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Developer Documentation

apptor flow

Build, run, and monitor AI-powered workflows with a visual node designer, 20+ built-in node types, and a complete REST API.

Get Started API Reference Node Reference

Apptor Flow workflow designer — canvas with connected nodes

20+Node Types

11API Resources

6Doc Sections

REST + SSE + WSProtocol Support

Micronaut 4.4 · Java 21

Actor-Based Execution Engine

Angular 18 + GoJS Designer

LangChain4j · RAG · A2UI

Multi-Tenant · OIDC · API Keys

Documentation

Everything you need to build, integrate, and operate apptor flow.

Product

Platform concepts, use-cases, feature catalog and glossary.

Platform overview
Core concepts
Feature catalog
Glossary

Architecture

Every module, every engine decision — full system deep-dive.

26-module backend
Actor execution engine
OIDC + API key auth
Variable system

API Reference

Complete endpoint catalog with schemas, auth and examples.

Authentication
Workflows & executions
Users & organizations
Error codes

Node Reference

20+ node types — properties, variable syntax, JSON examples.

Flow control nodes
AI task nodes
Integration nodes
JUEL & template vars

Sample Flows

Import-ready workflows with step-by-step annotations.

AI support bot
Email routing
Data pipeline
Full JSON import

UI Guide

Visual designer walkthrough and all platform interface features.

Workflow designer
Properties panel
Live execution logs
A2UI components

New to apptor flow?

Start with Getting Started to learn core concepts, then explore node types and sample flows to build your first workflow in minutes.

Read Getting Started