Metis Check MCP Server

by metisfoundry-check-api Your server? Claim it

answering

Metis Check is answering right now. Last checked 3 min ago. Last commit 27 Oct 2026.

Checks an answer's citations at the registries that issue them. Every check files a signed report.

Uptime history 6 days of history · worst day 29%

6 days agonow

98.9%

Uptime 24h

90 of 91 checks

—

Tools

hidden behind auth

506 ms

Response time

average over 24h

Stars

last commit 27 Oct 2026

Metis Check does not always answer

Over the last week it answered 66.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add metis-check --transport http https://check-api.metisfoundry.com/mcp/check

Settings → Connectors → Add custom connector, then paste this address

https://check-api.metisfoundry.com/mcp/check

~/.codex/config.toml

[mcp_servers.metis-check]
url = "https://check-api.metisfoundry.com/mcp/check"

.cursor/mcp.json

{
  "mcpServers": {
    "metis-check": {
      "url": "https://check-api.metisfoundry.com/mcp/check"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "metis-check": {
      "type": "http",
      "url": "https://check-api.metisfoundry.com/mcp/check"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://check-api.metisfoundry.com/mcp/check	streamable-http	sign-in	402 ms	3 min ago

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Metis Check — questions

Answers built from our own checks of this server.

Why is there no tool list for Metis Check?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 98.9% of checks in the last 24 hours got a reply.

Is Metis Check working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 91 checks got a reply (98.9%), average response time 506 ms. The bar chart above shows every period we have measured.

How do I connect Metis Check?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Metis Check?

No API key is involved. Metis Check answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Metis Check?

It answers our handshake in 506 ms on average, which is faster than 24% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Metis Check open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.