retrieve_mcps
Performs retrieval from our registry of MCPs.
LABSCO SUMMARY
Semantic, which is the only way this search works.
Server names are not descriptive — nobody looking for a way to read PDFs searches for the package that does it. Matching on meaning is what makes "something that reads my calendar" return an answer. One tool and no credentials means it costs almost nothing to keep attached, and it is most useful in the moment you realise the assistant cannot do something yet.
What it is
A single-tool MCP server that searches an MCP registry semantically. You describe the capability you are after in ordinary words and it returns matching servers, so discovery happens in the client you are already using rather than by browsing a directory.
What you get
- Retrieval against the MCP registry from a plain-language query, matching on meaning rather than on exact name —
retrieve_mcps
Requirements
No account and no key. The npm package name is mcp-server-retriever (0.6.2); build from a clone with npm install and npm run build, confirm it starts with node ./dist/index.js, then point your client at that path — or install through Smithery.
Setup effort
One command — npx -y github:KBB99/mcp-registry-server
USE CASES
01
Finding a server for a capability you just needed
Describe what you want the assistant to be able to do and get back candidate servers, without leaving the conversation to search a directory.
02
Checking whether something already exists
Search the registry before writing your own server for a job someone has already solved.
03
Comparing options for a well-covered area
Query broadly — search, databases, calendars — and read what the registry returns to see how many alternatives there are.
1 tool
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
BEFORE YOU INSTALL
What to know first
Tools you get
1 tool when we connected.
Requires
npx on PATH
CONTEXT COST
Light Standing cost
Rated by the size of the one tool definition that rides along on every turn
INSTALLATION
Connect your client
Add the block to your client, or run the command directly.
Server setup
Configuration file
JSON
{
"mcpServers": {
"mcp-registry-server": {
"command": "npx",
"args": [
"-y",
"github:KBB99/mcp-registry-server"
]
}
}
}npx
TERMINAL
npx -y github:KBB99/mcp-registry-server
