The best open source alternative to Zapier is Huginn. If that doesn't suit you, our users have ranked more than 100 alternatives to Zapier and many of them are open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Zapier are Activepieces , UI.Vision RPA, Automa and Automatist.
FlowKit is a free, MIT-licensed library of ready-to-import n8n workflows for small businesses, with a full English site. It covers lead capture, appointment reminders with one-click confirm and cancel links, tax-deadline alerts, overdue-invoice follow-ups and vendor...
Spain
EU
Bees is a free, open source desktop app for running a team of AI agents on your own computer. You describe a piece of work, and Bees plans it, splits it into steps and hands each step to an agent. Agents can read and write files, use your browser and call tools through MCP...
Notipus turns Stripe, Shopify, and Maxio (Chargify) payment events into enriched, real-time alerts in Slack, Telegram, and Microsoft Teams. New sales, failed payments, upgrades, and cancellations arrive with customer company, contact, lifetime value, and churn-risk context attached.
United Kingdom
Open-source MCP gateway that turns business systems and any REST, SOAP, GraphQL, OData or SQL API into tools for Claude, ChatGPT and Cursor.
Open-source governed AI orchestration — coordinates AI agents, human approvers, and existing business systems under one governance model with tamper-evident audit trails.
United States
Source-available, self-hosted AI-native workflow automation platform. Build multi-agent pipelines, RAG workflows, and MCP-connected automations on a visual canvas.
GermanyEU
Corsair is an open source integration layer for AI agents, built natively on the Model Context Protocol (MCP). Connect any API to any AI model with pre-built connectors, a hosted Hub, and zero credential storage on Corsair's side.
