Koskamo

Japan Library Search (NDL) MCP

A remote MCP server that enables AI agents to search the National Diet Library catalogue for bibliographic hits, including titles and creators, supporting both free and paid tiers.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Japan Library Search (NDL) MCP logo, by Donnie MorrisonCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Donnie Morrison
MCP endpoint (Streamable HTTP)
https://jp-library-search-mcp.donniertf.workers.dev/mcp
Vendor documentation

What you can do with it

  • Search NDL catalogue by title keyword
  • Search NDL by creator or author keyword
  • Retrieve bibliographic hits for research agents

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.donniertf-hub/jp-library-search-mcp@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
jp-library-search-mcp 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Japan Library Search (NDL). library_search is free. Subscribe (¥1200/month, cancel anytime) at https://jp-library-search-mcp.donniertf.workers.dev/buy for the paid tools, then pass access_token.

Tools

3 advertised

library_search
Advertised by the server during the last successful anonymous check.

FREE. Search the National Diet Library catalogue by title keyword — top 3.

library_search input schema
{
  "type": "object",
  "required": [
    "title"
  ],
  "properties": {
    "title": {
      "type": "string"
    }
  }
}
library_search_pro
Advertised by the server during the last successful anonymous check.

PRO. Up to 20 NDL title search hits.

library_search_pro input schema
{
  "type": "object",
  "required": [
    "title"
  ],
  "properties": {
    "limit": {
      "type": "number"
    },
    "title": {
      "type": "string"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}
creator_search
Advertised by the server during the last successful anonymous check.

PRO. Search NDL by creator/author keyword.

creator_search input schema
{
  "type": "object",
  "required": [
    "creator"
  ],
  "properties": {
    "limit": {
      "type": "number"
    },
    "creator": {
      "type": "string"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
512 ms
95th percentile latency
512 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 512 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http japan-library-search-ndl-mcp https://jp-library-search-mcp.donniertf.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add japan-library-search-ndl-mcp --url https://jp-library-search-mcp.donniertf.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable japan-library-search-ndl-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "japan-library-search-ndl-mcp": {
      "url": "https://jp-library-search-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "japan-library-search-ndl-mcp": {
      "type": "streamableHttp",
      "url": "https://jp-library-search-mcp.donniertf.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start japan-library-search-ndl-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "japan-library-search-ndl-mcp": {
      "type": "http",
      "url": "https://jp-library-search-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http japan-library-search-ndl-mcp https://jp-library-search-mcp.donniertf.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "japan-library-search-ndl-mcp": {
      "url": "https://jp-library-search-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "japan-library-search-ndl-mcp": {
      "serverUrl": "https://jp-library-search-mcp.donniertf.workers.dev/mcp"
    }
  }
}

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