MCP Server

RetentionCheck MCP Server

Name: RetentionCheck MCP Server
Author: io.github.brianfofficial

io.github.brianfofficial/retentioncheck-mcp-server

Repository Registry

What is the RetentionCheck MCP server?

Pull churn from Stripe, Postgres, MySQL, or pasted feedback. AI-ranked drivers + fixes.

How to install RetentionCheck

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ANTHROPIC_API_KEY
secret
Anthropic API key for running churn analysis (required for analyze_churn, analyze_stripe_churn, and analyze_sql_churn; get_example_analysis works without it).
STRIPE_SECRET_KEY
secret
Stripe API key for analyze_stripe_churn. Use a RESTRICTED (read-only) key with these permissions: Subscriptions Read, Customers Read, Prices Read. Create one at https://dashboard.stripe.com/apikeys/create. Optional — only required for the analyze_stripe_churn tool.
POSTGRES_URL
secret
Postgres connection string for analyze_sql_churn when dialect='postgres'. Format: postgres://user:pass@host:5432/db?sslmode=require. Use a READ-ONLY user — see retentioncheck.com/integrations for the exact GRANT SQL. Optional — only required for the analyze_sql_churn tool with postgres dialect.
MYSQL_URL
secret
MySQL connection string for analyze_sql_churn when dialect='mysql'. Format: mysql://user:pass@host:3306/db?ssl=true. Use a READ-ONLY user — see retentioncheck.com/integrations for the exact GRANT SQL. Optional — only required for the analyze_sql_churn tool with mysql dialect.
RETENTIONCHECK_TELEMETRY
Set to 0 to opt out of anonymous usage telemetry. Telemetry tracks tool invocations and aggregate counts — never the feedback text, financial values, or any PII.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "retentioncheck-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@retentioncheck/mcp-server"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "STRIPE_SECRET_KEY": "<YOUR_STRIPE_SECRET_KEY>",
        "POSTGRES_URL": "<YOUR_POSTGRES_URL>",
        "MYSQL_URL": "<YOUR_MYSQL_URL>",
        "RETENTIONCHECK_TELEMETRY": "<YOUR_RETENTIONCHECK_TELEMETRY>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "retentioncheck-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@retentioncheck/mcp-server"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "STRIPE_SECRET_KEY": "<YOUR_STRIPE_SECRET_KEY>",
        "POSTGRES_URL": "<YOUR_POSTGRES_URL>",
        "MYSQL_URL": "<YOUR_MYSQL_URL>",
        "RETENTIONCHECK_TELEMETRY": "<YOUR_RETENTIONCHECK_TELEMETRY>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "retentioncheck-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@retentioncheck/mcp-server"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "STRIPE_SECRET_KEY": "<YOUR_STRIPE_SECRET_KEY>",
        "POSTGRES_URL": "<YOUR_POSTGRES_URL>",
        "MYSQL_URL": "<YOUR_MYSQL_URL>",
        "RETENTIONCHECK_TELEMETRY": "<YOUR_RETENTIONCHECK_TELEMETRY>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "retentioncheck-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@retentioncheck/mcp-server"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "STRIPE_SECRET_KEY": "<YOUR_STRIPE_SECRET_KEY>",
        "POSTGRES_URL": "<YOUR_POSTGRES_URL>",
        "MYSQL_URL": "<YOUR_MYSQL_URL>",
        "RETENTIONCHECK_TELEMETRY": "<YOUR_RETENTIONCHECK_TELEMETRY>"
      }
    }
  }
}

Claude Code

claude mcp add retentioncheck-mcp-server --env ANTHROPIC_API_KEY=<YOUR_ANTHROPIC_API_KEY> --env STRIPE_SECRET_KEY=<YOUR_STRIPE_SECRET_KEY> --env POSTGRES_URL=<YOUR_POSTGRES_URL> --env MYSQL_URL=<YOUR_MYSQL_URL> --env RETENTIONCHECK_TELEMETRY=<YOUR_RETENTIONCHECK_TELEMETRY> -- npx -y @retentioncheck/mcp-server