Cybersecurity and Infrastructure Security Agency

The Cybersecurity and Infrastructure Security Agency (CISA) is the United States federal civilian cybersecurity agency, part of the Department of Homeland Security. CISA reduces cybersecurity and physical security risk for the nation, coordinates federal civilian cyber defense, and partners with state, local, tribal, and territorial governments and the private sector. CISA publishes a number of public, unauthenticated machine-readable feeds, including the Known Exploited Vulnerabilities (KEV) catalog (mandatorily remediated by federal civilian agencies under Binding Operational Directive 22-01), Cybersecurity Advisories, and Common Security Advisory Framework (CSAF) advisories. CISA also operates an Automated Indicator Sharing (AIS) TAXII 2.1 server that delivers STIX cyber threat indicators to vetted partners under a Terms of Use and Interconnection Agreement.

Cybersecurity and Infrastructure Security Agency publishes 2 APIs on the APIs.io network: KEV API and Schema API. Tagged areas include Advisories, AIS, Binding Operational Directive, CSAF, and CVE.

The Cybersecurity and Infrastructure Security Agency catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Cybersecurity and Infrastructure Security Agency’s developer surface includes engineering blog and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.8/100 developing ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs

Advisories AISBinding Operational DirectiveCSAFCVECWECybersecurity Federal-Government GovernmentICS-CERTInformation SharingKEVKnown Exploited VulnerabilitiesRisk Management Security STIX TAXII Threat Intelligence Vulnerability Management

Kin Score

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

Composite quality — 40.8/100 · developing

Contract Quality 12.3 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 4.9 / 17

Operational Transparency 1.2 / 11

Contract Governance 7.1 / 10

Discoverability 5.0 / 9

Regulatory Posture 5.8 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 4 / 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 Government & Public Sector 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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/cybersecurity-and-infrastructure-security-agency: 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 4

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

CISA Automated Indicator Sharing (AIS) TAXII Server

CISA's Automated Indicator Sharing (AIS) program uses a TAXII 2.1 server to deliver STIX-formatted cyber threat indicators (CTI) and defensive measures (DM) to vetted partners. ...

CISA Cybersecurity Advisories

CISA publishes Cybersecurity Advisories (CSAs), Industrial Control Systems Advisories (ICSAs), and Common Security Advisory Framework (CSAF) JSON documents describing tactics, t...

Cybersecurity and Infrastructure Security Agency KEV API

Known Exploited Vulnerabilities catalog feed

Cybersecurity and Infrastructure Security Agency Schema API

JSON Schema for the KEV catalog

Open Collections 4

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

API Collection

OPEN COLLECTION

CISA Known Exploited Vulnerabilities (KEV) Catalog API

OPEN COLLECTION

CISA Known Exploited Vulnerabilities () Catalog KEV API

OPEN COLLECTION

CISA Known Exploited Vulnerabilities () Catalog KEV Schema API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Cybersecurity And Infrastructure Security Agency Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cybersecurity And Infrastructure Security Agency Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Cybersecurity And Infrastructure Security Agency Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Cisa Context

18 classes · 0 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Cybersecurity and Infrastructure Security Agency API Rules

5 rules · 2 errors 3 warnings

SPECTRAL

Cybersecurity and Infrastructure Security Agency API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

KevVulnerability

11 properties

JSON SCHEMA

Security Posture 2

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

Cybersecurity And Infrastructure Security Agency Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Cybersecurity And Infrastructure Security Agency Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Cybersecurity And Infrastructure Security Agency Agentic Access

3 operations

3 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Vocabulary

Vocabulary

Rules

Rules

Build 2

SDKs, sample code, and the tooling you integrate with

ResourcesAndTools

ResourcesAndTools

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ContactUs

ContactUs

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

LinkedIn

Website

Website

NewsAndEvents

NewsAndEvents

Blog

Blog

Other 5

Properties that don't map to a standard resource type

CapabilityMap

KEVCatalog

Advisories

Topics

KEVDataMirror

Source (apis.yml)

