Mmcp.market

Usero MCP server

by usero.io·io.usero/usero·v1.3.0
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Read your Usero feedback inbox and clusters, file feedback, build forms, and open an AI PR.

B81/100grade B
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Safety scan
B81/100

full report

Adoption
Growing

0 stars

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

Usero tools (2)

write = sends, deletes, buys or posts
  • check_signupFree

    Poll after start_signup. Returns { status: "pending" } until the user presses the button in the email, then { status: "ready", apiKey, setup } exactly once; the pollToken is dead after that. The setup field holds the exact config or command for this client plus what to tell the user (restart, or remove-and-re-add on Desktop). Poll every 5 seconds for up to 15 minutes without ending your turn. On ready, apply the setup snippet at once, then call create_client for the product.

  • start_signupFree

    Start signup without leaving the agent. Ask for the user's email, do not invent one. Sends an email with a Review connection button; the user presses that button, then "Yes, connect" on the page that opens (opening the page alone does nothing). That lets check_signup return an API key for this MCP client. Returns a pollToken for check_signup. No key is shown in the browser. 5 per email per hour; the link expires in 15 minutes.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 3253ms17/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identitynamespace and repository owner differ; website matches verified namespace6/10
Overall 81/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http usero https://usero.io/mcp
Add to Cursor

Usero: common questions

Is Usero MCP server safe?
Mostly: it is graded B (81/100). Read the Usero safety report
How do I install Usero?
It runs remotely at usero.io. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Usero need an API key?
Yes. The registry entry asks for Authorization.
Is Usero maintained?
The last commit was in the last day (2026-09-19). The latest release is v1.3.0.
Is Usero up?
100% of our last 4 checks got an answer. We check remote servers about four times a day.
What can I use instead of Usero?
Servers from other publishers that do the same job: Workspace MCP server, Atomic Mail MCP server and Email Inbox API + Sending by Sendmux MCP server. Compare all Usero alternatives.

Alternatives to Usero

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

All Usero alternatives →
  • Workspace
    Google Workspace MCP server for Gmail, Drive, Calendar, Docs, Sheets, Slides, Forms, Tasks, Chat.
    A
  • Atomic Mail
    Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
    A
  • Email Inbox API + Sending by Sendmux
    AI email inbox and sending tools with attachments, search, live events, and webhooks.
    A
  • Local
    Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.
    C
  • Clippy
    Copy AI-generated content to the macOS clipboard: rich Gmail-ready email drafts, text, and files
    A
Usero vs WorkspaceUsero vs Atomic MailUsero vs Email Inbox API + Sending by Sendmux

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