head to head · open source
ActivePieces vs MDMA
ActivePieces has 25,364 GitHub stars, 4,428 forks, 573 open issues and last shipped yesterday. MDMA has 73 stars, 2 forks, 0 open issues and last shipped 13 days ago. ActivePieces leads on adoption by 34,645% (25,364 vs 73 stars). ActivePieces is written in TypeScript under a custom or non-standard licence; MDMA is written in TypeScript under MIT. ActivePieces has attracted 17% as many forks as stars, MDMA 3%. ActivePieces was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai-agents, mcp, mcp-server), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ActivePieces | MDMA | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 73 |
| License | Custom / other | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-04 | 2026-10-23 |
| Forks | ⑂ 4.4K | ⑂ 2 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ActivePieces if
- You weight community size — 25K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick MDMA if
- You want the MDMA feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and MDMA fits your workflow better
About ActivePieces
An open source replacement for Zapier Documentation 🌪️ Create a Piece 🖉 Deploy 🔥 Join Discord 🤯 Welcome to Activepieces All in one AI automation designed to be extensible through a type safe pieces framework written in TypeScript . When you contribute pieces to Activepieces they become automatically available as MCP servers that you can use with LLMs through Claude Desktop, Cursor or Windsurf! 🔥 Why Activepieces is Different: 💖 Loved by Everyone : Intuitive interface and great experience for both technical and non technical users with a quick learning curve. 🌐 Open Ecosystem: All pieces are open source…
read the full ActivePieces overview →
About MDMA
MDMA Markdown Document with Mounted Applications Interactive documents from Markdown. Built for next gen apps 🌐 Website · 🚀 Live Demo · 📖 Docs · 💬 Discord · 🤗 Model Why MDMA? AI conversations today are plain text — the user reads a response and manually acts on it. MDMA changes that. When an LLM knows the MDMA spec, it can respond with interactive components (forms, tables, approval gates) instead of just text. The conversation becomes actionable: the user fills out a form, approves a step, or reviews structured data — all inline, with a predictable schema that your app already knows how to render and…
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Frequently asked questions
Is ActivePieces or MDMA more popular?
ActivePieces has 25,364 GitHub stars and MDMA has 73. ActivePieces has the larger community by that measure.
Are ActivePieces and MDMA free?
Both are open source. ActivePieces has no licence declared in this registry, and MDMA is licensed under MIT. Both are free to self-host.
What is the difference between ActivePieces and MDMA?
ActivePieces is written in TypeScript and MDMA in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ActivePieces or MDMA?
Choose ActivePieces if you want the larger community (25,364 stars) or its Custom / other licence terms. Choose MDMA if its feature set, stack or MIT licence fits better. Both are self-hostable.