OpenFEMA

OpenFEMA is FEMA's open data platform, publishing free, public, machine-readable datasets on disaster declarations, public assistance grants, hazard mitigation projects, the National Flood Insurance Program (NFIP), and emergency alerting through a read-only RESTful API. The API uses OData-style query string parameters ($filter, $select, $top, $skip, $orderby) over individually versioned dataset endpoints, requires no API key or subscription, and returns JSON, CSV, or Parquet.

OpenFEMA publishes 7 API contracts indexed on the APIs.io network, including Catalog API, Disaster Declarations API, Hazard Mitigation API, and 4 more. Tagged areas include Government, Open Data, Emergency Management, Disaster, and FEMA.

The OpenFEMA catalog on APIs.io includes 1 Spectral governance ruleset.

OpenFEMA’s developer surface includes engineering blog, documentation, and 5 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.8/100 emerging ▬ flat Agent 20/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessOpen

1 published contract

Government Open Data Emergency Management Disaster FEMA Public Safety

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Public Safety & Emergency Operations Management

BC-3310

Disaster DeclarationsHazard MitigationIPAWSPublic AssistanceWeb Disaster Summaries

GET /v2/DisasterDeclarationsSummaries GET /v3/HazardMitigationAssistanceProjects GET /v1/IpawsArchivedAlerts GET /v1/PublicAssistanceFundedProjectsDetails

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 21.8/100 · emerging

Contract Quality 9.2 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.8 / 11

Contract Governance 1.4 / 10

Discoverability 5.6 / 9

Regulatory Posture 0.0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points Ask about this →
Developer Ergonomics scores 19.0 — up to +16.2 composite points Ask about this →
Contract Quality scores 43.5 — up to +14.1 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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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 the provider profile at artifacts.apis.io/fema/apis.yml: open an issue on github.com/api-evangelist/fema to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 7

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

OpenFEMA Catalog API

Self-describing metadata - dataset list and data dictionaries.

OpenFEMA Disaster Declarations API

Federally declared disasters.

OpenFEMA Hazard Mitigation API

Hazard Mitigation Assistance (HMA) grant program data.

OpenFEMA IPAWS API

Integrated Public Alert and Warning System archived alerts.

OpenFEMA NFIP API

National Flood Insurance Program redacted policy and claims data.

OpenFEMA Public Assistance API

FEMA Public Assistance (PA) grant program data.

OpenFEMA Web Disaster Summaries API

Per-disaster financial summary totals from NEMIS.

Scroll for all 7

Open Collections 8

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

OpenFEMA Catalog API

OPEN COLLECTION

OpenFEMA Catalog Disaster Declarations API

OPEN COLLECTION

OpenFEMA Catalog Hazard Mitigation API

OPEN COLLECTION

OpenFEMA Catalog IPAWS API

OPEN COLLECTION

OpenFEMA Catalog NFIP API

OPEN COLLECTION

OpenFEMA Catalog Public Assistance API

OPEN COLLECTION

OpenFEMA Catalog Web Disaster Summaries API

OPEN COLLECTION

OpenFEMA API

OPEN COLLECTION

Scroll for all 8

OpenFEMA API pricing

Rate limits

Default Records Per Call: 1000 records
Maximum Records Per Call: 10000 records
Paging Beyond the Ceiling: unbounded via $skip records

Compiled by API Evangelist, not yet checked against OpenFEMA's documentation. All 5 limits →

Rate Limits 1

Documented rate limits and quota policies.

OpenFEMA Rate Limits

5 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

OpenFEMA API Rules

57 rules · 55 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 1

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

OpenFEMA Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

OpenFEMA Agentic Access

9 operations

9 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: fema
url: https://raw.githubusercontent.com/api-evangelist/fema/refs/heads/main/apis.yml
name: OpenFEMA
kind: government
description: OpenFEMA is FEMA's open data platform, publishing free, public, machine-readable datasets on disaster declarations,
  public assistance grants, hazard mitigation projects, the National Flood Insurance Program (NFIP), and emergency alerting
  through a read-only RESTful API. The API uses OData-style query string parameters ($filter, $select, $top, $skip, $orderby)
  over individually versioned dataset endpoints, requires no API key or subscription, and returns JSON, CSV, or Parquet.
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: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fema.png
tags:
- Government
- Open Data
- Emergency Management
- Disaster
- FEMA
- Public Safety
created: '2026-07-03'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: fema:fema-catalog-api
  name: OpenFEMA Catalog API
  description: Self-describing metadata - dataset list and data dictionaries.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/fema-catalog-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-disaster-declarations-api
  name: OpenFEMA Disaster Declarations API
  description: Federally declared disasters.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - Disaster Declarations
  properties:
  - type: OpenAPI
    url: openapi/fema-disaster-declarations-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-hazard-mitigation-api
  name: OpenFEMA Hazard Mitigation API
  description: Hazard Mitigation Assistance (HMA) grant program data.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - Hazard Mitigation
  properties:
  - type: OpenAPI
    url: openapi/fema-hazard-mitigation-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-ipaws-api
  name: OpenFEMA IPAWS API
  description: Integrated Public Alert and Warning System archived alerts.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - IPAWS
  properties:
  - type: OpenAPI
    url: openapi/fema-ipaws-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-nfip-api
  name: OpenFEMA NFIP API
  description: National Flood Insurance Program redacted policy and claims data.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - NFIP
  properties:
  - type: OpenAPI
    url: openapi/fema-nfip-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-public-assistance-api
  name: OpenFEMA Public Assistance API
  description: FEMA Public Assistance (PA) grant program data.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - Public Assistance
  properties:
  - type: OpenAPI
    url: openapi/fema-public-assistance-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
- aid: fema:fema-web-disaster-summaries-api
  name: OpenFEMA Web Disaster Summaries API
  description: Per-disaster financial summary totals from NEMIS.
  humanURL: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  baseURL: https://www.fema.gov/api/open/v2
  tags:
  - Web Disaster Summaries
  properties:
  - type: OpenAPI
    url: openapi/fema-web-disaster-summaries-api-openapi.yml
  - type: Documentation
    url: https://www.fema.gov/about/openfema/api
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
  - type: APIReference
    url: https://www.fema.gov/about/openfema/data-sets
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
  - type: APIReference
    url: https://www.fema.gov/openfema-data-page/openfema-data-sets-v1
common:
- url: https://www.fema.gov/about/news-multimedia/blog
  type: Blog
- type: CapabilityMap
  url: capabilities/fema-capability-edges.yml
  name: OpenFEMA Business Capability Map
- type: AgenticAccess
  url: agentic-access/fema-agentic-access.yml
- type: DomainSecurity
  url: security/fema-domain-security.yml
- type: Website
  url: https://www.fema.gov/
- type: Documentation
  url: https://www.fema.gov/about/openfema/api
- type: RateLimits
  url: rate-limits/fema-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

OpenFEMA API — frequently asked questions

Does OpenFEMA have an API?

Yes. APIs.io lists 7 APIs from OpenFEMA, including OpenFEMA Catalog API, OpenFEMA Disaster Declarations API and OpenFEMA Hazard Mitigation API, and 4 more.

Is there an OpenAPI specification for the OpenFEMA API?

Yes. APIs.io indexes 7 OpenAPI specifications for OpenFEMA, each linked for download from this page.

Is the OpenFEMA API ready for AI agents?

OpenFEMA has a Kin Score of 21.8 out of 100 (emerging) and an Agent Readiness score of 19.8 (agent-aware), scored by API Evangelist on 2026-11-13.

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