Department of Homeland Security
The U.S. Department of Homeland Security (DHS) is a cabinet-level federal agency responsible for protecting the nation from terrorism, securing borders, enforcing immigration law, responding to disasters, and securing cyberspace. DHS exposes APIs across its operational components, including FEMA's OpenFEMA platform, USCIS's Developer Portal, the CISA Known Exploited Vulnerabilities catalog, the National Terrorism Advisory System (NTAS) feed, and the DHS Open Data Catalog.
Department of Homeland Security publishes 14 APIs on the APIs.io network, including DisasterDeclarationsSummaries API, EmergencyManagementPerformanceGrants API, FemaRegions API, and 11 more. Tagged areas include CISA, Cybersecurity, Disaster, Federal Government, and FEMA.
The Department of Homeland Security catalog on APIs.io includes 1 JSON-LD context.
Department of Homeland Security’s developer surface includes privacy policy, engineering blog, and 21 more developer resources.
Kin Score
APIs 19
Individual APIs this provider publishes, each with its own machine-readable definition.
USCIS Case Status API
The USCIS Case Status API provides programmatic access to the same Case Status Online lookup that immigration applicants use, allowing authorized partners to retrieve the curren...
USCIS FOIA Request and Status API
The USCIS FOIA Request and Status API allows partners to submit Freedom of Information Act requests programmatically and check the status of submitted requests. It is published ...
CISA Known Exploited Vulnerabilities Catalog Feed
The CISA Known Exploited Vulnerabilities (KEV) catalog is a curated list of vulnerabilities that have been actively exploited in the wild. The catalog is published as a JSON and...
National Terrorism Advisory System Feed
The National Terrorism Advisory System (NTAS) feed publishes current terrorism alerts and bulletins issued by DHS as XML files. Developers can consume the feed to surface adviso...
DHS Open Data Catalog
The DHS Open Data Catalog publishes datasets across the Department's mission areas (immigration, law enforcement, emergency management, cybersecurity, infrastructure protection,...
Department of Homeland Security DisasterDeclarationsSummaries API
The DisasterDeclarationsSummaries API from Department of Homeland Security — 1 operation(s) for disasterdeclarationssummaries.
Department of Homeland Security EmergencyManagementPerformanceGrants API
The EmergencyManagementPerformanceGrants API from Department of Homeland Security — 1 operation(s) for emergencymanagementperformancegrants.
Department of Homeland Security FemaRegions API
The FemaRegions API from Department of Homeland Security — 1 operation(s) for femaregions.
Department of Homeland Security FemaWebDisasterSummaries API
The FemaWebDisasterSummaries API from Department of Homeland Security — 1 operation(s) for femawebdisastersummaries.
Department of Homeland Security FimaNfipClaims API
The FimaNfipClaims API from Department of Homeland Security — 1 operation(s) for fimanfipclaims.
Department of Homeland Security FimaNfipPolicies API
The FimaNfipPolicies API from Department of Homeland Security — 1 operation(s) for fimanfippolicies.
Department of Homeland Security HazardMitigationAssistanceProjects API
The HazardMitigationAssistanceProjects API from Department of Homeland Security — 1 operation(s) for hazardmitigationassistanceprojects.
Department of Homeland Security HazardMitigationGrants API
The HazardMitigationGrants API from Department of Homeland Security — 1 operation(s) for hazardmitigationgrants.
Department of Homeland Security HousingAssistanceOwners API
The HousingAssistanceOwners API from Department of Homeland Security — 1 operation(s) for housingassistanceowners.
Department of Homeland Security HousingAssistanceRenters API
The HousingAssistanceRenters API from Department of Homeland Security — 1 operation(s) for housingassistancerenters.
Department of Homeland Security IndividualsAndHouseholdsProgramValidRegistrations API
The IndividualsAndHouseholdsProgramValidRegistrations API from Department of Homeland Security — 1 operation(s) for individualsandhouseholdsprogramvalidregistrations.
Department of Homeland Security MissionAssignments API
The MissionAssignments API from Department of Homeland Security — 1 operation(s) for missionassignments.
Department of Homeland Security PublicAssistanceApplicants API
The PublicAssistanceApplicants API from Department of Homeland Security — 1 operation(s) for publicassistanceapplicants.
Department of Homeland Security PublicAssistanceFundedProjectsDetails API
The PublicAssistanceFundedProjectsDetails API from Department of Homeland Security — 1 operation(s) for publicassistancefundedprojectsdetails.
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Open Collections 1
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
OpenFEMA API
OPEN COLLECTIONPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Department Of Homeland Security Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 1
Portal, sign-up, and the first successful call
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 10
Properties that don't map to a standard resource type
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