FormAssembly OAuth2 API

openapi: 3.0.3
info:
  title: FormAssembly REST Admin OAuth2 API
  description: 'REST API for managing FormAssembly forms, responses, themes, connectors, form elements, and account data. Supports JSON, XML, CSV, and ZIP response formats. OAuth2 authentication is required for all requests. Endpoints vary by deployment edition including Developer Sandbox, FormAssembly.com cloud, and self-hosted Enterprise instances.

    '
  version: 1.0.0
  contact:
    name: FormAssembly Developer Hub
    url: https://help.formassembly.com/help/working-with-the-formassembly-api
  termsOfService: https://www.formassembly.com/terms-of-service/
  license:
    name: Proprietary
servers:
- url: https://app.formassembly.com
  description: FormAssembly.com Cloud
- url: https://developer.formassembly.com
  description: Developer Sandbox
- url: https://{instance_name}.tfaforms.net
  description: Enterprise / Teams / Government Instance
  variables:
    instance_name:
      default: yourinstance
      description: Your FormAssembly enterprise instance name
security:
- oauth2: []
tags:
- name: OAuth2
  description: OAuth2 authorization code flow for obtaining access tokens
paths:
  /oauth/login:
    get:
      operationId: initiateOAuth2Login
      summary: Initiate OAuth2 authorization
      description: Redirect users here to begin the OAuth2 authorization code flow.
      tags:
      - OAuth2
      parameters:
      - name: type
        in: query
        required: true
        schema:
          type: string
          enum:
          - web
      - name: client_id
        in: query
        required: true
        schema:
          type: string
        description: Your registered OAuth2 client ID
      - name: redirect_uri
        in: query
        required: true
        schema:
          type: string
          format: uri
        description: Callback URI registered with your application
      - name: response_type
        in: query
        required: true
        schema:
          type: string
          enum:
          - code
      responses:
        '302':
          description: Redirect to FormAssembly login page
      security: []
  /oauth/access_token:
    post:
      operationId: requestAccessToken
      summary: Exchange authorization code for access token
      description: Exchange the authorization code received after login for an OAuth2 access token.
      tags:
      - OAuth2
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - grant_type
              - type
              - client_id
              - client_secret
              - redirect_uri
              - code
              properties:
                grant_type:
                  type: string
                  enum:
                  - authorization_code
                type:
                  type: string
                  enum:
                  - web_server
                client_id:
                  type: string
                client_secret:
                  type: string
                redirect_uri:
                  type: string
                  format: uri
                code:
                  type: string
                  description: Authorization code from callback
      responses:
        '200':
          description: Access token issued
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token:
                    type: string
                  expires_in:
                    type: integer
                  scope:
                    type: string
                  refresh_token:
                    type: string
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security: []
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        status:
          type: string
          enum:
          - error
        message:
          type: string
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://app.formassembly.com/oauth/login
          tokenUrl: https://app.formassembly.com/oauth/access_token
          scopes: {}
externalDocs:
  description: FormAssembly API Documentation
  url: https://help.formassembly.com/help/working-with-the-formassembly-api