YaCy peer-to-peer search MCP Server

io.github.pad01g/yacy-search

Repository Registry

What is the YaCy peer-to-peer search MCP server?

Web search, crawling and ranking evaluation on your own YaCy peer: no API key, no central service.

How to install YaCy peer-to-peer search

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

YACY_URL
required
Base URL of your YaCy peer as seen from the MCP server container, e.g. http://yacy:8090 on a shared Docker network (docker run --network ...), or http://host.docker.internal:8090
YACY_ADMIN_USER
YaCy administrator account, needed for crawling and settings
YACY_ADMIN_PASSWORD
secret
YaCy administrator password; without it crawl, settings and the index counts of index_status are not available
YACY_CRAWL_ALLOW_PRIVATE
1 lets crawl reach loopback and private addresses (intranets); off by default
YACY_ALLOW_TRUST_SETTINGS
1 lets set_ranking_setting change the trust filter settings (acceptUnverified, excludeTags); off by default

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

{
  "mcpServers": {
    "yacy-search": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/pad01g/yacy-search-mcp:0.2.1"
      ],
      "env": {
        "YACY_URL": "<YOUR_YACY_URL>",
        "YACY_ADMIN_USER": "<YOUR_YACY_ADMIN_USER>",
        "YACY_ADMIN_PASSWORD": "<YOUR_YACY_ADMIN_PASSWORD>",
        "YACY_CRAWL_ALLOW_PRIVATE": "<YOUR_YACY_CRAWL_ALLOW_PRIVATE>",
        "YACY_ALLOW_TRUST_SETTINGS": "<YOUR_YACY_ALLOW_TRUST_SETTINGS>"
      }
    }
  }
}

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