captures and combolists — and exposes it programmatically through a family of high-volume REST APIs. Security, fraud, identity and investigations teams query recaptured credentials, session cookies, exposed PII and infected-device telemetry to prevent account takeover, ransomware, session hijacking and online fraud. The public API surface spans nine separately-licensed products: Enterprise (Employee) ATO Prevention, Consumer ATO Prevention, Cybercrime Investigations, Data Partnership, IDLink identity correlation, Compromised Credit Card, Prospecting, NIST Password check, and Session Identity Protection. All are REST/JSON, authenticated with an x-api-key header, IP allow-listed, cursor-paginated at 1,000 records per page, and backed by a 99.9% uptime SLA.

SpyCloud publishes 7 APIs on the APIs.io network, including Breach API, Check API, Compass API, and 4 more. Tagged areas include Cybersecurity, Threat Intelligence, Identity, Fraud Prevention, and Account Takeover.

SpyCloud’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.0/100 developing ▬ flat Agent 32/100 agent ready Front door AI 3/6 light saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

18 APIs

Cybersecurity Threat Intelligence Identity Fraud Prevention Account Takeover Dark WebBreach DataMalware Authentication Security

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 40.0/100 · developing

Contract Quality 8.9 / 19

Developer Ergonomics 3.1 / 15

Access Clarity 7.9 / 15

Operational Transparency 2.1 / 10

Contract Governance 0.4 / 9

Discoverability 5.9 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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

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. 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/spycloud: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

SpyCloud Breach API

The Breach API from SpyCloud — 23 operation(s) for breach.

SpyCloud Check API

The Check API from SpyCloud — 2 operation(s) for check.

SpyCloud Compass API

The Compass API from SpyCloud — 5 operation(s) for compass.

SpyCloud Data API

The Data API from SpyCloud — 2 operation(s) for data.

SpyCloud Query API

The Query API from SpyCloud — 3 operation(s) for query.

SpyCloud Stats API

The Stats API from SpyCloud — 2 operation(s) for stats.

SpyCloud Watchlist API

The Watchlist API from SpyCloud — 5 operation(s) for watchlist.

Scroll for all 7

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Spycloud Breach API

OPEN COLLECTION

Spycloud Check API

OPEN COLLECTION

enterprise-ato-prevention-api Compass API

OPEN COLLECTION

compromised-credit-card-api Data API

OPEN COLLECTION

idlink-api Query API

OPEN COLLECTION

prospecting-api Stats API

OPEN COLLECTION

enterprise-ato-prevention-api Watchlist API

OPEN COLLECTION

Scroll for all 8

Rate Limits 1

Documented rate limits and quota policies.

Spycloud Rate Limits

0 limits

RATE LIMITS

Security Posture 4

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

Spycloud Authentication

apiKey · 2 schemes

SECURITY

Spycloud Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Spycloud Vulnerability Disclosure

security.txt · contact published

SECURITY

Spycloud Trust Center

SOC 2, ISO 27001

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Spycloud Agentic Access

69 operations · 2 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgenticAccess

WellKnown

LLMsTxt

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Access & Security 8

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Compliance

TrustCenter

Security

SecurityTxt

TrustCenter

Scroll for all 8

Operate 5

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

ChangeLog

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

APICatalog

APICatalog

Source (apis.yml)

