Verdict. Po6 Mailbox MCP server and Usefulapi Emailoctopus MCP server had the same 30-day uptime in Glimind's checks (100%). Usefulapi Emailoctopus MCP server answers faster (62 vs 398 ms median). Compare readiness below.
Data as of .
| Metric | Po6 Mailbox MCP server | Usefulapi Emailoctopus MCP server |
|---|---|---|
| Uptime, 30 days | 100% | 100% |
| Median handshake latency | 398 ms | 62 ms |
| p95 handshake latency | 651 ms | 240 ms |
| Checks in 30 days | 211 | 213 |
| Outages, 90 days | 0 | 0 |
| Median recovery | — | — |
| Agent-readiness score | 96/100 (A) | 96/100 (A) |
| Tools | 39 | 13 |
| Tool-list size for an agent | ~5,883 tokens | ~2,227 tokens |
| Days observed | 28 | 28 |
Po6 Mailbox MCP server and Usefulapi Emailoctopus MCP server had the same 30-day uptime in Glimind's checks (100%). Usefulapi Emailoctopus MCP server answers faster (62 vs 398 ms median). Compare readiness below.
Claude Code
claude mcp add --transport http po6-mailbox-mcp-server https://mcp.po6.com
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"po6-mailbox-mcp-server": {
"type": "http",
"url": "https://mcp.po6.com"
}
}
}
Claude Code
claude mcp add --transport http usefulapi-emailoctopus-mcp-server https://emailoctopus.usefulapi.io/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"usefulapi-emailoctopus-mcp-server": {
"type": "http",
"url": "https://emailoctopus.usefulapi.io/mcp"
}
}
}
Third-party servers, listed as discovered. Glimind is not affiliated with either. Figures are automated measurements from one region and may lag.