Retain SO MCP Server
by retain-soio.github.retain-so/mcp-serverv0.1.2
Model Context Protocol server for Retain: let AI agents query churn risk and act on retention.
context tax
queued
security
queued
cold start
queued
freshness
Maintained2mo ago
Install Retain SO MCP server
Install in Claude Code
claude mcp add retain-so -e RETAIN_API_KEY='<retain-api-key>' -- npx -y @retain-so/mcp-serverInstall in Cursor
{
"mcpServers": {
"retain-so": {
"command": "npx",
"args": [
"-y",
"@retain-so/mcp-server"
],
"env": {
"RETAIN_API_KEY": "<retain-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"retain-so": {
"command": "npx",
"args": [
"-y",
"@retain-so/mcp-server"
],
"env": {
"RETAIN_API_KEY": "<retain-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"retain-so": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@retain-so/mcp-server"
],
"env": {
"RETAIN_API_KEY": "<retain-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"retain-so": {
"command": "npx",
"args": [
"-y",
"@retain-so/mcp-server"
],
"env": {
"RETAIN_API_KEY": "<retain-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| RETAIN_API_KEY | yes | yes | Your API key from Retain |
Freshness
Maintained — last maintenance signal 2mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-08-08 · 2mo ago · GitHub
Latest release
2026-06-05 · 4mo ago · GitHub · v0.1.1
Package published
no data · npm/PyPI
Registry entry updated
2026-06-05 · 4mo ago · official registry · v0.1.2
FAQ
›How do I install the Retain SO MCP server in Claude Code?
Run: claude mcp add retain-so -e RETAIN_API_KEY='<retain-api-key>' -- npx -y @retain-so/mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Retain SO require an API key?
Yes. It expects RETAIN_API_KEY, of which 1 is a secret.
›Can I use Retain SO as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Retain SO in the official MCP registry?
Yes, as io.github.retain-so/mcp-server.