*** title: Trigger blocks overview updated: 2025-12-08T00:00:00.000Z slug: docs/postman-flows/reference/overview-trigger-blocks max-toc-depth: 2 ---------------- *Trigger blocks* include the following: * [**Output**](/docs/postman-flows/reference/blocks/output-module/) * [**Request**](/docs/postman-flows/reference/blocks/request/) * [**Response**](/docs/postman-flows/reference/blocks/response/) * [**Schedule**](/docs/postman-flows/reference/blocks/schedule/) * [**Start**](/docs/postman-flows/reference/blocks/start/)