FinCalc API We have launched a public REST API with full documentation which allows third parties to integrate with the FinCalc system. API Documentation Postman Collection Integrate with us To discuss an integration with FinCalc using our API and receive access keys, please complete the form below. API Form First NameLast NameEmailCompany NamePhone NumberPlease explain your proposed integration with the FinCalc APIBy submitting this form you agree to our Legal NoticesSubmit