openapi: 3.0.1
info:
  title: Formbricks API
  description: >-
    REST API for Formbricks, the open-source experience management and survey
    platform. The Management API (paths under /v1/management and /v2/management)
    requires a personal API key passed in the x-api-key header and gives full
    access to surveys, responses, contacts, contact attribute keys, action
    classes, webhooks, and account info. The Public Client API
    (/v1/client/{environmentId}) is unauthenticated and is used by survey
    front-ends to create displays and responses.
  termsOfService: https://formbricks.com/terms
  contact:
    name: Formbricks
    url: https://formbricks.com
  license:
    name: AGPL-3.0
    url: https://github.com/formbricks/formbricks/blob/main/LICENSE
  version: '2.0'
servers:
  - url: https://app.formbricks.com/api
    description: Formbricks Cloud
paths:
  /v1/me:
    get:
      operationId: getMe
      tags:
        - Me
      summary: Retrieve account information
      description: Returns the environment and project that the supplied API key belongs to.
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: Account / environment information for the API key.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Me'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /v2/management/surveys:
    get:
      operationId: getSurveys
      tags:
        - Surveys
      summary: List surveys
      description: Returns a paginated list of surveys in the environment.
      security:
        - apiKeyAuth: []
      parameters:
        - $ref: '#/components/parameters/Limit'
        - $ref: '#/components/parameters/Skip'
      responses:
        '200':
          description: A list of surveys.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Survey'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createSurvey
      tags:
        - Surveys
      summary: Create a survey
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SurveyInput'
      responses:
        '201':
          description: The created survey.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Survey'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /v2/management/surveys/{id}:
    parameters:
      - $ref: '#/components/parameters/SurveyId'
    get:
      operationId: getSurvey
      tags:
        - Surveys
      summary: Get a survey
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The requested survey.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Survey'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateSurvey
      tags:
        - Surveys
      summary: Update a survey
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SurveyInput'
      responses:
        '200':
          description: The updated survey.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Survey'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteSurvey
      tags:
        - Surveys
      summary: Delete a survey
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The deleted survey.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Survey'
        '404':
          $ref: '#/components/responses/NotFound'
  /v2/management/surveys/{id}/contact-links/segments/{segmentId}:
    parameters:
      - $ref: '#/components/parameters/SurveyId'
      - name: segmentId
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getSurveyContactLinks
      tags:
        - Surveys
      summary: Generate single-use survey links for a segment
      description: >-
        Returns personalized single-use survey links for every contact in the
        given segment.
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: A list of personalized survey links.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      type: object
                      properties:
                        contactId:
                          type: string
                        surveyUrl:
                          type: string
                          format: uri
  /v2/management/responses:
    get:
      operationId: getResponses
      tags:
        - Responses
      summary: List responses
      description: Returns responses, optionally filtered by surveyId.
      security:
        - apiKeyAuth: []
      parameters:
        - name: surveyId
          in: query
          schema:
            type: string
        - $ref: '#/components/parameters/Limit'
        - $ref: '#/components/parameters/Skip'
      responses:
        '200':
          description: A list of responses.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Response'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createResponse
      tags:
        - Responses
      summary: Create a response
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ResponseInput'
      responses:
        '201':
          description: The created response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Response'
        '400':
          $ref: '#/components/responses/BadRequest'
  /v2/management/responses/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getResponse
      tags:
        - Responses
      summary: Get a response
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The requested response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Response'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateResponse
      tags:
        - Responses
      summary: Update a response
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ResponseInput'
      responses:
        '200':
          description: The updated response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Response'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteResponse
      tags:
        - Responses
      summary: Delete a response
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The deleted response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Response'
        '404':
          $ref: '#/components/responses/NotFound'
  /v2/management/contacts:
    get:
      operationId: getContacts
      tags:
        - Contacts
      summary: List contacts
      security:
        - apiKeyAuth: []
      parameters:
        - $ref: '#/components/parameters/Limit'
        - $ref: '#/components/parameters/Skip'
      responses:
        '200':
          description: A list of contacts.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Contact'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /v2/management/contacts/bulk:
    put:
      operationId: bulkUpsertContacts
      tags:
        - Contacts
      summary: Bulk create or update contacts
      description: Upserts up to several hundred contacts and their attributes in one call.
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - contacts
              properties:
                contacts:
                  type: array
                  items:
                    type: object
                    properties:
                      attributes:
                        type: object
                        additionalProperties:
                          type: string
                        description: >-
                          Key/value attributes keyed by contact attribute key
                          (must include a userId or email key for identification).
      responses:
        '200':
          description: Bulk upsert result.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      processed:
                        type: integer
  /v2/management/contacts/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getContact
      tags:
        - Contacts
      summary: Get a contact
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The requested contact.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Contact'
        '404':
          $ref: '#/components/responses/NotFound'
  /v2/management/contact-attribute-keys:
    get:
      operationId: getContactAttributeKeys
      tags:
        - Contacts
      summary: List contact attribute keys
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: A list of contact attribute keys.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ContactAttributeKey'
    post:
      operationId: createContactAttributeKey
      tags:
        - Contacts
      summary: Create a contact attribute key
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - key
              properties:
                key:
                  type: string
                name:
                  type: string
                description:
                  type: string
      responses:
        '201':
          description: The created contact attribute key.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/ContactAttributeKey'
  /v1/management/action-classes:
    get:
      operationId: getActionClasses
      tags:
        - Action Classes
      summary: List action classes
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: A list of action classes.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ActionClass'
    post:
      operationId: createActionClass
      tags:
        - Action Classes
      summary: Create an action class
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ActionClassInput'
      responses:
        '201':
          description: The created action class.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/ActionClass'
  /v1/management/action-classes/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    delete:
      operationId: deleteActionClass
      tags:
        - Action Classes
      summary: Delete an action class
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The deleted action class.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/ActionClass'
        '404':
          $ref: '#/components/responses/NotFound'
  /v1/webhooks:
    get:
      operationId: getWebhooks
      tags:
        - Webhooks
      summary: List webhooks
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: A list of webhooks.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Webhook'
    post:
      operationId: createWebhook
      tags:
        - Webhooks
      summary: Create a webhook
      security:
        - apiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WebhookInput'
      responses:
        '201':
          description: The created webhook.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Webhook'
        '400':
          $ref: '#/components/responses/BadRequest'
  /v1/webhooks/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getWebhook
      tags:
        - Webhooks
      summary: Get a webhook
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The requested webhook.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Webhook'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteWebhook
      tags:
        - Webhooks
      summary: Delete a webhook
      security:
        - apiKeyAuth: []
      responses:
        '200':
          description: The deleted webhook.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Webhook'
        '404':
          $ref: '#/components/responses/NotFound'
  /v1/client/{environmentId}/displays:
    parameters:
      - name: environmentId
        in: path
        required: true
        schema:
          type: string
    post:
      operationId: createDisplay
      tags:
        - Client
      summary: Create a display
      description: >-
        Public Client API. Marks a survey as displayed for a contact, optionally
        linking the display to a later response. No API key required.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - surveyId
              properties:
                surveyId:
                  type: string
                userId:
                  type: string
      responses:
        '200':
          description: The created display id.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      id:
                        type: string
  /v1/client/{environmentId}/responses:
    parameters:
      - name: environmentId
        in: path
        required: true
        schema:
          type: string
    post:
      operationId: createClientResponse
      tags:
        - Client
      summary: Create a response (Client API)
      description: >-
        Public Client API used by survey front-ends to submit a response. No API
        key required.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ResponseInput'
      responses:
        '200':
          description: The created response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Response'
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Personal API key generated in Formbricks under Settings > API Keys.
  parameters:
    Limit:
      name: limit
      in: query
      description: Maximum number of items to return.
      schema:
        type: integer
        default: 10
    Skip:
      name: skip
      in: query
      description: Number of items to skip for pagination.
      schema:
        type: integer
        default: 0
    SurveyId:
      name: id
      in: path
      required: true
      schema:
        type: string
  responses:
    BadRequest:
      description: The request body or parameters were invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: The API key is missing or invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Me:
      type: object
      properties:
        id:
          type: string
        type:
          type: string
          description: The type of object the key is scoped to (e.g. environment).
