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Cyanheads MCP Server

answering

Cyanheads MCP Server is answering right now. Last checked 13 min ago. 69 installs a week from npm. It exposes 2 tools. Last commit 22 Aug 2026.

Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.

Installs per day peak 118 · avg 19 · +10% w/w
a month agotoday
Uptime history 47 days of history · worst day 0%
47 days agonow
100.0%
Uptime 24h
91 of 91 checks
2
Tools
read from the server
352 ms
Response time
average over 24h
69
Installs / week
npm and PyPI

What changed 5

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 August 2026. No other catalogue keeps this.

22 Aug 2 tool descriptions were rewritten cyanheads_describe_entry, cyanheads_search_catalog
22 Aug 2 tools changed the parameters they ask for cyanheads_describe_entry, cyanheads_search_catalog
22 Aug a tool changed version

Nothing serious here today

Today is the operative word: we check Cyanheads MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

run in your terminal
claude mcp add cyanheads-mcp-server --transport http https://cyanheads.caseyjhand.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "cyanheads-mcp-server": {
      "url": "https://cyanheads.caseyjhand.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.cyanheads-mcp-server]
url = "https://cyanheads.caseyjhand.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "cyanheads-mcp-server": {
      "url": "https://cyanheads.caseyjhand.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "cyanheads-mcp-server": {
      "url": "https://cyanheads.caseyjhand.com/mcp"
    }
  }
}

This one needs environment variables set before it will start: MCP_HTTP_HOST (Hostname for the HTTP server.), MCP_HTTP_PORT (Port to run the HTTP server on.), MCP_HTTP_ENDPOINT_PATH (Endpoint path for the MCP server.), MCP_AUTH_MODE (Authentication mode: none, jwt, or oauth.), MCP_LOG_LEVEL (Minimum log level: debug, info, notice, warning, error.), CATALOG_URL (Remote fleet.json endpoint (schema v2 with baked embeddings).), CATALOG_FETCH_TIMEOUT_MS (Per-request timeout for fleet.json fetches in milliseconds. Must be > 0.), CATALOG_REFRESH_SECONDS (Background poll interval for fleet.json refresh. 0 disables; otherwise must be > 0.), EMBEDDING_MODEL_ID (Hugging Face model id for query embedding. Must match fleet.json.embeddingModel.), SIMILARITY_FLOOR (Cosine similarity cutoff for cyanheads_search_catalog results. Must be within [0, 1].). The author declared them in the registry entry; get the values from the project itself.

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

cyanheads
cyanheads_describe_entry
Return the description and install snippets for a named tool or server. For tools: the description and the server it belongs to. For servers: local (stdio, via npx) install snippets for every published server, plus remote (HTTP) connection snippets when a hosted endpoint exists — for every supported client, or one client via the client parameter.
cyanheads_search_catalog
Search fleet tools and servers by natural-language description. Returns ranked matches with brief summaries and the server each tool belongs to. Use scope "servers" to find which server handles a workflow; use the default scope "tools" to find specific tools.

Endpoints

URLTransportStateLatencyChecked
https://cyanheads.caseyjhand.com/mcp streamable-http answering 234 ms 13 min ago

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Cyanheads MCP Server — questions

Answers built from our own checks of this server.

What can Cyanheads MCP Server do?
It exposes 2 tools, read directly from the server on our last check. Among them: cyanheads_describe_entry, cyanheads_search_catalog. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Cyanheads MCP Server working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 352 ms. The bar chart above shows every period we have measured.
How do I connect Cyanheads MCP Server?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Cyanheads MCP Server need an API key?
No. Cyanheads MCP Server completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Cyanheads MCP Server?
It answers our handshake in 352 ms on average, which is faster than 44% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Cyanheads MCP Server?
The npm package @cyanheads/cyanheads-mcp-server was installed 69 times in the last week. Week over week that is +10%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Cyanheads MCP Server open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript, 1 stars on GitHub and 7 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.