MCP.Market

PostZen MCP server

online · 100% uptime
by postzen.dev·dev.postzen/postzen·v1.0.1
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Schedule and publish social posts, manage the inbox, and read analytics across 10 platforms

B77/100grade B
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Safety scan
B77/100

full report

Adoption
New

Little public usage data yet

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

PostZen tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-02 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 276ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenanceno repository listed3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 77/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How PostZen compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
77/100
higher than 50% of 916 Email servers
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
290 ms
faster than 53% of 609 Email servers

Install PostZen in Claude Code, Cursor or VS Code

claude mcp add --transport http postzen https://mcp.postzen.dev/mcp
Add to Cursor

PostZen: common questions

Is PostZen MCP server safe?
Mostly: it is graded B (77/100). Read the PostZen safety report
How do I install PostZen?
It runs remotely at mcp.postzen.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does PostZen need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is PostZen maintained?
The latest release is v1.0.1.
Is PostZen up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of PostZen?
Servers from other publishers that do the same job: Zernio MCP server, Multi-Account Gmail MCP server and Inbox Zero MCP server.
How does PostZen compare with other Email MCP servers?
safety score 77/100 (higher than 50% of 916 Email servers); uptime 100% (of our recent checks; the typical remote Email server answers 100%); response time 290 ms (faster than 53% of 609 Email servers). Full comparison.

Alternatives to PostZen

Same job from other publishers: the closest match first, then the best rated.

  • Zernio
    Schedule, publish, and analyze social media across 15+ platforms, plus inbox, ads, and analytics.
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  • Multi-Account Gmail
    Multi-account Gmail MCP server — read, search, draft, and label across every inbox.
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  • Inbox Zero
    Search Gmail and Outlook, save drafts, manage email rules, and view email stats.
    A
  • Atomic Mail
    Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
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  • Connectors
    Read Gmail, read and commit to GitHub, update Sheets, and post to Slack through Composio.
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