NASA Open APIs

NASA DONKI Space Weather API

Space Weather Database Of Notifications, Knowledge, Information (DONKI) — a comprehensive on-line tool for space weather forecasters, scientists, and the general public. Exposes coronal mass ejections, geomagnetic storms, interplanetary shocks, solar flares, solar energetic particles, magnetopause crossings, radiation belt enhancements, and high-speed streams.

NASA DONKI Space Weather API is one of 17 APIs that NASA Open APIs publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 machine-runnable capability that can be deployed as REST, MCP, or Agent Skill surfaces via Naftiko.

Tagged areas include Space Weather, Heliophysics, Solar, and NASA. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, and 1 Naftiko capability spec.

GitHub OpenAPI

Documentation

📖
Documentation
https://ccmc.gsfc.nasa.gov/tools/DONKI/

Specifications

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OpenAPI
https://raw.githubusercontent.com/api-evangelist/nasa-gov/refs/heads/main/openapi/donki-openapi.yml

Other Resources

🔗
NaftikoCapability
https://raw.githubusercontent.com/api-evangelist/nasa-gov/refs/heads/main/capabilities/donki.yaml

OpenAPI Specification

donki-openapi.yml Raw ↑ 
openapi: 3.0.3
info:
  title: NASA DONKI Space Weather API
  description: |
    Space Weather Database Of Notifications, Knowledge, Information (DONKI) is a comprehensive online tool
    for space weather forecasters, scientists, and the general public providing access to coronal mass
    ejections, geomagnetic storms, interplanetary shocks, solar flares, solar energetic particles,
    magnetopause crossings, radiation belt enhancements, and high-speed streams.
  version: '1.0'
  contact:
    name: NASA Open APIs
    url: https://api.nasa.gov/
  license:
    name: US Government Work (Public Domain)
servers:
- url: https://api.nasa.gov
security:
- ApiKeyAuth: []
paths:
  /DONKI/CME:
    get:
      summary: Get Coronal Mass Ejections
      operationId: getCME
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of CME records.
  /DONKI/CMEAnalysis:
    get:
      summary: Get CME Analysis
      operationId: getCMEAnalysis
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - name: mostAccurateOnly
        in: query
        schema:
          type: boolean
      - name: speed
        in: query
        schema:
          type: number
      - name: halfAngle
        in: query
        schema:
          type: number
      - name: catalog
        in: query
        schema:
          type: string
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of CME analysis records.
  /DONKI/GST:
    get:
      summary: Get Geomagnetic Storms
      operationId: getGST
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of geomagnetic storm records.
  /DONKI/IPS:
    get:
      summary: Get Interplanetary Shocks
      operationId: getIPS
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - name: location
        in: query
        schema:
          type: string
      - name: catalog
        in: query
        schema:
          type: string
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of interplanetary shock records.
  /DONKI/FLR:
    get:
      summary: Get Solar Flares
      operationId: getFLR
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of solar flare records.
  /DONKI/SEP:
    get:
      summary: Get Solar Energetic Particles
      operationId: getSEP
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of solar energetic particle records.
  /DONKI/MPC:
    get:
      summary: Get Magnetopause Crossings
      operationId: getMPC
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of magnetopause crossing records.
  /DONKI/RBE:
    get:
      summary: Get Radiation Belt Enhancements
      operationId: getRBE
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of radiation belt enhancement records.
  /DONKI/HSS:
    get:
      summary: Get High Speed Streams
      operationId: getHSS
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of high speed stream records.
  /DONKI/WSAEnlilSimulations:
    get:
      summary: Get WSA+EnlilSimulations
      operationId: getWSAEnlilSimulations
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of WSA+Enlil simulation records.
  /DONKI/notifications:
    get:
      summary: Get DONKI Notifications
      operationId: getNotifications
      tags:
      - DONKI
      parameters:
      - $ref: '#/components/parameters/StartDate'
      - $ref: '#/components/parameters/EndDate'
      - name: type
        in: query
        description: 'Notification type filter. One of: all, FLR, SEP, CME, IPS, MPC, GST, RBE, report.'
        schema:
          type: string
      - $ref: '#/components/parameters/ApiKey'
      responses:
        '200':
          description: Array of notifications.
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: api_key
  parameters:
    StartDate:
      name: startDate
      in: query
      description: Start date (YYYY-MM-DD). Defaults to 30 days prior to current UTC time.
      schema:
        type: string
        format: date
    EndDate:
      name: endDate
      in: query
      description: End date (YYYY-MM-DD). Defaults to current UTC time.
      schema:
        type: string
        format: date
    ApiKey:
      name: api_key
      in: query
      required: true
      schema:
        type: string
        default: DEMO_KEY