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.

8 APIs 0 Features

GovernmentOpen DataEmergency ManagementDisasterFEMAPublic Safety

APIs

FEMA Disaster Declarations Summaries API

Summarized dataset of every official FEMA disaster declaration since 1953 - major disaster, emergency, and fire management assistance declarations - by state, county (FIPS), inc...

FEMA Public Assistance Funded Projects Details API

Obligated Public Assistance grant projects (project worksheets) funded under the PA program, including damage category, project amount, and federal share obligated. Joins to the...

FEMA Hazard Mitigation Assistance Projects API

Funded projects under FEMA's Hazard Mitigation Assistance programs - Hazard Mitigation Grant Program (HMGP), Flood Mitigation Assistance (FMA), and (historically) Pre-Disaster M...

FEMA NFIP Redacted Policies API

Policy-level transactions from the National Flood Insurance Program (NFIP) system of record, redacted to protect policyholder personally identifiable information - coverage amou...

FEMA NFIP Redacted Claims API

NFIP claims transactions redacted to protect policyholder PII - date of loss, cause of damage, building/contents payouts, and elevation data by community.

FEMA IPAWS Archived Alerts API

Archive of public alerts issued through the Integrated Public Alert and Warning System (IPAWS) - the federal system that aggregates EAS, Wireless Emergency Alerts, and NOAA Weat...

FEMA Web Disaster Summaries API

Per-disaster financial summary totals - approved Individual Assistance applications, Public Assistance obligations, and Hazard Mitigation grant amounts - sourced raw from FEMA's...

FEMA OpenFEMA Dataset Catalog API

Self-describing metadata layer for the whole platform - the OpenFemaDataSets endpoint lists every dataset and version, and the OpenFemaDataSetFields endpoint returns the data di...

Collections

OpenFEMA API

OPEN

Rate Limits

Fema Rate Limits

5 limits

RATE LIMITS

Resources

Sources

opencollection: 1.0.0
info:
  name: OpenFEMA API
  version: '2.1'
items:
- info:
    name: Disaster Declarations Summaries
    type: folder
  items:
  - info:
      name: List disaster declarations summaries.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $filter
        value: state eq 'FL'
        type: query
        description: OData filter expression.
    docs: Returns summarized records for every official FEMA disaster declaration since 1953.
- info:
    name: Public Assistance
    type: folder
  items:
  - info:
      name: List Public Assistance funded projects details.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsDetails
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $filter
        value: disasterNumber eq 4611
        type: query
        description: OData filter expression.
    docs: Returns obligated Public Assistance grant projects (project worksheets), joinable to Public Assistance Applicants
      via applicantId.
- info:
    name: Hazard Mitigation
    type: folder
  items:
  - info:
      name: List Hazard Mitigation Assistance projects.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v3/HazardMitigationAssistanceProjects
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $filter
        value: state eq 'CA'
        type: query
        description: OData filter expression.
    docs: Returns funded projects under the HMGP, FMA, and (historically) PDM hazard mitigation grant programs.
- info:
    name: NFIP
    type: folder
  items:
  - info:
      name: List NFIP redacted policies.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v2/FimaNfipPolicies
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $filter
        value: propertyState eq 'LA'
        type: query
        description: OData filter expression.
    docs: Returns policy-level NFIP transactions redacted to protect policyholder personally identifiable information.
  - info:
      name: List NFIP redacted claims.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v2/FimaNfipClaims
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $filter
        value: yearOfLoss eq 2024
        type: query
        description: OData filter expression.
    docs: Returns NFIP claims transactions redacted to protect policyholder personally identifiable information.
- info:
    name: IPAWS
    type: folder
  items:
  - info:
      name: List IPAWS archived alerts.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v1/IpawsArchivedAlerts
      params:
      - name: $top
        value: '100'
        type: query
        description: Number of records to return (default 1000, max 10000).
      - name: $orderby
        value: sent desc
        type: query
        description: Field to sort by.
    docs: Returns archived Common Alerting Protocol (CAP) messages issued through IPAWS. Hierarchical/nested payload, unique
      among OpenFEMA datasets.
- info:
    name: Web Disaster Summaries
    type: folder
  items:
  - info:
      name: List FEMA web disaster summaries.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v1/FemaWebDisasterSummaries
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
    docs: Returns per-disaster financial summary totals (Individual Assistance, Public Assistance, Hazard Mitigation) sourced
      raw from NEMIS.
- info:
    name: Catalog
    type: folder
  items:
  - info:
      name: List the OpenFEMA dataset catalog.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v1/OpenFemaDataSets
      params:
      - name: $top
        value: '1000'
        type: query
        description: Number of records to return (default 1000, max 10000).
    docs: Returns metadata describing every dataset and version published on OpenFEMA, including whether an API endpoint exists
      for it.
  - info:
      name: List the data dictionary for a dataset/version.
      type: http
    http:
      method: GET
      url: https://www.fema.gov/api/open/v1/OpenFemaDataSetFields
      params:
      - name: $filter
        value: openFemaDataSet eq 'DisasterDeclarationsSummaries' and datasetVersion eq 2
        type: query
        description: OData filter expression scoping to a dataset name and version.
    docs: Returns the field-level data dictionary (name, title, type, description) for a given dataset name and version.