head to head · open source
ECC vs moai-adk
ECC has 267,023 GitHub stars, 39,902 forks, 232 open issues and last shipped yesterday. moai-adk has 1,220 stars, 226 forks, 18 open issues and last shipped today. ECC leads on adoption by 21,787% (267,023 vs 1,220 stars). ECC is written in JavaScript under MIT; moai-adk is written in Go under Apache-2.0. ECC has attracted 15% as many forks as stars, moai-adk 19%. moai-adk was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (anthropic, claude, claude-code), 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
| ECC | moai-adk | |
|---|---|---|
| GitHub stars | ★ 267K | ★ 1.2K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-09-24 | 2026-09-25 |
| Forks | ⑂ 40K | ⑂ 226 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 267K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick moai-adk if
- You want the moai-adk feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and moai-adk fits your workflow better
About ECC
ECC is an MIT licensed open source agent harness performance optimization system that gives AI coding agents a coordinated engineering workflow — plan, test, implement, review, verify, remember, improve — for developers working in Claude Code, Codex, OpenCode, Cursor, and other harnesses.
About moai-adk
moai adk is an open source, Apache 2.0 agentic development harness for Claude Code, distributed as a single Go binary, that imposes SPEC driven structure, quality gates, and per column model routing on AI written code so that developers and teams can trust what the agent produces.
read the full moai-adk overview →
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Frequently asked questions
Is ECC or moai-adk more popular?
ECC has 267,023 GitHub stars and moai-adk has 1,220. ECC has the larger community by that measure.
Are ECC and moai-adk free?
Both are open source. ECC is licensed under MIT and moai-adk under Apache-2.0. Neither carries a licence fee.
What is the difference between ECC and moai-adk?
ECC is written in JavaScript and moai-adk in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ECC or moai-adk?
Choose ECC if you want the larger community (267,023 stars) or its MIT licence terms. Choose moai-adk if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.