Comparison
Arc & Ledger Tax Reference vs ECC
ECC has more GitHub stars (280,740 vs 0). ECC was updated more recently (last commit 17h ago). Data comes straight from GitHub and refreshes daily.
Arc & Ledger Tax Reference
Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.
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claude mcp add --transport http arc-ledger-tax-reference https://mcp.arcandledger.com/directory/mcp
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| Metric | Arc & Ledger Tax Reference | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 280,740 |
| Stars, last 7 days | n/a | +541 |
| Forks | 0 | 41,744 |
| Upvotes | 0 | 0 |
| Language | n/a | JavaScript |
| License | n/a | MIT |
| Last commit | n/a | 17h ago |
| Created | n/a | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |