Build flows overview

Postman Flows lets you automate and visualize API workflows using modular building blocks. This guide introduces you to creating, connecting, and testing flows using flow modules and actions.

Build your first flow

If you're new to building flows, you can do the following:

Try the "Hello, world" flow to get started quickly.
Learn how to create, connect, and run blocks.
Work with date and time in your flows.

Working with blocks

Each flow is made of blocks that perform specific tasks. You can do the following:

Chain blocks to pass data between them.
Get or set variables to manage dynamic values.
Filter data using conditions.
Build branching logic into flows that apply conditions to data.
Build loops to tackle iteration-heavy tasks.

Reuse flows within other flows

A flow with a snapshot and outputs can be called from within other flows, from a Flow module block. Encapsulating all the original flow's blocks in a single module makes your action simpler and easier to grasp.

Deploy flows as actions

Another way to make your flow reusable is to deploy it as an action with a unique cloud-hosted URL. This means actions can integrate with external services and interact with AI applications through MCP. Actions receive HTTP requests and send out structured responses.