Fomi Fomi vs Activepieces: two open-source tools — Slack agent vs pieces/flows
Activepieces is an open-source Zapier alternative (pieces and flows). Fomi is also open source (Apache 2.0), but it is a Slack-native AI agent that runs CRM and calendar without designing flows.
Quick answer
Both projects are open source. Activepieces automates with connectable pieces and needs technical setup or self-hosted flows. Fomi is a conversational agent in Slack (Apache 2.0): natural language, native Spanish, self-hostable, and built for business teams. Choose Fomi for in-chat adoption; Activepieces if you need an open-source Zapier-style iPaaS.
Comparison table
| Criteria | Fomi | Activepieces |
|---|---|---|
| Lives in Slack | ✅ Native — @Fomi in any channel | ❌ Extension or external panel |
| Open-source model | ✅ Apache 2.0 — Slack agent | ✅ Open source — pieces/flows |
| Natural language | ✅ Message like a teammate | ⚠️ Prompts or predefined commands |
| Native Spanish | ✅ Spanish and English | ⚠️ Primarily English |
When to choose Fomi
- Open source + business team in Slack
- You want results in minutes without flows
- Native Spanish in-thread
When to choose Activepieces
- You need a Zapier-style open-source iPaaS
- You have DevOps for batch flows
- Automation does not go through Slack
Frequently asked questions
Are Fomi and Activepieces both open source?
Yes. The difference is the product: Fomi is a Slack-native conversational agent; Activepieces is piece/flow automation.
Try it in your workspace
Real open-source project: the public launch is held back on purpose while we polish details — not vaporware. We’ll notify you when it’s ready. Meanwhile, you can set up the Slack app early with the manifest.
Notify me at launch →