--- title: Building a Multi-Agent System in Python | daily.dev description: A step-by-step tutorial for building a multi-agent travel planning system in Python using the OpenAI API via OpenRouter. Four specialized agents are created... canonical: https://daily.dev/posts/building-a-multi-agent-system-in-python-5m2zvwmqw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building a Multi-Agent System in Python | daily.dev og:description: A step-by-step tutorial for building a multi-agent travel planning system in Python using the OpenAI API via OpenRouter. Four specialized agents are created... og:url: https://daily.dev/posts/building-a-multi-agent-system-in-python-5m2zvwmqw og:image: https://api.daily.dev/og/posts/5m2zVwMqW.png og:image:alt: Building a Multi-Agent System in Python og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building a Multi-Agent System in Python **[Towards Data Science](https://daily.dev/sources/tds)** · 14 min read · 0 upvotes · 0 comments ## Summary A step-by-step tutorial for building a multi-agent travel planning system in Python using the OpenAI API via OpenRouter. Four specialized agents are created using OOP — a Research Agent, Activity Planning Agent, Budget Agent, and Final Travel Assistant — each handling a distinct part of the workflow and passing results sequentially to the next agent. The tutorial covers project setup, the Agent class design, user input collection, and the chained multi-agent workflow, ending with a sample output of a complete family travel itinerary. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Build Your First Multi-Agent AI System in Python and LangGraph](https://daily.dev/posts/how-to-build-your-first-multi-agent-ai-system-in-python-and-langgraph-pz0gokapb) · freeCodeCamp · 3 upvotes · 0 comments - [How to Build a Multi-Agent Research Assistant in Python](https://daily.dev/posts/how-to-build-a-multi-agent-research-assistant-in-python-tywqotoko) · Machine Learning Mastery · 2 upvotes · 0 comments - [Building AI Agents in Python](https://daily.dev/posts/building-ai-agents-in-python-d6gjflukc) · Planet Python · 1 upvotes · 1 comments - [The Ultimate Beginners’ Guide to Building an AI Agent in Python](https://daily.dev/posts/the-ultimate-beginners-guide-to-building-an-ai-agent-in-python-dkhiab38j) · Towards Data Science · 0 upvotes · 0 comments --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#python](https://daily.dev/tags/python), [#openai](https://daily.dev/tags/openai), [#ai-agents](https://daily.dev/tags/ai-agents) [View this post on daily.dev](https://daily.dev/posts/building-a-multi-agent-system-in-python-5m2zvwmqw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building a Multi-Agent System in Python","url":"https://daily.dev/posts/building-a-multi-agent-system-in-python-5m2zvwmqw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-a-multi-agent-system-in-python-5m2zvwmqw"},"datePublished":"2026-06-07T14:01:35.588Z","dateModified":"2026-06-07T14:01:59.868Z","description":"A step-by-step tutorial for building a multi-agent travel planning system in Python using the OpenAI API via OpenRouter. 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