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We connect to every server for real, not just list it.
Schema validation
Every advertised tool is checked against the MCP spec.
Reliability grade
One easy A–F score, from those automated checks.
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Every MCP server in the registry, tested and graded before your agent depends on it.

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  1. Servers
  3. Mermail

Mermail

app.mermail/mcp

Email inbox API for AI agents: read, search, draft, send, and triage mail over Streamable HTTP.

Check history

updated 2h ago·re-checked weekly

DateGradeErrorsWarnings
2026-07-27auth required——

Graded by connecting to the live server and validating every tool schema. Grades re-run on every sync. Findings and grades are never editable by the publisher.

Kick the tires on your own server: run a check

Grade
–

Not graded: requires credentials before it lists tools.

How grading works

Install

Claude Code (remote)

claude mcp add --transport http app-mermail-mcp https://console.mermail.app/mcp

Endpoint (streamable HTTP)

https://console.mermail.app/mcp

Verify it yourself

npx tirekick check https://console.mermail.app/mcp
Links
  • MCP registry entry
  • Your server? Claim this listing