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mcp/harbor
Claude Code

mcp server for Claude Code

io.github.retain-so/mcp-server

Model Context Protocol server for Retain: let AI agents query churn risk and act on retention.

client:Claude Code transport:stdio runtime:npm

Install mcp server in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add mcp-server -e RETAIN_API_KEY=<RETAIN_API_KEY> -- npx -y @retain-so/mcp-server

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

mcp server in other clients

mcp server MCP server