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OpenAPI Specification
openapi: 3.0.3
info:
title: Unsplash Collections Topics API
description: 'The Unsplash API provides access to the world''s largest open collection of high-quality, freely usable photos. Build photo-powered applications with search, random photos, user profiles, collections, topics, and statistics. Authentication uses Client-ID for public access or OAuth 2.0 Bearer tokens for user-authenticated operations. Rate limits: 50 req/hr (demo), 1000 req/hr (production). Downloads must be tracked via the /photos/:id/download endpoint per Unsplash API guidelines.'
version: 1.0.0
contact:
name: Unsplash Developers
url: https://unsplash.com/developers
termsOfService: https://unsplash.com/api-terms
servers:
- url: https://api.unsplash.com
description: Unsplash API
security:
- ClientID: []
tags:
- name: Topics
description: Editorial topic operations
paths:
/topics:
get:
operationId: listTopics
summary: List Topics
description: Get a list of editorial topics.
tags:
- Topics
parameters:
- name: ids
in: query
schema:
type: string
description: Comma-separated list of topic IDs or slugs to filter
- name: page
in: query
schema:
type: integer
default: 1
- name: per_page
in: query
schema:
type: integer
minimum: 1
maximum: 30
default: 10
- name: order_by
in: query
schema:
type: string
enum:
- featured
- latest
- oldest
- position
default: position
responses:
'200':
description: List of topics
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Topic'
'401':
$ref: '#/components/responses/Unauthorized'
/topics/{id_or_slug}:
get:
operationId: getTopic
summary: Get a Topic
description: Retrieve a single topic by ID or slug.
tags:
- Topics
parameters:
- name: id_or_slug
in: path
required: true
schema:
type: string
description: Topic ID or slug
responses:
'200':
description: Topic details
content:
application/json:
schema:
$ref: '#/components/schemas/Topic'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/topics/{id_or_slug}/photos:
get:
operationId: getTopicPhotos
summary: Get Topic Photos
description: Retrieve photos for a topic.
tags:
- Topics
parameters:
- name: id_or_slug
in: path
required: true
schema:
type: string
description: Topic ID or slug
- name: page
in: query
schema:
type: integer
default: 1
- name: per_page
in: query
schema:
type: integer
minimum: 1
maximum: 30
default: 10
- name: orientation
in: query
schema:
type: string
enum:
- landscape
- portrait
- squarish
- name: order_by
in: query
schema:
type: string
enum:
- latest
- oldest
- popular
- views
- downloads
default: latest
responses:
'200':
description: Photos in topic
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Photo'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
components:
responses:
Unauthorized:
description: Missing or invalid authentication
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
NotFound:
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
schemas:
Topic:
type: object
description: An Unsplash editorial topic
properties:
id:
type: string
slug:
type: string
description: URL-friendly identifier
title:
type: string
description:
type: string
published_at:
type: string
format: date-time
updated_at:
type: string
format: date-time
starts_at:
type: string
format: date-time
ends_at:
type:
- string
- 'null'
format: date-time
featured:
type: boolean
total_photos:
type: integer
status:
type: string
enum:
- open
- closed
cover_photo:
$ref: '#/components/schemas/Photo'
links:
type: object
properties:
self:
type: string
format: uri
html:
type: string
format: uri
photos:
type: string
format: uri
Photo:
type: object
description: An Unsplash photo object
properties:
id:
type: string
description: Unique photo identifier
example: Dwu85P9SOIk
created_at:
type: string
format: date-time
description: When the photo was uploaded
updated_at:
type: string
format: date-time
description: When the photo was last updated
promoted_at:
type:
- string
- 'null'
format: date-time
description: When the photo was promoted to editorial feed
width:
type: integer
description: Photo width in pixels
example: 5616
height:
type: integer
description: Photo height in pixels
example: 3744
color:
type: string
description: Dominant color hex code
example: '#6E633A'
blur_hash:
type: string
description: BlurHash for placeholder preview
example: L~I64nofRjof%MQZWBS$Mxnhx]t6
description:
type:
- string
- 'null'
description: Photographer-provided description
alt_description:
type:
- string
- 'null'
description: Auto-generated alt text for accessibility
likes:
type: integer
description: Number of likes
downloads:
type: integer
description: Total download count
views:
type: integer
description: Total view count
liked_by_user:
type: boolean
description: Whether the current authenticated user liked this photo
urls:
type: object
description: Image URLs at different sizes
properties:
raw:
type: string
format: uri
description: Original image URL with no transformations
full:
type: string
format: uri
description: Full-quality image (large width, no compression)
regular:
type: string
format: uri
description: 1080px wide image
small:
type: string
format: uri
description: 400px wide image
thumb:
type: string
format: uri
description: 200px wide thumbnail
small_s3:
type: string
format: uri
description: Small S3-hosted image
links:
type: object
description: API and site links for the photo
properties:
self:
type: string
format: uri
html:
type: string
format: uri
download:
type: string
format: uri
download_location:
type: string
format: uri
user:
$ref: '#/components/schemas/UserSummary'
location:
type: object
description: Location where the photo was taken
properties:
name:
type:
- string
- 'null'
city:
type:
- string
- 'null'
country:
type:
- string
- 'null'
position:
type: object
properties:
latitude:
type:
- number
- 'null'
longitude:
type:
- number
- 'null'
tags:
type: array
items:
type: object
properties:
type:
type: string
title:
type: string
exif:
type: object
description: Camera EXIF metadata
properties:
make:
type:
- string
- 'null'
model:
type:
- string
- 'null'
name:
type:
- string
- 'null'
exposure_time:
type:
- string
- 'null'
aperture:
type:
- string
- 'null'
focal_length:
type:
- string
- 'null'
iso:
type:
- integer
- 'null'
Error:
type: object
properties:
errors:
type: array
items:
type: string
description: Array of human-readable error messages
UserSummary:
type: object
description: Abbreviated user object for embedding in photo/collection responses
properties:
id:
type: string
username:
type: string
name:
type: string
portfolio_url:
type:
- string
- 'null'
format: uri
bio:
type:
- string
- 'null'
location:
type:
- string
- 'null'
total_likes:
type: integer
total_photos:
type: integer
total_collections:
type: integer
profile_image:
type: object
properties:
small:
type: string
format: uri
medium:
type: string
format: uri
large:
type: string
format: uri
links:
type: object
properties:
self:
type: string
format: uri
html:
type: string
format: uri
photos:
type: string
format: uri
likes:
type: string
format: uri
securitySchemes:
ClientID:
type: apiKey
in: header
name: Authorization
description: 'Use `Authorization: Client-ID {YOUR_ACCESS_KEY}` for public API access. Alternatively pass as query param: `?client_id={YOUR_ACCESS_KEY}`'
OAuth2:
type: oauth2
flows:
authorizationCode:
authorizationUrl: https://unsplash.com/oauth/authorize
tokenUrl: https://unsplash.com/oauth/token
scopes:
public: Read public data (default)
read_user: Read user profile data
write_user: Write user profile data
read_photos: Read photo data
write_photos: Write photo data (update metadata)
write_likes: Like/unlike photos
write_collections: Create, update, delete collections
read_collections: Read collection data