FullStory Events API

openapi: 3.2.0
info:
  title: FullStory Server Events API
  description: The FullStory Server API is a RESTful API that enables developers to programmatically send user and event data to FullStory. It supports creating and updating individual users, batch importing users, sending server-side events, and batch importing events. The API uses JSON for request and response bodies and authenticates via API keys. Developers can use it to enrich FullStory session data with server-side context that is not available in the browser or mobile app.
  version: '2.0'
  contact:
    name: FullStory Support
    url: https://help.fullstory.com/
  termsOfService: https://www.fullstory.com/legal/terms-and-conditions/
servers:
- url: https://api.fullstory.com
  description: FullStory Production API Server
security:
- basicAuth: []
tags:
- name: Events
  description: Send custom server-side events to FullStory. Events can be associated with sessions and users, and include custom properties for behavioral analysis.
paths:
  /v2/events:
    post:
      operationId: createEvent
      summary: Create a single event
      description: Creates one custom event with the specified details. Events can be associated with a session and user. If use_most_recent is true, the most recent session within 30 minutes will be used. Custom properties can be attached and types are inferred automatically in v2.
      tags:
      - Events
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateEventRequest'
      responses:
        '200':
          description: Event created successfully
        '400':
          description: Invalid input provided
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized - invalid or missing API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    Error:
      type: object
      description: Standard error response from the FullStory API
      properties:
        code:
          type: integer
          description: HTTP status code
        message:
          type: string
          description: Human-readable error message
    CreateEventRequest:
      type: object
      required:
      - name
      description: Request body for creating a custom event in FullStory
      properties:
        name:
          type: string
          description: The name of the custom event
        timestamp:
          type: string
          format: date-time
          description: ISO 8601 timestamp for when the event occurred
        session:
          type: object
          description: Session association for the event
          properties:
            id:
              type: string
              description: The session identifier to associate the event with
            use_most_recent:
              type: boolean
              description: If true, the most recent session within 30 minutes will be used. If no recent session is found, the event is created without a session association.
        user:
          type: object
          description: User association for the event. Not accepted if session.id is provided since the session already identifies the user.
          properties:
            id:
              type: string
              description: The FullStory-assigned user ID
            uid:
              type: string
              description: The external user identifier
        properties:
          type: object
          description: Custom key-value properties for the event. Supports string, real, integer, boolean, array, and object types.
          additionalProperties: true
        schema:
          type: object
          description: Optional explicit type declarations for custom event properties
          additionalProperties: true
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: API key passed in the Authorization header using Basic authentication. Generate API keys from the FullStory app settings. Admin or Architect level keys are required for data retrieval and deletion operations.
externalDocs:
  description: FullStory Server API Documentation
  url: https://developer.fullstory.com/server/getting-started/