aid: spycloud
name: SpyCloud
description: 'SpyCloud is an Austin, Texas based identity threat protection company that operates one of the largest repositories
  of recaptured darknet data — breach records, infostealer malware logs, phishing captures and combolists — and exposes it
  programmatically through a family of high-volume REST APIs. Security, fraud, identity and investigations teams query recaptured
  credentials, session cookies, exposed PII and infected-device telemetry to prevent account takeover, ransomware, session
  hijacking and online fraud. The public API surface spans nine separately-licensed products: Enterprise (Employee) ATO Prevention,
  Consumer ATO Prevention, Cybercrime Investigations, Data Partnership, IDLink identity correlation, Compromised Credit Card,
  Prospecting, NIST Password check, and Session Identity Protection. All are REST/JSON, authenticated with an x-api-key header,
  IP allow-listed, cursor-paginated at 1,000 records per page, and backed by a 99.9% uptime SLA.'
url: https://raw.githubusercontent.com/api-evangelist/spycloud/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
image: https://spycloud.com/wp-content/uploads/2025/04/bg-img-dotted-lines-1920x700-1-1.png
specificationVersion: '0.23'
x-type: company
x-source: harvest:secondary-market
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Cybersecurity
- Threat Intelligence
- Identity
- Fraud Prevention
- Account Takeover
- Dark Web
- Breach Data
- Malware
- Authentication
- Security
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: spycloud:spycloud-breach-api
  name: SpyCloud Breach API
  description: The Breach API from SpyCloud — 23 operation(s) for breach.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Breach
  properties:
  - type: OpenAPI
    url: openapi/spycloud-breach-api-openapi.yml
- aid: spycloud:spycloud-check-api
  name: SpyCloud Check API
  description: The Check API from SpyCloud — 2 operation(s) for check.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Check
  properties:
  - type: OpenAPI
    url: openapi/spycloud-check-api-openapi.yml
- aid: spycloud:spycloud-compass-api
  name: SpyCloud Compass API
  description: The Compass API from SpyCloud — 5 operation(s) for compass.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Compass
  properties:
  - type: OpenAPI
    url: openapi/spycloud-compass-api-openapi.yml
- aid: spycloud:spycloud-data-api
  name: SpyCloud Data API
  description: The Data API from SpyCloud — 2 operation(s) for data.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/spycloud-data-api-openapi.yml
- aid: spycloud:spycloud-query-api
  name: SpyCloud Query API
  description: The Query API from SpyCloud — 3 operation(s) for query.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Query
  properties:
  - type: OpenAPI
    url: openapi/spycloud-query-api-openapi.yml
- aid: spycloud:spycloud-stats-api
  name: SpyCloud Stats API
  description: The Stats API from SpyCloud — 2 operation(s) for stats.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/spycloud-stats-api-openapi.yml
- aid: spycloud:spycloud-watchlist-api
  name: SpyCloud Watchlist API
  description: The Watchlist API from SpyCloud — 5 operation(s) for watchlist.
  humanURL: https://docs.spycloud.com/public-sc/reference/enterprise-ato-api-guidelines
  baseURL: https://api.spycloud.io/enterprise-v2
  tags:
  - Watchlist
  properties:
  - type: OpenAPI
    url: openapi/spycloud-watchlist-api-openapi.yml
common:
- type: X-MCPServerCandidate
  url: mcp/spycloud-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Overlay
  url: overlays/spycloud-compromised-credit-card-overlay.yaml
- type: AgenticAccess
  url: agentic-access/spycloud-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/spycloud-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/spycloud-domain-security.yml
- type: Authentication
  url: authentication/spycloud-authentication.yml
- type: Website
  url: https://spycloud.com/
- type: DeveloperPortal
  url: https://docs.spycloud.com/public-sc
- type: Documentation
  url: https://docs.spycloud.com/public-sc/docs
- type: APIReference
  url: https://docs.spycloud.com/public-sc/reference
- type: GettingStarted
  url: https://docs.spycloud.com/public-sc/docs/api-guidelines
- type: Support
  url: https://spycloud.com/support/
- type: Blog
  url: https://spycloud.com/blog/
- type: Pricing
  url: https://spycloud.com/pricing/
- type: SignUp
  url: https://spycloud.com/request-a-demo/
- type: Login
  url: https://portal.spycloud.com/
- type: TermsOfService
  url: https://spycloud.com/legal/terms-of-use/
- type: PrivacyPolicy
  url: https://spycloud.com/legal/privacy-policy/
- type: StatusPage
  url: https://status.spycloud.com/
- type: ChangeLog
  url: https://docs.spycloud.com/public-sc/page/release-notes-1
- type: Compliance
  url: https://spycloud.com/legal/governance-risk-and-compliance/
- type: TrustCenter
  url: https://app.vanta.com/spycloud.com/trust/itvhddyqxnnf6gi6aatcx
- type: Security
  url: https://spycloud.com/.well-known/security.txt
- type: SecurityTxt
  url: well-known/spycloud-security.txt
- type: WellKnown
  url: well-known/spycloud-well-known.yml
- type: APICatalog
  url: well-known/spycloud-api-catalog.json
- type: LLMsTxt
  url: llms/spycloud-llms.txt
- type: Conventions
  url: conventions/spycloud-conventions.yml
- type: ErrorCatalog
  url: errors/spycloud-problem-types.yml
- type: Lifecycle
  url: lifecycle/spycloud-lifecycle.yml
- type: ChangeLog
  url: changelog/spycloud-changelog.yml
- type: Conformance
  url: conformance/spycloud-conformance.yml
- type: RateLimits
  url: rate-limits/spycloud-rate-limits.yml
- type: DataModel
  url: data-model/spycloud-data-model.yml
- type: TrustCenter
  url: security/spycloud-trust-center.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-05'
  status: enriched
  artifacts_added: 54
  pass: local-v1

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