aid: cybersecurity-and-infrastructure-security-agency
name: Cybersecurity and Infrastructure Security Agency
kind: government
description: The Cybersecurity and Infrastructure Security Agency (CISA) is the United States federal civilian cybersecurity
  agency, part of the Department of Homeland Security. CISA reduces cybersecurity and physical security risk for the nation,
  coordinates federal civilian cyber defense, and partners with state, local, tribal, and territorial governments and the
  private sector. CISA publishes a number of public, unauthenticated machine-readable feeds, including the Known Exploited
  Vulnerabilities (KEV) catalog (mandatorily remediated by federal civilian agencies under Binding Operational Directive 22-01),
  Cybersecurity Advisories, and Common Security Advisory Framework (CSAF) advisories. CISA also operates an Automated Indicator
  Sharing (AIS) TAXII 2.1 server that delivers STIX cyber threat indicators to vetted partners under a Terms of Use and Interconnection
  Agreement.
url: https://raw.githubusercontent.com/api-evangelist/cybersecurity-and-infrastructure-security-agency/refs/heads/main/apis.yml
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cybersecurity-and-infrastructure-security-agency.png
type: Index
access: 3rd-Party
position: Consuming
created: '2024-12-03'
modified: '2026-05-19'
specificationVersion: '0.23'
tags:
- Advisories
- AIS
- Binding Operational Directive
- CSAF
- CVE
- CWE
- Cybersecurity
- Federal-Government
- Government
- ICS-CERT
- Information Sharing
- KEV
- Known Exploited Vulnerabilities
- Risk Management
- Security
- STIX
- TAXII
- Threat Intelligence
- Vulnerability Management
tags_raw:
- Advisories
- AIS
- Binding Operational Directive
- CSAF
- CVE
- CWE
- Cybersecurity
- Federal Government
- Government
- ICS-CERT
- Information Sharing
- KEV
- Known Exploited Vulnerabilities
- Risk Management
- Security
- STIX
- TAXII
- Threat Intelligence
- Vulnerability Management
apis:
- aid: cybersecurity-and-infrastructure-security-agency:ais
  name: CISA Automated Indicator Sharing (AIS) TAXII Server
  description: CISA's Automated Indicator Sharing (AIS) program uses a TAXII 2.1 server to deliver STIX-formatted cyber threat
    indicators (CTI) and defensive measures (DM) to vetted partners. AIS includes AIS PUBLIC, FEDGOV, and CISCP feed communities.
    Connection requires a static IP, a Terms of Use, and an Interconnection Agreement; commercial data aggregators also redistribute
    AIS content to subscribers.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.cisa.gov/topics/cyber-threats-and-advisories/information-sharing/automated-indicator-sharing-ais
  tags:
  - AIS
  - Information Sharing
  - STIX
  - TAXII
  - Threat Intelligence
  properties:
  - type: Documentation
    url: https://www.cisa.gov/topics/cyber-threats-and-advisories/information-sharing/automated-indicator-sharing-ais
  - type: ConnectionGuide
    url: https://www.cisa.gov/resources-tools/resources/automated-indicator-sharing-ais-taxii-server-connection-guide
  - type: TAXIIDocumentation
    url: https://www.cisa.gov/automated-indicator-sharing-ais-20-documents-more-information
- aid: cybersecurity-and-infrastructure-security-agency:advisories
  name: CISA Cybersecurity Advisories
  description: CISA publishes Cybersecurity Advisories (CSAs), Industrial Control Systems Advisories (ICSAs), and Common Security
    Advisory Framework (CSAF) JSON documents describing tactics, techniques, indicators, and required mitigations for active
    threats. Advisories are browsable on cisa.gov and many are exported as machine-readable CSAF JSON.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.cisa.gov/news-events/cybersecurity-advisories
  tags:
  - Advisories
  - CSAF
  - ICS-CERT
  - Threat Intelligence
  properties:
  - type: Documentation
    url: https://www.cisa.gov/news-events/cybersecurity-advisories
  - type: ICSAdvisories
    url: https://www.cisa.gov/news-events/ics-advisories
  - type: CSAF
    url: https://www.cisa.gov/news-events/cybersecurity-advisories/csaf
- aid: cybersecurity-and-infrastructure-security-agency:cybersecurity-and-infrastructure-security-agency-kev-api
  name: Cybersecurity and Infrastructure Security Agency KEV API
  description: Known Exploited Vulnerabilities catalog feed
  humanURL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
  baseURL: https://www.cisa.gov
  tags:
  - KEV
  properties:
  - type: OpenAPI
    url: openapi/cybersecurity-and-infrastructure-security-agency-kev-api-openapi.yml
  - type: Documentation
    url: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
  - type: JSONFeed
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
  - type: CSVFeed
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.csv
  - type: JSONSchema
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities_schema.json
  - type: GitHubMirror
    url: https://github.com/cisagov/kev-data
  - type: Rules
    url: rules/cisa-kev-rules.yml
- aid: cybersecurity-and-infrastructure-security-agency:cybersecurity-and-infrastructure-security-agency-schema-api
  name: Cybersecurity and Infrastructure Security Agency Schema API
  description: JSON Schema for the KEV catalog
  humanURL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
  baseURL: https://www.cisa.gov
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/cybersecurity-and-infrastructure-security-agency-schema-api-openapi.yml
  - type: Documentation
    url: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
  - type: JSONFeed
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
  - type: CSVFeed
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.csv
  - type: JSONSchema
    url: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities_schema.json
  - type: GitHubMirror
    url: https://github.com/cisagov/kev-data
  - type: Rules
    url: rules/cisa-kev-rules.yml
common:
- type: CapabilityMap
  url: capabilities/cybersecurity-and-infrastructure-security-agency-capability-edges.yml
  name: Cybersecurity and Infrastructure Security Agency Business Capability Map
- type: AgenticAccess
  url: agentic-access/cybersecurity-and-infrastructure-security-agency-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/cybersecurity-and-infrastructure-security-agency-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cybersecurity-and-infrastructure-security-agency-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/cisagov
- type: Website
  url: https://www.cisa.gov
- type: KEVCatalog
  url: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- type: Advisories
  url: https://www.cisa.gov/news-events/cybersecurity-advisories
- type: Topics
  url: https://www.cisa.gov/topics
- type: ResourcesAndTools
  url: https://www.cisa.gov/resources-tools
- type: NewsAndEvents
  url: https://www.cisa.gov/news-events
- type: GitHubOrganization
  url: https://github.com/cisagov
- type: KEVDataMirror
  url: https://github.com/cisagov/kev-data
- type: ContactUs
  url: https://www.cisa.gov/about/contact-us
- type: PrivacyPolicy
  url: https://www.cisa.gov/privacy-policy
- type: JSONLD
  url: json-ld/cisa-context.jsonld
- type: JSONSchema
  url: json-schema/cisa-kev-vulnerability-schema.json
- type: Vocabulary
  url: vocabulary/cisa-vocabulary.yml
- type: Rules
  url: rules/cisa-kev-rules.yml
- url: https://www.cisa.gov/cybersecurity-advisories/all.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/cybersecurity-and-infrastructure-security-agency"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/cybersecurity-and-infrastructure-security-agency/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/cybersecurity-and-infrastructure-security-agency/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.