<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Stacks and Flows</title><description>Independent reviews of AI agents and workflow automation tools.</description><link>https://stacksandflows.com/</link><language>en-us</language><item><title>Relay.app</title><link>https://stacksandflows.com/workflows/relay-app/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/relay-app/</guid><description>Human-in-the-loop workflow automation with AI steps, approvals, and a focus on cross-team collaboration over raw integration count.</description><pubDate>Mon, 11 May 2026 00:00:00 GMT</pubDate></item><item><title>AutoGen</title><link>https://stacksandflows.com/agents/autogen/</link><guid isPermaLink="true">https://stacksandflows.com/agents/autogen/</guid><description>Microsoft&apos;s open-source multi-agent framework — conversation-driven orchestration with deep Azure / OpenAI integration.</description><pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate></item><item><title>Flowise</title><link>https://stacksandflows.com/agents/flowise/</link><guid isPermaLink="true">https://stacksandflows.com/agents/flowise/</guid><description>Lightweight open-source visual builder for LLM agents and chatflows — Node.js-native, fast canvas, self-hostable.</description><pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate></item><item><title>Langflow</title><link>https://stacksandflows.com/agents/langflow/</link><guid isPermaLink="true">https://stacksandflows.com/agents/langflow/</guid><description>Open-source visual builder for LangChain-style agents and RAG flows — drag-and-drop, Python-native, self-hostable.</description><pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate></item><item><title>Claude Agent SDK</title><link>https://stacksandflows.com/agents/claude-agent-sdk/</link><guid isPermaLink="true">https://stacksandflows.com/agents/claude-agent-sdk/</guid><description>Build agents with tool use, computer use, MCP, and Anthropic&apos;s safety primitives — Python and TypeScript.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>CrewAI</title><link>https://stacksandflows.com/agents/crewai/</link><guid isPermaLink="true">https://stacksandflows.com/agents/crewai/</guid><description>OSS framework for orchestrating role-playing AI agents that collaborate on complex tasks — Python-first.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Dify</title><link>https://stacksandflows.com/agents/dify/</link><guid isPermaLink="true">https://stacksandflows.com/agents/dify/</guid><description>Open-source platform for agentic AI apps — RAG pipelines, agent workflows, and model management in one stack.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>LangChain</title><link>https://stacksandflows.com/agents/langchain/</link><guid isPermaLink="true">https://stacksandflows.com/agents/langchain/</guid><description>Leading OSS framework for LLM-powered agents and stateful multi-step workflows — Python and JS, with LangGraph for orchestration.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Lindy</title><link>https://stacksandflows.com/agents/lindy/</link><guid isPermaLink="true">https://stacksandflows.com/agents/lindy/</guid><description>Custom AI assistants for sales, support, and ops — no-code agents that handle email, meetings, and calls 24/7.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>OpenAI Agents SDK</title><link>https://stacksandflows.com/agents/openai-agents-sdk/</link><guid isPermaLink="true">https://stacksandflows.com/agents/openai-agents-sdk/</guid><description>Lightweight framework for multi-agent workflows with handoffs, guardrails, and tool calls — Python and TypeScript.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Activepieces</title><link>https://stacksandflows.com/workflows/activepieces/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/activepieces/</guid><description>Open-source automation platform with 280+ integrations and AI flows — the developer-friendly alternative to Zapier.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Make</title><link>https://stacksandflows.com/workflows/make/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/make/</guid><description>Visual workflow builder with 1,800+ apps and deep branching logic — enterprise automation made approachable.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>n8n</title><link>https://stacksandflows.com/workflows/n8n/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/n8n/</guid><description>Open-source workflow automation with 400+ integrations and native AI agent nodes — self-host or cloud, no lock-in.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Pipedream</title><link>https://stacksandflows.com/workflows/pipedream/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/pipedream/</guid><description>Code-first integration platform with 2,000+ APIs, serverless workflows, and a generous free tier — built for developers.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Windmill</title><link>https://stacksandflows.com/workflows/windmill/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/windmill/</guid><description>Turns Python/TypeScript scripts into workflows, UIs, and webhooks — open-source, self-hostable, 13× faster than Airflow.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item><item><title>Zapier</title><link>https://stacksandflows.com/workflows/zapier/</link><guid isPermaLink="true">https://stacksandflows.com/workflows/zapier/</guid><description>Connects 7,000+ apps with no-code automation, AI-powered Zaps, and Tables/Interfaces — the default automation layer for SaaS.</description><pubDate>Sat, 09 May 2026 00:00:00 GMT</pubDate></item></channel></rss>