MCP.Market

Yo MCP server

online · 100% uptime
by alfongj-com·io.github.alfongj-com/yo·v1.0.1
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Let agents send content-free push notifications to a paired phone via MCP.

B84/100grade B
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Safety scan
B84/100

full report

Adoption
New

0 stars

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

Yo tools (5, 2 write)

write = sends, deletes, buys or posts
  • cancel_registrationwrite actionFree

    Abort a pairing you started with register_agent. Works while pending and after approval: an already-approved connection is revoked (the API key stops working) so a pairing approved by the wrong account can be undone. Available until the pairing expires, and for 15 minutes after you pick up the API key; later than that, use revoke_self. Then call register_agent again.

  • check_registrationFree

    Check the status of a pairing code from register_agent. On the first poll after the user approves, the response includes the api_key exactly once — store it immediately in your secret mechanism — plus paired_with, the account the agent is now connected to, which you MUST show the user.

  • register_agentFree

    Register this agent with Yo (unauthenticated). Returns a pairing URL and code to show the user, who approves the connection in the Yo app. Then poll check_registration to obtain the API key.

  • revoke_selfFree

    Permanently revoke THIS agent using its API key as the Bearer token. Use when you discover (at any time) that paired_with is not your owner’s account and cancel_registration no longer works. The key stops working immediately; call register_agent to start over.

  • yowrite actionFree

    Send a Yo — a content-free push notification — to your owner. Requires an agent API key as the Bearer token. Optionally include a context_url the notification tap-through will open.

Public scan report

scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 819ms20/20
  • Tool poisoning5 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 45 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 84/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Yo compares

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

Safety score
84/100
higher than 68% of 48,255 servers
Tools
5
the typical server has 7
Tools that change things
40%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
105 ms
faster than 83% of 30,031 servers

What its tools let an agent do: 1 read · 1 create · 1 change · 2 delete

Install Yo in Claude Code, Cursor or VS Code

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

What the publisher says

From the Yo repository's README, as published. We do not edit it. Read it on GitHub

Yo — Agent Plugin

Let your agent Yo you: one MCP tool call sends a content-free push notification to your phone. The sender identity plus the moment of the ping is the message.

This package is the public integration for the hosted Yo service (Agent Plugins 1.0.0 format):

  • plugin.json — plugin manifest
  • mcp.json — portable Agent Plugins Streamable HTTP config for the hosted Yo MCP server
  • skills/yo/SKILL.md — teaches your agent when and how to yo, and how to register
  • .codex-plugin/plugin.json + .mcp.json — Codex-specific layout; .mcp.json uses the client http transport
  • .claude-plugin/plugin.json + marketplace.json — Claude Code marketplace layout
  • glama.json — Glama directory ownership claim
  • server.json — official MCP Registry metadata for the hosted server. Its version is the registry record version, intentionally decoupled from the plugin manifests' 1.0.0; because the registry rejects duplicate versions and our token can publish but not edit io.github.alfongj-com/*, metadata corrections require a version bump (currently 1.0.1).

The Yo service itself is hosted and closed-source. This repo contains no server code and no secrets.

Install instructions for all platforms: https://getyo.dev/agents

This repository is mirrored automatically from a private monorepo; PRs here are not reviewed — use the contact on the install page.

License

MIT (plugin package only).

Nothing above is checked by us. What we check is on the safety report.

Yo: common questions

Is Yo MCP server safe?
Mostly: it is graded B (84/100). Read the Yo safety report
How do I install Yo?
It runs remotely at getyo.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 Yo need an API key?
Yes. The registry entry asks for Authorization.
Is Yo maintained?
The last commit was 87 days ago (2026-08-09). The latest release is v1.0.1.
Is Yo up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Yo compare with other MCP servers?
safety score 84/100 (higher than 68% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 40% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.