JSONPlaceholder Posts API

openapi: 3.0.3
info:
  title: JSONPlaceholder REST Albums Posts API
  description: 'JSONPlaceholder is a free, no-auth fake REST API for prototyping, testing, and teaching. It exposes six relational resources — posts, comments, albums, photos, todos, and users — over standard REST routes (GET, POST, PUT, PATCH, DELETE). Write operations are simulated: the service responds as though the change succeeded, but no data is persisted on the server. The service is powered by the open-source json-server engine, also by typicode.'
  version: 1.0.0
  contact:
    name: typicode
    url: https://github.com/typicode/jsonplaceholder
  license:
    name: MIT
    url: https://github.com/typicode/jsonplaceholder/blob/master/LICENSE
  x-generated-from: documentation
  x-last-validated: '2026-05-29'
servers:
- url: https://jsonplaceholder.typicode.com
  description: Public production endpoint (no authentication required)
tags:
- name: Posts
  description: 100 sample blog posts owned by users
paths:
  /posts:
    get:
      operationId: listPosts
      summary: JSONPlaceholder List Posts
      description: Returns all 100 sample posts. Supports filtering by any field via query parameters (e.g. `?userId=1`).
      tags:
      - Posts
      parameters:
      - name: userId
        in: query
        description: Filter posts by owning user id.
        required: false
        schema:
          type: integer
        example: 1
      - name: id
        in: query
        description: Filter posts by post id.
        required: false
        schema:
          type: integer
        example: 1
      responses:
        '200':
          description: Array of posts.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Post'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    post:
      operationId: createPost
      summary: JSONPlaceholder Create Post
      description: Creates a new post. Returns the created post with a generated id, but no data is actually persisted on the server.
      tags:
      - Posts
      requestBody:
        required: true
        description: New post payload.
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostInput'
      responses:
        '201':
          description: Created post (simulated, not persisted).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Post'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /posts/{id}:
    parameters:
    - name: id
      in: path
      required: true
      description: Post identifier (1-100).
      schema:
        type: integer
      example: 1
    get:
      operationId: getPost
      summary: JSONPlaceholder Get Post
      description: Returns a single post by id.
      tags:
      - Posts
      responses:
        '200':
          description: A single post.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Post'
        '404':
          description: Post not found.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    put:
      operationId: replacePost
      summary: JSONPlaceholder Replace Post
      description: Replaces a post in full. Returns the updated post but no data is actually persisted on the server.
      tags:
      - Posts
      requestBody:
        required: true
        description: Full replacement payload.
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Post'
      responses:
        '200':
          description: Updated post (simulated, not persisted).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Post'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    patch:
      operationId: updatePost
      summary: JSONPlaceholder Update Post
      description: Partially updates a post. Returns the merged post but no data is actually persisted on the server.
      tags:
      - Posts
      requestBody:
        required: true
        description: Partial update payload.
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostInput'
      responses:
        '200':
          description: Updated post (simulated, not persisted).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Post'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      operationId: deletePost
      summary: JSONPlaceholder Delete Post
      description: Deletes a post. Returns an empty object but no data is actually deleted on the server.
      tags:
      - Posts
      responses:
        '200':
          description: Deletion accepted (simulated, not persisted).
          content:
            application/json:
              schema:
                type: object
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /posts/{id}/comments:
    parameters:
    - name: id
      in: path
      required: true
      description: Post identifier.
      schema:
        type: integer
      example: 1
    get:
      operationId: listPostComments
      summary: JSONPlaceholder List Post Comments
      description: Returns all comments belonging to a single post.
      tags:
      - Posts
      responses:
        '200':
          description: Array of comments for the post.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Comment'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /users/{id}/posts:
    parameters:
    - name: id
      in: path
      required: true
      description: User identifier.
      schema:
        type: integer
      example: 1
    get:
      operationId: listUserPosts
      summary: JSONPlaceholder List User Posts
      description: Returns all posts authored by a single user.
      tags:
      - Posts
      responses:
        '200':
          description: Array of posts for the user.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Post'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    Post:
      type: object
      description: A sample blog post owned by a user.
      required:
      - id
      - userId
      - title
      - body
      properties:
        id:
          type: integer
          description: Unique post identifier (1-100).
          example: 1
        userId:
          type: integer
          description: Identifier of the user who authored the post (1-10).
          example: 1
        title:
          type: string
          description: Post title.
          example: sunt aut facere repellat provident occaecati excepturi optio reprehenderit
        body:
          type: string
          description: Post body / content.
          example: quia et suscipit suscipit recusandae consequuntur expedita et cum
    PostInput:
      type: object
      description: Payload for creating or partially updating a post.
      properties:
        userId:
          type: integer
          description: Identifier of the user who authored the post.
          example: 1
        title:
          type: string
          description: Post title.
          example: My New Post
        body:
          type: string
          description: Post body / content.
          example: This is the body of my new post.
    Comment:
      type: object
      description: A sample comment attached to a post.
      required:
      - id
      - postId
      - name
      - email
      - body
      properties:
        id:
          type: integer
          description: Unique comment identifier (1-500).
          example: 1
        postId:
          type: integer
          description: Identifier of the post this comment belongs to.
          example: 1
        name:
          type: string
          description: Display name / subject of the comment.
          example: id labore ex et quam laborum
        email:
          type: string
          format: email
          description: Email address of the commenter.
          example: Eliseo@gardner.biz
        body:
          type: string
          description: Comment body text.
          example: laudantium enim quasi est quidem magnam voluptate ipsam eos tempora quo necessitatibus