Verdict. Qualisend Email Verification MCP server and Potarix MCP server had the same 30-day uptime in Glimind's checks (100%). Qualisend Email Verification MCP server answers faster (597 vs 717 ms median). Qualisend Email Verification MCP server had fewer outages in 90 days (0 vs 3).
Data as of .
| Metric | Qualisend Email Verification MCP server | Potarix MCP server |
|---|---|---|
| Uptime, 30 days | 100% | 100% |
| Median handshake latency | 597 ms | 717 ms |
| p95 handshake latency | 2698 ms | 3038 ms |
| Checks in 30 days | 4,969 | 4,996 |
| Outages, 90 days | 0 | 3 |
| Median recovery | — | 6 min |
| Agent-readiness score | 96/100 (A) | 96/100 (A) |
| Tools | 12 | 9 |
| Tool-list size for an agent | ~1,951 tokens | ~1,276 tokens |
| Days observed | 29 | 29 |
Qualisend Email Verification MCP server and Potarix MCP server had the same 30-day uptime in Glimind's checks (100%). Qualisend Email Verification MCP server answers faster (597 vs 717 ms median). Qualisend Email Verification MCP server had fewer outages in 90 days (0 vs 3).
Claude Code
claude mcp add --transport http qualisend-email-verification-mcp-server https://app.qualisend.com/api/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"qualisend-email-verification-mcp-server": {
"type": "http",
"url": "https://app.qualisend.com/api/mcp"
}
}
}
Claude Code
claude mcp add --transport http potarix-mcp-server https://api.potarix.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"potarix-mcp-server": {
"type": "http",
"url": "https://api.potarix.com/mcp"
}
}
}
Third-party servers, listed as discovered. Glimind is not affiliated with either. Figures are automated measurements from one region and may lag.