head to head · open source
reaction vs claude-ops
reaction has 12,401 GitHub stars, 2,176 forks, 96 open issues and last shipped 7 months ago. claude-ops has 521 stars, 59 forks, 1 open issues and last shipped 2 days ago. reaction leads on adoption by 2,280% (12,401 vs 521 stars). reaction is written in JavaScript under GPL-3.0; claude-ops is written in Shell under MIT. reaction has attracted 18% as many forks as stars, claude-ops 11%. claude-ops was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ecommerce), 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
| reaction | claude-ops | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 521 |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | Shell |
| Last push | 2026-03-01 | 2026-09-23 |
| Forks | ⑂ 2.2K | ⑂ 59 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick reaction if
- You weight community size — 12K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick claude-ops if
- You want the claude-ops feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Shell
- You evaluated both and claude-ops fits your workflow better
About reaction
Mailchimp Open Commerce, formerly Reaction Commerce, is an API first, headless commerce platform built on Node.js, MongoDB, and GraphQL for development teams that want to run a custom storefront, marketplace, or multi shop operation on their own infrastructure — and the project has been discontinued.
read the full reaction overview →
About claude-ops
claude ops is a Claude Code plugin that turns the coding agent into a business operating system, giving founders, operators and engineering leads one briefing on infrastructure, CI/CD, inbox, pull requests, sprint state and revenue, plus agents that act on those signals.
read the full claude-ops overview →
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Frequently asked questions
Is reaction or claude-ops more popular?
reaction has 12,401 GitHub stars and claude-ops has 521. reaction has the larger community by that measure.
Are reaction and claude-ops free?
Both are open source. reaction is licensed under GPL-3.0 and claude-ops under MIT. Neither carries a licence fee.
What is the difference between reaction and claude-ops?
reaction is written in JavaScript and claude-ops in Shell. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, reaction or claude-ops?
Choose reaction if you want the larger community (12,401 stars) or its GPL-3.0 licence terms. Choose claude-ops if its feature set, stack or MIT licence fits better. Both are self-hostable.