ISS Location API (Open Notify)

aid: iss-api
url: https://raw.githubusercontent.com/api-evangelist/iss-api/refs/heads/main/apis.yml
name: ISS Location API (Open Notify)
kind: API
description: >-
  Open Notify is a free, open-source project by Nathan Bergey that exposes
  real-time NASA and ISS data as simple REST endpoints. The service provides
  the current latitude and longitude of the International Space Station
  (updated every five seconds as the ISS travels at roughly 28,000 km/h), a
  count and roster of all humans currently in space across all spacecraft, and
  historical ISS pass-time predictions for any point on Earth. All endpoints
  are unauthenticated, return JSON, and are free to use without registration.
  The ISS pass-time prediction endpoint has been retired; the location and
  astronaut endpoints remain live and operational.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Space
  - ISS
  - International Space Station
  - NASA
  - Location
  - Geolocation
  - Astronauts
  - Real-Time
  - Open Source
  - Public API
  - Free
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
apis:
  - aid: iss-api:iss-location-now
    name: ISS Current Location
    description: >-
      Returns the current latitude and longitude of the International Space
      Station along with a Unix timestamp indicating when the coordinates were
      recorded. No parameters are required. The data is refreshed approximately
      every five seconds as the ISS orbits Earth at roughly 28,000 km/h and
      at an altitude of approximately 400 km.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: http://open-notify.org/Open-Notify-API/ISS-Location-Now/
    baseURL: http://api.open-notify.org
    tags:
      - ISS
      - Location
      - Latitude
      - Longitude
      - Real-Time
      - Geolocation
    properties:
      - type: Documentation
        url: http://open-notify.org/Open-Notify-API/ISS-Location-Now/
      - type: OpenAPI
        url: https://open-notify-api.readthedocs.io/en/latest/iss_location.html
      - type: GitHubRepository
        url: https://github.com/open-notify/Open-Notify-API
    contact:
      - FN: Open Notify
        url: http://open-notify.org/
  - aid: iss-api:astronauts-in-space
    name: People in Space Right Now
    description: >-
      Returns a JSON object containing the total count of humans currently in
      space and an array of crew member objects, each with the person's name
      and the spacecraft they are aboard. Covers all crewed spacecraft, not
      only the ISS. Requires no parameters or authentication.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: http://open-notify.org/Open-Notify-API/People-In-Space/
    baseURL: http://api.open-notify.org
    tags:
      - Astronauts
      - Crew
      - People in Space
      - ISS
      - Real-Time
    properties:
      - type: Documentation
        url: http://open-notify.org/Open-Notify-API/People-In-Space/
      - type: GitHubRepository
        url: https://github.com/open-notify/Open-Notify-API
    contact:
      - FN: Open Notify
        url: http://open-notify.org/
common:
  - type: Website
    url: http://open-notify.org/
  - type: Documentation
    url: http://open-notify.org/Open-Notify-API/
  - type: GitHubRepository
    url: https://github.com/open-notify/Open-Notify-API
  - type: GitHubOrganization
    url: https://github.com/open-notify
  - type: ReadTheDocs
    url: https://open-notify-api.readthedocs.io/en/latest/
  - type: License
    url: https://github.com/open-notify/Open-Notify-API/blob/master/LICENSE
maintainers:
  - FN: Kin Lane
    email: [email protected]