Fish MCP Serverは、[Model Context Protocol (MCP)](https://modelcontextprotocol.io/)を使用してClaude
If you already use Fish, the fish mcp server is the piece that lets your assistant work with it directly. Fish MCP Serverは、Model Context Protocol (MCP)を使用してClaude Desktopに魚類検索機能を提供するサーバーです。FishBaseの35,000種以上の魚類データと5,000種以上の日本語名データを使用し、日本語・英語の自然言語検索に対応しています。.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
FISH_DB_PATH — データベースファイルの絶対パスを指定（オプション）FishBase — 世界最大の魚類データベースsearch_fish_by_name — The search_fish_by_name tool exposed by this serversearch_fish_by_features — The search_fish_by_features tool exposed by this serverInstallation goes through your MCP client rather than a global install: point it at tsx on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
Configuration is passed through the environment: FISH_DB_PATH. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Fish's toolset — FISH_DB_PATH, FishBase, search_fish_by_name and 1 more — is a fair guide to whether it matches your workflow. It is maintained by cozy-corner; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| FISH_DB_PATH | データベースファイルの絶対パスを指定（オプション） |
| FishBase | 世界最大の魚類データベース |
| search_fish_by_name | The search_fish_by_name tool exposed by this server. |
| search_fish_by_features | The search_fish_by_features tool exposed by this server. |
{
"mcpServers": {
"fish-mcp-server": {
"command": "node",
"args": ["/path/to/fish-mcp-server/dist/index.js"],
"cwd": "/path/to/fish-mcp-server",
"env": {
"FISH_DB_PATH": "/path/to/fish-mcp-server/fish.db"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| FISH_DB_PATH | Filesystem location the server is allowed to use. | Optional |
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