head to head · open source
ECC vs semantica
ECC has 271,460 GitHub stars, 40,552 forks, 339 open issues and last shipped yesterday. semantica has 13,619 stars, 1,561 forks, 120 open issues and last shipped yesterday. ECC leads on adoption by 1,893% (271,460 vs 13,619 stars). ECC is written in JavaScript under MIT; semantica is written in Python under MIT. ECC has attracted 15% as many forks as stars, semantica 11%. semantica was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (developer-tools), 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 | semantica | |
|---|---|---|
| GitHub stars | ★ 271K | ★ 14K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-10-02 | 2026-10-02 |
| Forks | ⑂ 41K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 271K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick semantica if
- You want the semantica feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and semantica 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 semantica
Semantica is an open source, MIT licensed Python framework for developers building context management and accountable AI systems who need graph native knowledge infrastructure instead of expensive enterprise platforms.
read the full semantica overview →
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Frequently asked questions
Is ECC or semantica more popular?
ECC has 271,460 GitHub stars and semantica has 13,619. ECC has the larger community by that measure.
Are ECC and semantica free?
Both are open source. ECC is licensed under MIT and semantica under MIT. Neither carries a licence fee.
What is the difference between ECC and semantica?
ECC is written in JavaScript and semantica in Python. 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 semantica?
Choose ECC if you want the larger community (271,460 stars) or its MIT licence terms. Choose semantica if its feature set, stack or MIT licence fits better. Both are self-hostable.