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.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Department of Homeland Security the way a machine reads it — 41 machine-readable artifacts across 19 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Department of Homeland Security scores 36.1/100 (thin), with a separate agent-readiness read of 20/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Department of Homeland Security
Each block below is one kind of artifact we hold for Department of Homeland Security. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 19
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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.
Scroll within the panel for all 19 ·
Open Collections 16
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONOpenFEMA DisasterDeclarationsSummaries API
OPEN COLLECTIONOpenFEMA DisasterDeclarationsSummaries FemaRegions API
OPEN COLLECTIONOpenFEMA DisasterDeclarationsSummaries FimaNfipClaims API
OPEN COLLECTIONOpenFEMA DisasterDeclarationsSummaries FimaNfipPolicies API
OPEN COLLECTIONOpenFEMA DisasterDeclarationsSummaries IndividualsAndHouseholdsProgramValidRegistrations API
OPEN COLLECTIONOpenFEMA API
OPEN COLLECTIONScroll within the panel for all 16 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Department Of Homeland Security Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Department of Homeland Security — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
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
Scroll within the panel for all 10 ·
← All providers · Data indexed from github.com/api-evangelist/department-of-homeland-security · machine-readable index on apis.io
This is an independent, third-party profile of Department of Homeland Security, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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