MCP.Market

PromoStash MCP server

online · 100% uptime
by promostash.app·app.promostash/promostash·v1.0.0
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Search your private marketing email archive and organize collections with optional write access.

B77/100grade B
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Safety scan
B77/100

full report

Adoption
New

Little public usage data yet

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

PromoStash tools

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

Public scan report

scanner v0.1.10 · 2026-10-14 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 194ms (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 PromoStash 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
330 ms
faster than 48% of 609 Email servers

Install PromoStash in Claude Code, Cursor or VS Code

claude mcp add --transport http promostash https://www.promostash.app/api/mcp
Add to Cursor

PromoStash: common questions

Is PromoStash MCP server safe?
Mostly: it is graded B (77/100). Read the PromoStash safety report
How do I install PromoStash?
It runs remotely at www.promostash.app. 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 PromoStash need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is PromoStash maintained?
The latest release is v1.0.0.
Is PromoStash 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 PromoStash?
Servers from other publishers that do the same job: Imap MCP server, Fluxmail MCP server and Gmail MCP server.
How does PromoStash 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 330 ms (faster than 48% of 609 Email servers). Full comparison.

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