OpenFEMA

OpenFEMA Catalog API

Self-describing metadata - dataset list and data dictionaries.

GitHub OpenAPI

Operations 2

0 of 2 operations are conformant: apis.io called them with no credentials and the responses matched this contract; 2 more answered but could not be checked against a schema. Checked 2026-11-12. how this works · status file

GET /v1/OpenFemaDataSets List the OpenFEMA dataset catalog observed #
GET /v1/OpenFemaDataSetFields List the data dictionary for a dataset/version observed #

Documentation

📖
Documentation
https://www.fema.gov/about/openfema/api
📖
APIReference
https://www.fema.gov/openfema-data-page/disaster-declarations-summaries-v2
📖
APIReference
https://www.fema.gov/openfema-data-page/public-assistance-funded-projects-details-v1
📖
APIReference
https://www.fema.gov/about/openfema/data-sets
📖
APIReference
https://www.fema.gov/openfema-data-page/fima-nfip-redacted-policies-v2
📖
APIReference
https://www.fema.gov/openfema-data-page/fima-nfip-redacted-claims-v2
📖
APIReference
https://www.fema.gov/openfema-data-page/ipaws-archived-alerts-v1
📖
APIReference
https://www.fema.gov/openfema-data-page/fema-web-disaster-summaries-v1
📖
APIReference
https://www.fema.gov/openfema-data-page/openfema-data-sets-v1

Specifications

⚙
OpenAPI
https://artifacts.apis.io/fema/openapi/fema-catalog-api-openapi.yml

Other Resources

🔗
APIsJSON
https://artifacts.apis.io/fema/apis.yml

Work with this as data

Every API 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 apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • 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 API 
curl "https://apis.io/api/v1/apis/fema:fema-catalog-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.

OpenAPI Specification

fema-catalog-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: OpenFEMA Catalog API
  description: OpenFEMA is FEMA's open data platform.
  termsOfService: https://www.fema.gov/about/website-information/privacy-policy
  contact:
    name: OpenFEMA
    email: OpenFEMA@fema.dhs.gov
    url: https://www.fema.gov/about/openfema
  license:
    name: Public Domain (U.S. Government Work)
    url: https://www.usa.gov/government-works
  version: '2.1'
servers:
- url: https://www.fema.gov/api/open
  description: OpenFEMA production API (dataset version is part of each path)
tags:
- name: Catalog
  description: Self-describing metadata - dataset list and data dictionaries.
paths:
  /v1/OpenFemaDataSets:
    get:
      operationId: listOpenFemaDataSets
      tags:
      - Catalog
      summary: List the OpenFEMA dataset catalog
      description: Returns metadata describing every dataset and version published on OpenFEMA - name, version, description, last-refresh date, record count, and whether an API endpoint exists for it.
      parameters:
      - $ref: '#/components/parameters/Filter'
      - $ref: '#/components/parameters/Select'
      - $ref: '#/components/parameters/Top'
      - $ref: '#/components/parameters/Skip'
      - $ref: '#/components/parameters/OrderBy'
      - $ref: '#/components/parameters/Format'
      - $ref: '#/components/parameters/Metadata'
      responses:
        '200':
          description: A page of dataset catalog records.
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/OpenFemaEnvelope'
                - type: object
                  properties:
                    OpenFemaDataSets:
                      type: array
                      items:
                        $ref: '#/components/schemas/OpenFemaDataSet'
        '400':
          $ref: '#/components/responses/BadFilter'
  /v1/OpenFemaDataSetFields:
    get:
      operationId: listOpenFemaDataSetFields
      tags:
      - Catalog
      summary: List the data dictionary for a dataset/version
      description: Returns the field-level data dictionary (name, title, type, description) for a given dataset name and version. Typically called with a $filter such as `openFemaDataSet eq 'DisasterDeclarationsSummaries' and datasetVersion eq 2`.
      parameters:
      - $ref: '#/components/parameters/Filter'
      - $ref: '#/components/parameters/Select'
      - $ref: '#/components/parameters/Top'
      - $ref: '#/components/parameters/Skip'
      - $ref: '#/components/parameters/OrderBy'
      - $ref: '#/components/parameters/Format'
      - $ref: '#/components/parameters/Metadata'
      responses:
        '200':
          description: A page of data dictionary field records.
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/OpenFemaEnvelope'
                - type: object
                  properties:
                    OpenFemaDataSetFields:
                      type: array
                      items:
                        $ref: '#/components/schemas/OpenFemaDataSetField'
        '400':
          $ref: '#/components/responses/BadFilter'
components:
  schemas:
    OpenFemaEnvelope:
      type: object
      description: Every OpenFEMA response wraps the requested dataset array in a metadata object (unless $metadata=false is passed).
      properties:
        metadata:
          type: object
          properties:
            skip:
              type: integer
            filter:
              type: string
            orderby:
              type: string
            select:
              type: string
            rundate:
              type: string
              format: date-time
            count:
              type: integer
              description: Total matching records, present only when $count=true.
            entityname:
              type: string
            version:
              type: integer
            url:
              type: string
    OpenFemaDataSetField:
      type: object
      description: One data-dictionary field entry for a dataset/version.
      properties:
        openFemaDataSet:
          type: string
        datasetVersion:
          type: integer
        name:
          type: string
        title:
          type: string
        type:
          type: string
        description:
          type: string
    OpenFemaDataSet:
      type: object
      description: One catalog entry describing a dataset and version.
      properties:
        name:
          type: string
        title:
          type: string
        version:
          type: integer
        description:
          type: string
        webService:
          type: string
          description: API endpoint path, when the dataset is exposed via the API.
        lastDataSetRefresh:
          type: string
          format: date-time
        recordCount:
          type: integer
        dataDictionary:
          type: string
  parameters:
    Select:
      name: $select
      in: query
      description: Comma-separated list of fields to include in the response.
      schema:
        type: string
    Metadata:
      name: $metadata
      in: query
      description: When false, suppresses the metadata envelope object and returns only the data array. Accepts true/false (the legacy on/off values are deprecated).
      schema:
        type: boolean
        default: true
    Format:
      name: $format
      in: query
      description: Response format. Defaults to json when omitted.
      schema:
        type: string
        enum:
        - json
        - csv
        - parquet
        - jsona
        - xlsx
        default: json
    Filter:
      name: $filter
      in: query
      description: OData-style filter expression, e.g. state eq 'FL' and fyDeclared eq 2024. The parser is strict about spacing, quoting, and capitalization; string literals must be single-quoted.
      schema:
        type: string
    Skip:
      name: $skip
      in: query
      description: Number of records to skip, used to page through results beyond $top.
      schema:
        type: integer
        default: 0
        minimum: 0
    Top:
      name: $top
      in: query
      description: Number of records to return. Defaults to 1000 when omitted; maximum of 10000 per call.
      schema:
        type: integer
        default: 1000
        maximum: 10000
        minimum: 1
    OrderBy:
      name: $orderby
      in: query
      description: Field name to sort results by.
      schema:
        type: string
  responses:
    BadFilter:
      description: Malformed OData query string (commonly a $filter with incorrect quoting, spacing, or an unknown field name).
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string