SecurityScorecard

SecurityScorecard is a cybersecurity ratings and third-party risk management platform that continuously rates the security posture of any company from the outside in, producing an A-F security score across ten risk factors. Its REST API (base https://api.securityscorecard.io) lets customers manage portfolios of monitored companies, pull scorecards, factor scores, historical trends, issues/findings, industry benchmarks, and generate reports, and react to changes through webhook-driven Rules. Authentication is a static API token ("Authorization: Token "), and first-party npm SDK and CLI packages are published under the @securityscorecard organization. Originally surfaced as a GV (Google Ventures) portfolio company, this profile has been enriched from SecurityScorecard's public developer documentation.

SecurityScorecard publishes 1 API on the APIs.io network. Tagged areas include Company, Enterprise, Cybersecurity, Security Ratings, and Third-Party Risk.

The SecurityScorecard catalog on APIs.io includes 1 event-driven AsyncAPI specification.

SecurityScorecard’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, authentication, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.5/100 developing ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs 1 MCP Servers

Company Enterprise Cybersecurity Security Ratings Third-Party Risk Risk Management Attack Surface Compliance

Kin Score

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

Composite quality — 43.5/100 · developing

Contract Quality 10.4 / 25

Developer Ergonomics 9.5 / 20

Access Clarity 12.1 / 20

Operational Transparency 3.9 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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.

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/security-scorecard: 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 1

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

SecurityScorecard API

REST API for security ratings, portfolios, scorecards, factor and issue data, historical scores, industry benchmarks, reporting, and webhook Rules.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

SecurityScorecard MCP Server

A community-built MCP server that wraps the SecurityScorecard API. It is NOT affiliated with or published by SecurityScorecard, Inc. No first-party SecurityScorecard-hosted or -...

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Security Scorecard Webhooks

ASYNCAPI

Security Posture 3

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

Security Scorecard Authentication

apiKey · 1 scheme

SECURITY

Security Scorecard Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Security Scorecard Trust Center

ISO 27001, PCI DSS, HIPAA, GDPR

SECURITY

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 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

MCPServer

MCPServer

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Webhooks

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

Authentication

TrustCenter

Compliance

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

Deprecation

Deprecation

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

Source (apis.yml)

aid: security-scorecard
name: SecurityScorecard
description: 'SecurityScorecard is a cybersecurity ratings and third-party risk management platform that continuously rates
  the security posture of any company from the outside in, producing an A-F security score across ten risk factors. Its REST
  API (base https://api.securityscorecard.io) lets customers manage portfolios of monitored companies, pull scorecards, factor
  scores, historical trends, issues/findings, industry benchmarks, and generate reports, and react to changes through webhook-driven
  Rules. Authentication is a static API token ("Authorization: Token <key>"), and first-party npm SDK and CLI packages are
  published under the @securityscorecard organization. Originally surfaced as a GV (Google Ventures) portfolio company, this
  profile has been enriched from SecurityScorecard''s public developer documentation.'
url: https://raw.githubusercontent.com/api-evangelist/security-scorecard/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - 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
  - security
  generated: '2026-09-03'
  method: derived
image: https://securityscorecard.com/wp-content/uploads/2023/01/ssc-logo.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Enterprise
- Cybersecurity
- Security Ratings
- Third-Party Risk
- Risk Management
- Attack Surface
- Compliance
apis:
- name: SecurityScorecard API
  description: REST API for security ratings, portfolios, scorecards, factor and issue data, historical scores, industry benchmarks,
    reporting, and webhook Rules.
  humanURL: https://securityscorecard.readme.io/reference/introduction
  baseURL: https://api.securityscorecard.io
  properties:
  - type: Documentation
    url: https://securityscorecard.readme.io/reference/introduction
  - type: APIReference
    url: https://securityscorecard.readme.io/reference/introduction
  - type: GettingStarted
    url: https://securityscorecard.readme.io/docs/getting-started
  - type: Authentication
    url: authentication/security-scorecard-authentication.yml
  - type: Conventions
    url: conventions/security-scorecard-conventions.yml
  - type: ErrorCatalog
    url: errors/security-scorecard-problem-types.yml
  - type: Lifecycle
    url: lifecycle/security-scorecard-lifecycle.yml
  - type: Webhooks
    url: asyncapi/security-scorecard-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://securityscorecard.com
- type: DeveloperPortal
  url: https://securityscorecard.readme.io
- type: Documentation
  url: https://securityscorecard.readme.io/reference/introduction
- type: APIReference
  url: https://securityscorecard.readme.io/reference/introduction
- type: GettingStarted
  url: https://securityscorecard.readme.io/docs/getting-started
- type: Blog
  url: https://securityscorecard.com/blog/
- type: Pricing
  url: https://securityscorecard.com/pricing/
- type: SignUp
  url: https://securityscorecard.com/free-account-trial/
- type: Login
  url: https://platform.securityscorecard.io/
- type: TermsOfService
  url: https://securityscorecard.com/eusa/
- type: PrivacyPolicy
  url: https://securityscorecard.com/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/securityscorecard
- type: StatusPage
  url: https://securityscorecard.statuspage.io/
- type: Deprecation
  url: https://securityscorecard.readme.io/reference/backwards-compatibility
- type: LLMsTxt
  url: llms/security-scorecard-llms.txt
- type: Authentication
  url: authentication/security-scorecard-authentication.yml
- type: Conventions
  url: conventions/security-scorecard-conventions.yml
- type: ErrorCatalog
  url: errors/security-scorecard-problem-types.yml
- type: Lifecycle
  url: lifecycle/security-scorecard-lifecycle.yml
- type: Webhooks
  url: asyncapi/security-scorecard-webhooks.yml
- type: WellKnown
  url: well-known/security-scorecard-well-known.yml
- type: Packages
  url: packages/security-scorecard-packages.yml
- type: SDKs
  url: packages/security-scorecard-packages.yml
- type: CLI
  url: cli/security-scorecard-cli.yml
- type: MCPServer
  url: mcp/security-scorecard-mcp.yml
- type: TrustCenter
  url: security/security-scorecard-trust-center.yml
- type: Compliance
  url: security/security-scorecard-trust-center.yml
- type: DomainSecurity
  url: security/security-scorecard-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 12
  pass: local-v1

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