NASA APOD

NASA Astronomy Picture of the Day (APOD) REST API providing daily astronomy images and explanations curated by NASA scientists. Supports retrieval by specific date, date ranges, and random selection, with high-definition image URLs, media type detection, and optional concept tags derived from image metadata. Data is available from 1995-06-16 onward.

NASA APOD publishes 1 API on the APIs.io network: APOD API. Tagged areas include NASA, Astronomy, Space, Images, and Science.

The NASA APOD catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

NASA APOD’s developer surface includes authentication, documentation, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

49.4/100 developing ▬ flat Agent 44/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreeSelf serve⚡ Free to try

1 APIs

NASAAstronomySpaceImagesScienceEducationOpen Data

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 49.4/100 · developing

Contract Quality 17.6 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 6.8 / 13

Governance 7.0 / 12

Discoverability 6.9 / 10

Agent readiness — 44/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/nasa-apod: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Nasa Apod Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

APOD Entry

12 properties

JSON SCHEMA

APOD Request Parameters

8 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: nasa-apod
name: NASA APOD
description: 'NASA Astronomy Picture of the Day (APOD) REST API providing daily astronomy images and explanations curated
  by NASA scientists. Supports retrieval by specific date, date ranges, and random selection, with high-definition image URLs,
  media type detection, and optional concept tags derived from image metadata. Data is available from 1995-06-16 onward.

  '
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nasa-apod.png
url: https://raw.githubusercontent.com/api-evangelist/nasa-apod/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
type: Index
tags:
- NASA
- Astronomy
- Space
- Images
- Science
- Education
- Open Data
apis:
- aid: nasa-apod:nasa-apod-apod-api
  name: NASA APOD APOD API
  description: Astronomy Picture of the Day endpoints
  humanURL: https://api.nasa.gov/
  baseURL: https://api.nasa.gov
  tags:
  - APOD
  properties:
  - type: OpenAPI
    url: openapi/nasa-apod-apod-api-openapi.yml
  - type: Documentation
    url: https://github.com/nasa/apod-api
common:
- type: AgenticAccess
  url: agentic-access/nasa-apod-agentic-access.yml
- type: DomainSecurity
  url: security/nasa-apod-domain-security.yml
- type: Authentication
  url: authentication/nasa-apod-authentication.yml
- type: Website
  url: https://api.nasa.gov/
- type: Documentation
  url: https://github.com/nasa/apod-api
- type: GitHubOrg
  url: https://github.com/nasa
- type: Blog
  url: https://apod.nasa.gov/apod/
- type: Pricing
  url: https://api.nasa.gov/
- type: StatusPage
  url: https://status.api.nasa.gov/
- type: X
  url: https://x.com/apod
- type: Plans
  url: plans/nasa-apod-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nasa-apod-rate-limits.yml
- type: FinOps
  url: finops/nasa-apod-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

NASA APOD

Kin Score

APIs 1

NASA APOD APOD API

Pricing Plans 1

Nasa Apod Plans Pricing

Rate Limits 1

Nasa Apod Rate Limits

FinOps 1

Nasa Apod Finops

Semantic Vocabularies 1

Nasa Apod Context

Spectral Rules 1

NASA APOD API Rules