AI agent stack builder
Tell us what your agent should do, how technical you are and your budget, and get a recommended stack from the AgentScout directory, layer by layer, with a shareable stack card.
Free, no sign-up. Runs entirely in your browser: nothing you type is sent to AgentScout or any AI provider.
Loading the directory…
How picks are chosen
Every pick comes from the AgentScout directory of link-checked tools. Your answers filter the list (no-code, budget and open-source choices are strict), then tools that match your goal come first, followed by AgentScout weekly picks and GitHub stars where a project has them. Pricing labels are as each maker states them. For the model layer, compare prices in the AI API cost calculator and the agent run cost estimator.
FAQ
What is an AI agent stack?
The set of tools an AI agent runs on: the agent or framework itself, the model, memory and knowledge retrieval (RAG), connectors such as MCP servers, a sandbox to run code safely, and evals or observability to see what it is doing.
Where do the recommendations come from?
From the AgentScout directory of 1,498 link-checked AI agent tools. Your answers filter it, and tools are ordered by AgentScout weekly picks and GitHub stars.
Can I share my stack?
Yes. Copy the link (your choices are saved in it), copy the stack as text, or download a PNG stack card to post.
Does this cost anything?
No. It is free, needs no sign-up and runs in your browser.
Popular searches: Open-source AI agent frameworks · Free MCP servers · Free no-code AI agent builders
Popular with: Founders and small businesses · AI engineers · Startup CTOs
More free AI tools built by 
: AI API Cost Calculator · AI Token Counter · AI Prompt Builder · AI Agent Setup Generator · MCP Config Builder · llms.txt Generator · AI Tool Schema Builder · AI Agent Run Cost Estimator · AGENTS.md & Rules File Generator · System Prompt Linter · Context Window Planner · Open-Source License Checker for AI Tools · Build vs Buy AI Agent Calculator · MCP Server Picker · JSON Output Schema Validator · AI Tool Comparison Card Maker · AI Agent Readiness Checker · Free AI image generator · All free tools