Formbricks
Formbricks is an open-source experience management and survey platform (a privacy-first Typeform / Qualtrics alternative). Its REST API lets you create and manage surveys, collect and query responses, manage contacts and their attributes, and wire up webhooks, with a Public Client API (no auth) for survey delivery and a Management API authenticated with an x-api-key header.
APIs
Formbricks Surveys API
List, create, retrieve, update, and delete surveys, plus generate single-use survey links, through the Management API under /api/v2/management/surveys.
Formbricks Responses API
Create, list, filter by survey, update, and delete survey responses. Responses carry per-question data, time-to-complete (ttc), finished state, and meta (source, url, userAgent,...
Formbricks Contacts and Attributes API
List and retrieve contacts, bulk-upsert contacts with their attributes, and manage contact attribute keys that define the segmentation schema for an environment.
Formbricks Webhooks API
List, create, and delete webhooks that fire real-time HTTP notifications on responseCreated, responseUpdated, and responseFinished triggers, optionally scoped to specific survey...
Formbricks Management API
Account and configuration surface - the Me endpoint that returns the environment an API key belongs to, and Action Class management for defining the code and no-code actions tha...