AI Plugin Index
Keryx
Verified · npm:@mrciphersmithMCP server by MrCipherSmith · updated · ★ 5 · 1.8k downloads a week
Version-controlled project context for AI coding agents: code graph, architecture wiki, project memory, relevant tests, quality signals, and task flows. Keryx is published by npm:@mrciphersmith from its verified domain in the official MCP Registry.
Last commit 2 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, original repository
Downloads a script from the internet and runs it
Install Keryx
Built from the published package, never by AIclaude mcp add keryx -- npx -y @mrciphersmith/keryxRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"keryx": {
"command": "npx",
"args": [
"-y",
"@mrciphersmith/keryx"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"keryx": {
"command": "npx",
"args": [
"-y",
"@mrciphersmith/keryx"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"keryx": {
"command": "npx",
"args": [
"-y",
"@mrciphersmith/keryx"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add keryx -- npx -y @mrciphersmith/keryx{
"mcpServers": {
"keryx": {
"command": "npx",
"args": [
"-y",
"@mrciphersmith/keryx"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add keryx npx -y @mrciphersmith/keryxGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the keryx block.
Security check
C- Downloads a script from the internet and runs itIn
README.md:curl -fsSL https://raw.githubusercontent.com/MrCipherSmith/keryx/main/scripts/install-binary.sh | bash
Checked automatically: README.md, package.json. This looks for known risky patterns and is not a full audit. How grades work
Alternatives to Keryx
All alternatives →
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Keryx: common questions
How do I install Keryx?
In Claude Code run claude mcp add keryx -- npx -y @mrciphersmith/keryx. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Keryx the official server?
Keryx is published by npm:@mrciphersmith from its verified domain in the official MCP Registry.
Is Keryx free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Keryx safe to use?
It scores 83 of 100. Grades: maintenance A, licence A, quality C. Security check: grade C (downloads a script from the internet and runs it). Review the code before you install. How grades work.
What are alternatives to Keryx?
Similar MCP servers: mockserver, XcodeBuildMCP, Repowise, SmartBear MCP.
Does Keryx work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.