Comparison
ECC vs Tallyfern Rates (Canada)
ECC has more GitHub stars (281,307 vs 0). ECC was updated more recently (last commit 4d ago). Data comes straight from GitHub and refreshes daily.
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
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/plugin marketplace add https://github.com/affaan-m/ECC
Tallyfern Rates (Canada)
Read-only Canadian GST/HST rates, small-supplier check and CRA allowance rates, with CRA sources.
$
claude mcp add --transport http tallyfern-rates-canada https://mcp.tallyfern.com/mcp| Metric | ECC | Tallyfern Rates (Canada) |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 281,307 | 0 |
| Stars, last 7 days | +1,108 | n/a |
| Forks | 41,827 | 0 |
| Upvotes | 1 | 0 |
| Language | JavaScript | n/a |
| License | MIT | n/a |
| Last commit | 4d ago | n/a |
| Created | Jan 2026 | n/a |
| Categories | AI & LLM tooling, Memory & knowledge, Security | n/a |