Comparison
ECC vs MailTester Email Verification
ECC has more GitHub stars (281,307 vs 0). ECC was updated more recently (last commit 3d 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.
$
/plugin marketplace add https://github.com/affaan-m/ECC
MailTester Email Verification
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
$
claude mcp add --transport http mailtester-email-verification https://app.mailtester.com/mcp| Metric | ECC | MailTester Email Verification |
|---|---|---|
| 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 | 3d ago | n/a |
| Created | Jan 2026 | n/a |
| Categories | AI & LLM tooling, Memory & knowledge, Security | Productivity, AI & LLM tooling |