http://petstore.swagger.io/?url=https://kaleidoscope-survey-api.cmix.com/swagger.json#/

• POST
  ​/surveys​/{surveyId}​/formulas
  Create formulas for a survey
• GET
  ​/surveys​/{surveyId}​/formulas​/{formulaId}
  Get a formula for a survey by Id
• PATCH
  ​/surveys​/{surveyId}​/formulas​/{formulaId}
  Update a formula for a survey by Id
• DELETE
  ​/surveys​/{surveyId}​/formulas​/{formulaId}
  Delete a formula for a survey by Id
• GET
  ​/surveys​/{surveyId}​/variables​/{variableId}​/formulas
  Get formulas for a variable by Id
• GET
  ​/surveys​/{surveyId}​/sections​/{sectionId}​/formulas
  Get formulas for a section by Id
• GET
  ​/surveys​/{surveyId}​/sections​/{sectionId}​/pages​/{pageId}​/formulas
  Get formulas for a page by Id
• GET
  ​/surveys​/{surveyId}​/sections​/{sectionId}​/pages​/{pageId}​/questions​/{questionId}​/formulas
  Get formulas for a question by Id