How to Build AI Agent Communication Systems with REST APIs and n8n Workflows
TL;DR This guide shows you how to build AI agent communication systems using n8n workflows and REST APIs. You’ll learn to create workflows where AI agents receive requests via HTTP endpoints, process them using OpenAI or Anthropic models, and return structured responses that other systems can consume. The core pattern involves three components: a Webhook node listening on port 5678 for incoming requests, an AI Agent node that processes the request using your chosen language model, and an HTTP Response node that returns formatted JSON. This architecture lets you expose AI capabilities as REST endpoints that any application can call. ...