        environmentId:
          type: string
        projectId:
          type: string
        organizationId:
          type: string
    Survey:
      type: object
      properties:
        id:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        name:
          type: string
        type:
          type: string
          enum:
            - link
            - app
        environmentId:
          type: string
        status:
          type: string
          enum:
            - draft
            - inProgress
            - paused
            - completed
        questions:
          type: array
          description: Legacy question list, derived from blocks for backwards compatibility.
          items:
            type: object
        blocks:
          type: array
          description: Current block-based survey structure.
          items:
            type: object
        welcomeCard:
          type: object
        endings:
          type: array
          items:
            type: object
    SurveyInput:
      type: object
      required:
        - name
        - type
        - environmentId
      properties:
        name:
          type: string
        type:
          type: string
          enum:
            - link
            - app
        environmentId:
          type: string
        status:
          type: string
          enum:
            - draft
            - inProgress
            - paused
            - completed
        questions:
          type: array
          items:
            type: object
    Response:
      type: object
      properties:
        id:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        surveyId:
          type: string
        displayId:
          type: string
          nullable: true
        singleUseId:
          type: string
          nullable: true
        finished:
          type: boolean
        endingId:
          type: string
          nullable: true
        language:
          type: string
          nullable: true
        data:
          type: object
          additionalProperties: true
          description: Map of questionId to the submitted answer.
        variables:
          type: object
          additionalProperties: true
        ttc:
          type: object
          additionalProperties:
            type: number
          description: Time-to-complete in ms per question.
        meta:
          $ref: '#/components/schemas/ResponseMeta'
    ResponseInput:
      type: object
      required:
        - surveyId
        - data
      properties:
        surveyId:
          type: string
        finished:
          type: boolean
          default: false
        data:
          type: object
          additionalProperties: true
        variables:
          type: object
          additionalProperties: true
        ttc:
          type: object
          additionalProperties:
            type: number
        language:
          type: string
        meta:
          $ref: '#/components/schemas/ResponseMeta'
    ResponseMeta:
      type: object
      properties:
        source:
          type: string
        url:
          type: string
        userAgent:
          type: object
          additionalProperties: true
        country:
          type: string
        action:
          type: string
    Contact:
      type: object
      properties:
        id:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        environmentId:
          type: string
        attributes:
          type: object
          additionalProperties:
            type: string
    ContactAttributeKey:
      type: object
      properties:
        id:
          type: string
        key:
          type: string
        name:
          type: string
          nullable: true
        description:
          type: string
          nullable: true
        type:
          type: string
        environmentId:
          type: string
    ActionClass:
      type: object
      properties:
        id:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        name:
          type: string
        description:
          type: string
          nullable: true
        type:
          type: string
          enum:
            - code
            - noCode
        environmentId:
          type: string
    ActionClassInput:
      type: object
      required:
        - name
        - type
        - environmentId
      properties:
        name:
          type: string
        description:
          type: string
        type:
          type: string
          enum:
            - code
            - noCode
        environmentId:
          type: string
    Webhook:
      type: object
      properties:
        id:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        name:
          type: string
          nullable: true
        url:
          type: string
          format: uri
        source:
          type: string
          default: user
        environmentId:
          type: string
        triggers:
          type: array
          items:
            type: string
            enum:
              - responseCreated
              - responseUpdated
              - responseFinished
        surveyIds:
          type: array
          items:
            type: string
          description: Surveys the webhook is scoped to; empty applies to all surveys.
    WebhookInput:
      type: object
      required:
        - url
        - triggers
      properties:
        name:
          type: string
        url:
          type: string
          format: uri
        triggers:
          type: array
          items:
            type: string
            enum:
              - responseCreated
              - responseUpdated
              - responseFinished
        surveyIds:
          type: array
          items:
            type: string
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
        details:
          type: object
          additionalProperties: true
tags:
  - name: Me
    description: Account and environment information for an API key.
  - name: Surveys
    description: Create and manage surveys.
  - name: Responses
    description: Create, query, and manage survey responses.
  - name: Contacts
    description: Manage contacts and contact attribute keys.
  - name: Action Classes
    description: Define code and no-code actions that trigger in-product surveys.
  - name: Webhooks
    description: Real-time HTTP notifications for response events.
  - name: Client
    description: Public unauthenticated Client API used by survey front-ends.