Comparison
Potto Japan vs ECC
ECC has more GitHub stars (280,199 vs 0). ECC was updated more recently (last commit 10h ago). Data comes straight from GitHub and refreshes daily.
Potto Japan
Authoritative JLPT-graded Japanese dataset (kanji, vocab, grammar, history) via MCP and REST.
$
claude mcp add --transport http potto-japan https://potto.app/mcp
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
$
/plugin marketplace add https://github.com/affaan-m/ECC| Metric | Potto Japan | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 280,199 |
| Stars, last 7 days | n/a | n/a |
| Forks | 0 | 41,674 |
| Upvotes | 0 | 0 |
| Language | n/a | JavaScript |
| License | n/a | MIT |
| Last commit | n/a | 10h ago |
| Created | n/a | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |