Comparison
3LT Letter Mail vs ECC
ECC has more GitHub stars (281,307 vs 0). ECC was updated more recently (last commit 2d ago). Data comes straight from GitHub and refreshes daily.
3LT Letter Mail
Give AI assistants hands: send real USPS letters via MCP.
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claude mcp add --transport http 3lt-letter-mail https://3lgrouptechnology.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.
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/plugin marketplace add https://github.com/affaan-m/ECC| Metric | 3LT Letter Mail | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 281,307 |
| Stars, last 7 days | n/a | +1,108 |
| Forks | 0 | 41,827 |
| Upvotes | 0 | 1 |
| Language | n/a | JavaScript |
| License | n/a | MIT |
| Last commit | n/a | 2d ago |
| Created | n/a | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |