カーリル for AI MCP Server

by calil Your server? Claim it

answering

カーリル for AI is answering right now. Last checked 14 min ago.

Search 7,400+ libraries across Japan, find which one holds a book, and browse NDC classification.

Uptime history 12 days of history · worst day 99%

12 days agonow

98.9%

Uptime 24h

90 of 91 checks

—

Tools

hidden behind auth

755 ms

Response time

average over 24h

OAuth sign-in

Access

streamable-http

カーリル for AI missed 2 checks this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of 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 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add library --transport http https://mcp-beta.calil.jp/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "library": {
      "url": "https://mcp-beta.calil.jp/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.library]
url = "https://mcp-beta.calil.jp/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "library": {
      "url": "https://mcp-beta.calil.jp/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "library": {
      "url": "https://mcp-beta.calil.jp/mcp"
    }
  }
}

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://mcp-beta.calil.jp/mcp	streamable-http	sign-in	1124 ms	14 min ago

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カーリル for AI — questions

Answers built from our own checks of this server.

Why is there no tool list for カーリル for AI?

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 カーリル for AI 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 755 ms. The bar chart above shows every period we have measured.

How do I connect カーリル for AI?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path 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 カーリル for AI?

No API key is involved. カーリル for AI 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 カーリル for AI?

It answers our handshake in 755 ms on average, which is faster than 12% 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.