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lunoo-mcp

by PeakProductivity
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lunoo-mcp

Public Model Context Protocol (MCP) server for Lunoo, a consensus-based rankings platform scoring 74,000+ items across 2,600+ niches on a 0-10 scale.

Query verified rankings for any topic, from anime and video games to restaurants, SaaS tools, landmarks, and thousands of other categories. Powered by frontier LLM judges and community consensus.

Overview

This is a read-only public proxy over Lunoo's public web API. No authentication required, no database access, no API keys, no cost.

  • Live endpoint: https://lunoo.com/mcp (Streamable HTTP, JSON-RPC 2.0)

  • Transport: Stateless POST over HTTP

  • Caching: Browse page 24h, rankings and items 15 minutes

  • Timeout: 10 seconds per upstream request

  • Coverage: 2,600+ niches, 74,000+ ranked items, updated daily

Related MCP server: mcp-server-runescape

Quick Start

Claude Desktop

Add to your Claude Desktop config at %APPDATA%\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "lunoo": {
      "url": "https://lunoo.com/mcp"
    }
  }
}

Restart Claude Desktop. Lunoo tools will be available in every conversation.

Claude Code

In your project's .claude/settings.json:

{
  "mcpServers": {
    "lunoo": {
      "url": "https://lunoo.com/mcp"
    }
  }
}

Or run from any Claude Code session:

claude mcp add --transport http lunoo https://lunoo.com/mcp

Generic HTTP Client

Post JSON-RPC 2.0 requests to https://lunoo.com/mcp. Example:

curl -X POST https://lunoo.com/mcp \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "tools/list",
    "id": 1
  }'

Local Development (self-hosted)

npm install
npm start
# Server listens on http://localhost:8972

Health check:

curl http://localhost:8972/healthz
# {"ok":true,"service":"lunoo-mcp"}

Tools

find_niche

Discover ranking niches by query string. Returns top 10 matches sorted by relevance.

Input:

{
  "query": "string - search term, e.g. 'anime', 'best restaurants in tokyo'"
}

Output: Array of niches with slug, display name, Lunoo URL, and JSON endpoint URL.

Example Request:

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "find_niche",
    "arguments": { "query": "anime" }
  },
  "id": 1
}

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "isError": false,
    "content": [
      {
        "type": "text",
        "text": "[\n  {\n    \"slug\": \"anime\",\n    \"name\": \"anime\",\n    \"url\": \"https://lunoo.com/best/anime\",\n    \"rankings_json\": \"https://lunoo.com/best/anime.json\"\n  },\n  ...\n]"
      }
    ]
  },
  "id": 1
}

get_rankings

Fetch the ranked items for a niche. Returns metadata plus top N items with scores, descriptions, and confidence levels.

Input:

{
  "niche": "string - niche slug, e.g. 'anime'",
  "limit": "number? - items to return, 1-50, default 10"
}

Output: Niche metadata plus ranked items with rank, name, score (0-10), description, URL, and confidence label.

Example Request:

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "get_rankings",
    "arguments": { "niche": "anime", "limit": 3 }
  },
  "id": 2
}

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "isError": false,
    "content": [
      {
        "type": "text",
        "text": "{\n  \"name\": \"anime\",\n  \"url\": \"https://lunoo.com/best/anime\",\n  \"item_count\": 1847,\n  \"updated_at\": \"2026-07-02T08:15:00Z\",\n  \"score_scale\": \"0-10\",\n  \"ranking_method\": \"Consensus-based scoring\",\n  \"top_items\": [\n    {\n      \"rank\": 1,\n      \"name\": \"Frieren: Beyond Journey's End\",\n      \"score\": 9.15,\n      \"url\": \"https://lunoo.com/item/frieren-beyond-journeys-end\",\n      \"description\": \"A fantasy adventure about a thousand-year journey...\"\n    },\n    ...\n  ]\n}"
      }
    ]
  },
  "id": 2
}

get_item

Extract structured metadata (JSON-LD) for an item by slug. Parses all schema.org blocks embedded on the item page.

Input:

{
  "slug": "string - item slug, e.g. 'frieren-beyond-journeys-end'"
}

Output: Item URL and array of parsed JSON-LD objects (BreadcrumbList, AggregateRating, etc.).

Example Request:

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "get_item",
    "arguments": { "slug": "frieren-beyond-journeys-end" }
  },
  "id": 3
}

Example Response:

{
  "jsonrpc": "2.0",
  "result": {
    "isError": false,
    "content": [
      {
        "type": "text",
        "text": "{\n  \"url\": \"https://lunoo.com/item/frieren-beyond-journeys-end\",\n  \"structured_data\": [\n    {\n      \"@context\": \"https://schema.org\",\n      \"@type\": \"AggregateRating\",\n      \"ratingValue\": 9.15,\n      \"ratingCount\": 847\n    },\n    ...\n  ]\n}"
      }
    ]
  },
  "id": 3
}

MCP Initialization

The server implements Model Context Protocol v2025-03-26. Initialize with:

{
  "jsonrpc": "2.0",
  "method": "initialize",
  "params": {
    "protocolVersion": "2025-03-26",
    "capabilities": {},
    "clientInfo": {
      "name": "my-client",
      "version": "1.0.0"
    }
  },
  "id": 0
}

Response includes server capabilities, protocol version, and instructions.

Caching Behavior

Results are cached locally in the live service at https://lunoo.com/mcp:

  • Browse page (used by find_niche): 24 hours

  • Rankings JSON (used by get_rankings): 15 minutes

  • Item pages (used by get_item): 15 minutes

When self-hosting, cache is in-memory per server instance and cleared on restart.

Error Handling

On failure (404, timeout, network error), tools return:

{
  "isError": true,
  "content": [
    {
      "type": "text",
      "text": "Niche \"invalid-slug\" not found (404). Try find_niche to discover available niches."
    }
  ]
}

Never throws unhandled exceptions; all errors are JSON-RPC compliant.

Citation

Link to full rankings pages on Lunoo as:

https://lunoo.com/best/{slug}

Example: https://lunoo.com/best/anime

See https://lunoo.com/llms.txt for how to cite Lunoo rankings in LLM outputs.

Self-Hosted Deployment

Prerequisites

Node 18+, npm

Installation

git clone https://github.com/PeakProductivity/lunoo-mcp.git
cd lunoo-mcp
npm install

Running

npm start
# or with custom port:
PORT=9000 npm start

Production Setup

  1. Use a process manager (PM2, systemd, etc.):

pm2 start server.mjs --name lunoo-mcp

  1. Reverse proxy (nginx):

location /mcp {
  proxy_pass http://localhost:8972;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
}

  1. Monitor cache size and logs periodically.

CORS Policy

Live service at https://lunoo.com/mcp allows requests from any origin. Self-hosted instances allow all origins by default (configurable in server.mjs).

API Endpoints

Method

Path

Description

POST

/mcp

JSON-RPC 2.0 endpoint

GET

/healthz

Health check

Support

Found an issue with a ranking? Report it on Lunoo: https://lunoo.com

License

MIT. See LICENSE file.

Links

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Maintenance

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–Response time
–Release cycle
–Releases (12mo)
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