NASA APIs

by api.nasa.gov

Science and space Added on October 31st, 2026 Checked and working on November 1st, 2026

What it does

api.nasa.gov is the portal to a collection of NASA APIs: the Astronomy Picture of the Day, photos from the Mars rovers, near-Earth asteroids, space weather events, Earth imagery from the EPIC camera, and more. Responses are JSON. Free; the shared DEMO_KEY works for trying things out, and a free personal key gives much higher limits.

API
HTTP-GET
JSON
REST

At a glance

API key: Needed, free · More APIs with a free key
Pricing: Free; the shared DEMO_KEY works for trying things out, and a free personal key gives much higher limits.
From the browser: Yes (CORS)
Formats: JSON
Interface: REST, HTTP-GET
Provider: api.nasa.gov
Last checked: Working on November 1st, 2026

More information: https://api.nasa.gov/

Is this your service? Show that it is listed

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HTML

<a href="https://free-web-services.com/web-services/science/nasa-apis.html"><img src="https://free-web-services.com/badge.svg" width="208" height="44" alt="Listed on Free Web Services" /></a>

Markdown

[![Listed on Free Web Services](https://free-web-services.com/badge.svg)](https://free-web-services.com/web-services/science/nasa-apis.html)

Example request

curl

curl 'https://api.nasa.gov/planetary/apod?api_key=YOUR_API_KEY'

JavaScript

const response = await fetch("https://api.nasa.gov/planetary/apod?api_key=YOUR_API_KEY");
const data = await response.json();
console.log(data);

Python

import requests

response = requests.get(
    "https://api.nasa.gov/planetary/apod?api_key=YOUR_API_KEY",
    timeout=30,
)
print(response.json())

Replace YOUR_API_KEY with your own key. The JavaScript works in a web page as well as in Node.js 18 or newer.