Reddit Subreddits API

openapi: 3.1.0
info:
  title: Reddit Ads Account Subreddits API
  description: The Reddit Ads API allows advertisers and their partners to programmatically create, edit, and manage advertising campaigns and audiences on the Reddit platform. It provides endpoints for managing ad accounts, campaigns, ad groups, ads, creatives, targeting, custom audiences, conversion pixels, and reporting. Authentication is handled via OAuth 2.0, and rate limits are set at one request per second.
  version: '3'
  contact:
    name: Reddit Ads Support
    url: https://business.reddithelp.com/s/article/Reddit-Ads-API
  termsOfService: https://business.reddithelp.com/s/article/Reddit-Ads-API-Terms
servers:
- url: https://ads-api.reddit.com/api/v3
  description: Reddit Ads API v3 Production Server
security:
- oauth2: []
tags:
- name: Subreddits
  description: Endpoints for managing and retrieving information about subreddits, including subscription, creation, rules, and settings.
paths:
  /r/{subreddit}/about:
    get:
      operationId: getSubredditAbout
      summary: Get Subreddit Information
      description: Returns information about the specified subreddit, including subscriber count, description, rules, and settings.
      tags:
      - Subreddits
      parameters:
      - $ref: '#/components/parameters/subreddit'
      responses:
        '200':
          description: Subreddit information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Subreddit'
        '404':
          description: Subreddit not found
  /r/{subreddit}/about/rules:
    get:
      operationId: getSubredditRules
      summary: Get Subreddit Rules
      description: Returns the rules defined for the specified subreddit.
      tags:
      - Subreddits
      parameters:
      - $ref: '#/components/parameters/subreddit'
      responses:
        '200':
          description: Subreddit rules
          content:
            application/json:
              schema:
                type: object
                properties:
                  rules:
                    type: array
                    items:
                      $ref: '#/components/schemas/SubredditRule'
                  site_rules:
                    type: array
                    items:
                      type: string
  /subreddits/mine/subscriber:
    get:
      operationId: getMySubreddits
      summary: Get Subscribed Subreddits
      description: Returns a listing of subreddits the authenticated user is subscribed to. Requires the mysubreddits OAuth scope.
      tags:
      - Subreddits
      parameters:
      - $ref: '#/components/parameters/after'
      - $ref: '#/components/parameters/before'
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/count'
      responses:
        '200':
          description: Listing of subscribed subreddits
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Listing'
  /api/subscribe:
    post:
      operationId: subscribe
      summary: Subscribe or Unsubscribe From a Subreddit
      description: Subscribes to or unsubscribes from a subreddit. Requires the subscribe OAuth scope.
      tags:
      - Subreddits
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - action
              - sr_name
              properties:
                action:
                  type: string
                  description: The subscription action to perform.
                  enum:
                  - sub
                  - unsub
                sr_name:
                  type: string
                  description: The name of the subreddit.
                skip_initial_defaults:
                  type: boolean
                  description: Whether to skip adding default subreddits for new accounts.
      responses:
        '200':
          description: Subscription updated
components:
  schemas:
    Thing:
      type: object
      description: A Reddit thing is the base object type. All Reddit objects (comments, links, subreddits, etc.) are things with a kind and data payload.
      properties:
        kind:
          type: string
          description: The kind identifier (t1 for comment, t2 for account, t3 for link, t4 for message, t5 for subreddit, t6 for award).
          enum:
          - t1
          - t2
          - t3
          - t4
          - t5
          - t6
        data:
          type: object
          description: The thing's data payload, varying by kind.
    SubredditRule:
      type: object
      description: Represents a rule defined for a subreddit.
      properties:
        kind:
          type: string
          description: The rule kind (link, comment, or all).
          enum:
          - link
          - comment
          - all
        short_name:
          type: string
          description: A short name for the rule.
        description:
          type: string
          description: The full description of the rule (markdown).
        violation_reason:
          type: string
          description: The reason shown when content is reported for this rule.
        created_utc:
          type: number
          format: double
          description: The Unix timestamp of when the rule was created.
        priority:
          type: integer
          description: The display priority of the rule.
    Subreddit:
      type: object
      description: Represents a Reddit subreddit community with its configuration and metadata.
      properties:
        kind:
          type: string
          description: The thing kind, always t5.
        data:
          type: object
          properties:
            id:
              type: string
              description: The subreddit's unique ID36.
            display_name:
              type: string
              description: The subreddit's display name without the r/ prefix.
            title:
              type: string
              description: The subreddit's title.
            public_description:
              type: string
              description: The subreddit's public description shown in search results.
            description:
              type: string
              description: The subreddit's full sidebar description (markdown).
            subscribers:
              type: integer
              description: The number of subscribers.
            accounts_active:
              type: integer
              description: The approximate number of users currently active.
            created_utc:
              type: number
              format: double
              description: The Unix timestamp of when the subreddit was created.
            over18:
              type: boolean
              description: Whether the subreddit is marked as NSFW.
            subreddit_type:
              type: string
              description: The subreddit's access type.
              enum:
              - public
              - private
              - restricted
              - gold_restricted
              - archived
            url:
              type: string
              description: The subreddit's URL path (e.g., /r/example/).
            icon_img:
              type: string
              format: uri
              description: URL of the subreddit's icon image.
            banner_img:
              type: string
              format: uri
              description: URL of the subreddit's banner image.
    Listing:
      type: object
      description: A Reddit listing is a paginated collection of things. Listings contain a data object with children and pagination information.
      properties:
        kind:
          type: string
          description: The kind identifier, always "Listing".
          enum:
          - Listing
        data:
          type: object
          properties:
            after:
              type: string
              nullable: true
              description: The fullname of the next item for forward pagination.
            before:
              type: string
              nullable: true
              description: The fullname of the previous item for backward pagination.
            dist:
              type: integer
              description: The number of items in this listing.
            modhash:
              type: string
              description: A modhash for CSRF protection.
            children:
              type: array
              description: The list of things in this listing.
              items:
                $ref: '#/components/schemas/Thing'
  parameters:
    after:
      name: after
      in: query
      description: The fullname of a thing used as an anchor for pagination. Returns results after this item.
      schema:
        type: string
    count:
      name: count
      in: query
      description: A positive integer indicating the number of items already seen in this listing, used for pagination numbering.
      schema:
        type: integer
        minimum: 0
    before:
      name: before
      in: query
      description: The fullname of a thing used as an anchor for pagination. Returns results before this item.
      schema:
        type: string
    subreddit:
      name: subreddit
      in: path
      required: true
      description: The name of the subreddit.
      schema:
        type: string
    limit:
      name: limit
      in: query
      description: The maximum number of items to return (default 25, max 100).
      schema:
        type: integer
        default: 25
        minimum: 1
        maximum: 100
  securitySchemes:
    oauth2:
      type: oauth2
      description: Reddit Ads API uses OAuth 2.0 for authentication. Access tokens are obtained via the authorization code flow.
      flows:
        authorizationCode:
          authorizationUrl: https://www.reddit.com/api/v1/authorize
          tokenUrl: https://www.reddit.com/api/v1/access_token
          scopes:
            ads: Access to ads management endpoints
externalDocs:
  description: Reddit Ads API Documentation
  url: https://ads-api.reddit.com/docs/