Comparison
CalKit vs ECC
ECC has more GitHub stars (279,762 vs 0). ECC was updated more recently (last commit 3d ago). Data comes straight from GitHub and refreshes daily.
CalKit
Public holidays for 150+ countries, business-day maths and timezone lookup
$
claude mcp add --transport http calkit https://calkit-public-holidays-business-days-timezones.p.rapidapi.com/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 | CalKit | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 279,762 |
| Stars, last 7 days | n/a | n/a |
| Forks | 0 | 41,620 |
| Upvotes | 0 | 0 |
| Language | n/a | JavaScript |
| License | n/a | MIT |
| Last commit | n/a | 3d ago |
| Created | n/a | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |