Kin
MCP server by firelock-ai
Query a graph-native code repository of functions, types and their relationships from your AI coding agent.
Install Kin
Runs on your machine. Your client starts it with this command:
Needs Node.js on your computer. The setup steps below show where the command goes in each client.
Share this server
Opens this page, with the install command and setup steps.
mcp.tc/i/kinAbout
Kin is an open-source code repository that stores source, recorded code relationships and versioned history together as a graph. Its MCP server lets agents such as Claude Code, Codex, Cursor and Gemini query the same graph as the CLI, for example to look up callers of a function or explore related code before changing it.
It runs locally over stdio, started with npx from the @kinlab/kin package. Node.js 20 or newer is required. Kin must first be initialized in a repository with kin init. No API key is listed. Semantic search uses a local model of about 523 MB that is downloaded after confirmation. The project is in public beta.
What you can do
- Locate entities in a repository by name or semantic search
- Find recorded references and callers of a function or type
- Trace nearby context for a symbol
- Explore the potential impact of a change through the graph
- Run advisory review reports on a commit range
- Work from the same graph as the Kin CLI
Tools
Local servers list their tools once they’re running, and this one doesn’t publish its list in advance. Your client shows them after you add it.
Example prompts
Find all recorded callers of parseConfig before I change it
What code is affected if I modify the User type?
Locate the function that handles retry logic in this repo
Review the changes between main and HEAD for impact
Set up
Every client starts Kin on your machine with the same command. Pick yours; the page remembers your choice.
Claude Code
- Run this in a terminal, in your project folder:
claude mcp add --transport stdio kin -- npx -y @kinlab/kin- Start Claude Code and type
/mcp. kin should show as connected.
Add --scope user to make it available in every project.
Claude Desktop
- Open Settings → Developer → Edit Config. It opens
claude_desktop_config.json. Add:
{
"mcpServers": {
"kin": {
"command": "npx",
"args": [
"-y",
"@kinlab/kin"
]
}
}
}- Save the file and restart Claude Desktop.
Needs Node.js on your computer. The file lives in ~/Library/Application Support/Claude/ on macOS and %APPDATA%\Claude\ on Windows.
Cursor
Add to Cursor (opens in a new tab)
Or add it by hand to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project):
{
"mcpServers": {
"kin": {
"command": "npx",
"args": [
"-y",
"@kinlab/kin"
]
}
}
}Needs Node.js on your computer.
VS Code
Install in VS Code (opens in a new tab)
Or from a terminal:
code --add-mcp '{"name":"kin","type":"stdio","command":"npx","args":["-y","@kinlab/kin"]}'Or commit it to the repo in .vscode/mcp.json:
{
"servers": {
"kin": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@kinlab/kin"
]
}
}
}Needs Node.js on your computer.
Devin Desktop
- Add it to
~/.config/devin/mcp_config.json(macOS and Linux) or%APPDATA%\devin\mcp_config.json(Windows):
{
"mcpServers": {
"kin": {
"command": "npx",
"args": [
"-y",
"@kinlab/kin"
]
}
}
}- Refresh the MCP server list in Cascade.
Devin Desktop is the new name for Windsurf.
Codex
codex mcp add kin -- npx -y @kinlab/kinOr edit ~/.codex/config.toml directly:
[mcp_servers.kin]
command = "npx"
args = ["-y", "@kinlab/kin"]Needs Node.js on your computer.
Gemini CLI
gemini mcp add kin npx -- -y @kinlab/kinThis adds it to the current project. Add -s user to use it everywhere.
Any client
Most clients that start local servers accept this shape:
{
"mcpServers": {
"kin": {
"command": "npx",
"args": [
"-y",
"@kinlab/kin"
]
}
}
}Zed puts servers under context_servers in its settings, with the same command, args and env fields.
Needs Node.js on your computer.
FAQ
Can I paste mcp.tc/i/kin into my MCP client?
No. Kin runs on your own computer, started by your client, so it has no web address to connect to. The quick link is the page to share; the install command is npx -y @kinlab/kin.
Does Kin need an API key?
No. It doesn’t declare any keys or environment variables. It runs with your user account’s permissions, so check what its tools can reach.
Is Kin a remote or a local server?
Local. Your client starts it as a process on your computer with npx -y @kinlab/kin, which needs Node.js.
What can Kin do?
You can locate entities in a repository by name or semantic search, find recorded references and callers of a function or type and trace nearby context for a symbol.
Which clients can use it?
Any client that starts local servers: Claude Code, Claude Desktop, Cursor, VS Code, Devin Desktop, Codex, Gemini CLI, Zed and others. claude.ai and ChatGPT only connect to remote servers.
Who wrote this page?
mcp.tc’s robot read Kin’s public metadata (its package and repository pages), and an AI model drafted the text from it. A person reviews anything the checks can’t confirm. The text can still be wrong, so if you spot a mistake, use Report this listing on this page.
Embed
Show Kin in a README or on your site. Each embed links to this page, uses the server’s own install command, and sets no cookies. How embeds work
README badge
[](https://mcp.tc/i/kin)<a href="https://mcp.tc/i/kin"><img src="https://mcp.tc/i/kin/badge.svg" alt="Kin on mcp.tc" height="20"></a>It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.
Website card
<script src="https://mcp.tc/w/kin.js" async></script>The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.
iframe
<iframe src="https://mcp.tc/embed/kin" title="Kin on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.
JSON
The listing as data for your own pages and tools: name, tagline, install command, tools and the “Add to” links. Any site can read it (CORS is open).
https://mcp.tc/i/kin.jsonmcp.tc isn’t affiliated with firelock-ai. This page was built from Kin’s public metadata, last checked on 4 Oct 2026, and an AI model wrote the description, so it can be wrong. Names and marks belong to their owners. Something off? Report this listing.