Web search, crawling and ranking evaluation on your own YaCy peer: no API key, no central service.
To add YaCy peer-to-peer search to Claude, run the install command below. Restart Claude Code after adding it and its tools show up in your next conversation. It needs 5 environment variables, listed below.
Install
docker run -i --rm ghcr.io/pad01g/yacy-search-mcp:1.0.0Environment variables
YACY_URLSet in your MCP configYACY_ADMIN_USERSet in your MCP configYACY_ADMIN_PASSWORDSet in your MCP configYACY_CRAWL_ALLOW_PRIVATESet in your MCP configYACY_ALLOW_TRUST_SETTINGSSet in your MCP configWhat this does
YaCy peer-to-peer search exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
YACY_URL YACY_ADMIN_USER YACY_ADMIN_PASSWORD YACY_CRAWL_ALLOW_PRIVATE YACY_ALLOW_TRUST_SETTINGS
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install YaCy peer-to-peer search?
The install section on this page carries the maker's install command for YaCy peer-to-peer search, as submitted. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with YaCy peer-to-peer search?
This page carries setup and config for Claude Code. Any other MCP client that accepts a standard server config can connect to YaCy peer-to-peer search as well.
Does YaCy peer-to-peer search need an API key?
Yes. Before it can run, set these environment variables: YACY_URL, YACY_ADMIN_USER, YACY_ADMIN_PASSWORD, YACY_CRAWL_ALLOW_PRIVATE, YACY_ALLOW_TRUST_SETTINGS. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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