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Kybase MCP Server

local only

Kybase runs on your own machine — the client starts it, so there is no endpoint to ping. 138 installs a week from npm. Last commit 29 Oct 2026.

Self-hosted Markdown memory for AI agents: notes you can read and edit, with hybrid search.

Installs per day peak 312 · avg 25 · +185% w/w
a month agotoday
138
Installs / week
npm · kybase-mcp
6
Stars
0 open issues
29 Oct 2026
Last commit
6 releases in 90 days
AGPL-3.0
License
TypeScript

What the code does

We read the source, 3 h ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable packages/kybase-mcp/build-mcpb.mjs:24
  if (!fs.existsSync(path.join(here, required))) {
Secret passed into the image build Dockerfile:12
# Build-time placeholder — real secrets injected at runtime via env
ENV KYBASE_SECRET=placeholder

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add kybase -- npx -y kybase-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "kybase": {
      "command": "npx",
      "args": [
        "-y",
        "kybase-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.kybase]
command = "npx"
args = ["-y", "kybase-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "kybase": {
      "command": "npx",
      "args": [
        "-y",
        "kybase-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "kybase": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "kybase-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: KYBASE_DATA_DIR (Where the embedded database and instance secret live. Defaults to ~/.kybase), EMBEDDING_PROVIDER (Embedding provider for semantic search), OLLAMA_URL (Ollama endpoint for local embeddings. Without any provider, full-text search still works), OLLAMA_MODEL (Ollama embedding model), GOOGLE_API_KEY (Google API key, when EMBEDDING_PROVIDER=google. Sends note text to Google), OPENAI_API_KEY (OpenAI API key, when EMBEDDING_PROVIDER=openai. Sends note text to OpenAI), DATABASE_URL (Use an existing Kybase Postgres instead of the embedded one (migrations are left to the app)).

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Kybase — questions

Answers built from our own checks of this server.

Why is there no uptime for Kybase?
Kybase runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package kybase-mcp was installed 138 times last week.
How do I connect Kybase?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls kybase-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Kybase?
The npm package kybase-mcp was installed 138 times in the last week. Week over week that is +185%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Kybase open source?
Yes — it is published under the AGPL-3.0 licence, written in TypeScript and 6 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.